86 research outputs found
Основні аспекти дистанційної освіти студентів у період епідемічних обмежень (Web of Sciense)
No full textSybirna R. The main aspects of distance education for students in times of epidemic restrictions / Roma Sybirna, Ganna Polishchuk, Oleksandr Balanutsa, Alla Marchuk // Revista Tempos E Espaços Em Educação. - 2022. - V.15. - № 34. - e16906. - https://doi.org/10.20952/revtee.v15i34.16906Нові умови, з якими зіткнулася вся світова спільнота в 2020 році, пов'язані з оголошенням Всесвітньою організацією охорони здоров'я (ВООЗ) пандемії коронавірусу (COVID-19), призвели до повного переходу всіх освітніх організацій світу на дистанційне навчання. Раніше дистанційно навчалися лише ті студенти, які при вступі обрали цю форму. В умовах пандемії студенти денної і заочної форми навчання були змушені перейти на цей формат. Природно, це викликало певні труднощі, як для викладачів, так і для студентів. Проте потреба миттєвого і, як виявилося, тривалого й універсального переходу на дистанційне навчання виявилася дуже несподіваною та проблемною для багатьох суб'єктів освітнього простору як у вищих навчальних закладах, так і на рівні середньої освіти. Таким чином, основною метою статті є дослідження основних аспектів та особливостей впровадження основних методик та засобів дистанційної освіти в період пандемічних обмежень. Дослідження проводилося з використанням наступних теоретичних методів: системний аналіз і синтез, індукція та дедукція, порівняння, класифікація, узагальнення та систематизація, ідеалізація та абстракція. The new conditions that the entire world community faced in 2020, associated with the
announcement by the World Health Organization (WHO) of the coronavirus (COVID-19) pandemic,
led to the complete transition of all educational organizations of the world to distance learning.
Previously, only those students who chose this form upon admission were trained remotely. In the
context of a pandemic, students of full-time, part-time, and part-time (non-distance) departments
were forced to switch to this format. Naturally, this caused certain difficulties, both for teachers and
students. However, the demand for an instant and, as it turned out, a long and universal transition
to distance learning turned out to be very unexpected and problematic for many subjects of the
educational space, both in higher education and in the middle level. Thus, the main purpose of
article is to study the main aspects and features of the introduction of basic techniques and means
of distance education during the period of pandemic restrictions. The study was carried out using
the following theoretical methods: systems analysis and synthesis, induction and deduction,
comparison, classification, generalization and systematization, idealization and abstraction
Early polarization observations of the optical emission of gamma-ray bursts: GRB 150301B and GRB 150413A
No full textWe report early optical linear polarization observations of two gamma-ray burstsmade with the MASTER robotic telescope network. We found the minimum polarization for GRB 150301B to be 8 per cent at the beginning of the initial stage, whereas we detected no polarization for GRB 150413A either at the rising branch or after the burst reached the power-law afterglow stage. This is the earliest measurement of the polarization (in cosmological rest frame) of gamma-ray bursts. The primary intent of the paper is to discover optical emission and publish extremely rare (unique) high-quality light curves of the prompt optical emission of gammaray bursts during the non-monotonic stage of their evolution. We report that our team has discovered the optical counterpart of one of the bursts, GRB 150413A.Fil: Gorbovskoy, E.S.. Lomonosov Moscow State University; Rusia. Moscow State University; RusiaFil: Lipunov, V.M.. Lomonosov Moscow State University; . Moscow State University; RusiaFil: Buckley, D. A. H.. South African Astronomical Observatory; SudáfricaFil: Kornilov, V. G.. Lomonosov Moscow State University; Rusia. Moscow State University; RusiaFil: Balanutsa, P. V.. Lomonosov Moscow State University; Rusia. Moscow State University; RusiaFil: Tyurina, N. V.. Lomonosov Moscow State University; Rusia. Moscow State University; RusiaFil: Kuznetsov, A. S.. Lomonosov Moscow State University; Rusia. Moscow State University; RusiaFil: Kuvshinov, D. A.. Lomonosov Moscow State University; Rusia. Moscow State University; RusiaFil: Gorbunov, I. A.. Lomonosov Moscow State University
; Rusia. Sternberg Astronomical Institute, Moscow State University; RusiaFil: Vlasenko, D.. Lomonosov Moscow State University; RusiaFil: Popova, E.. Lomonosov Moscow State University; Ruanda. Sternberg Astronomical Institute; RusiaFil: Chazov, V. V.. Sternberg Astronomical Institute; Rusia. Lomonosov Moscow State University; RusiaFil: Potter, S.. South African Astronomical Observatory; SudáfricaFil: Kotze, M.. South African Astronomical Observatory; SudáfricaFil: Kniazev, A. Y.. South African Astronomical Observatory; Sudáfrica. Southern African Large Telescope Foundation; SudáfricaFil: Gress, O. A.. Irkutsk State University; RusiaFil: Budnev, N. M.. Irkutsk State University; RusiaFil: Ivanov, K. I.. Irkutsk State University; RusiaFil: Yazev, S. A.. Irkutsk State University; RusiaFil: Tlatov, A. G.. Kislovodsk Solar Station of the Pulkovo Observatory RAS; RusiaFil: Senik, V. A.. Lomonosov Moscow State University; Rusia. Sternberg Astronomical Institute; Rusia. Kislovodsk Solar Station of the Pulkovo Observatory RAS; RusiaFil: Dormidontov, D. V.. Lomonosov Moscow State University; Rusia. Sternberg Astronomical Institute; Rusia. Kislovodsk Solar Station of the Pulkovo Observatory RAS; RusiaFil: Parhomenko, A. V.. Lomonosov Moscow State University; . Pulkovo Observatory Of The Russian Academy Of Sciences; . Sternberg Astronomical Institute; RusiaFil: Krushinski, V. V.. Kislovodsk Solar Station of the Pulkovo Observatory RAS; RusiaFil: Zalozhnich, I. S.. Kislovodsk Solar Station of the Pulkovo Observatory RAS; RusiaFil: Castro Tirado, R. Alberto. Consejo Superior de Investigaciones Científicas; EspañaFil: Sánchez Ramírez, R.. Consejo Superior de Investigaciones Científicas; EspañaFil: Sergienko, Yu.P.. Blagoveschensk Educational State University; RusiaFil: Gabovich, A.. Blagoveschensk Educational State University; RusiaFil: Yurkov, V.V.. Blagoveschensk Educational State University; RusiaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Saffe, Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Mallamaci, Claudio Carlos. Observatorio Astronmico Félix Aguilar; ArgentinaFil: Lopez, C.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Podesta, F.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Vladimirov, V. V.. Lomonosov Moscow State University; Rusia. Sternberg Astronomical Institute, Moscow State University; Rusi
MASTER Optical Detection of the First LIGO/Virgo Neutron Star Binary Merger GW170817
No full textFollowing the discovery of the gravitational-wave source GW170817 by three Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo antennae (Abbott et al., 2017a), the MASTER Global Robotic Net telescopes obtained the first image of the NGC 4993 host galaxy. An optical transient, MASTER OTJ130948.10-232253.3/SSS17a was later found, which appears to be a kilonova resulting from the merger of two neutron stars (NSs). Here we describe this independent detection and photometry of the kilonova made in white light, and in B, V, and R filters. We note that the luminosity of this kilonova in NGC 4993 is very close to those measured for other kilonovae possibly associated with gamma-ray burst (GRB) 130603 and GRB 080503.Fil: Lipunov, V. M.. Lomonosov Moscow State University; RusiaFil: Gorbovskoy, E.. Lomonosov Moscow State University; RusiaFil: Kornilov, V. G.. Lomonosov Moscow State University; RusiaFil: Tyurina, N.. Lomonosov Moscow State University; RusiaFil: Balanutsa, P.. Lomonosov Moscow State University; RusiaFil: Kuznetsov, A.. Lomonosov Moscow State University; RusiaFil: Vlasenko, D.. Lomonosov Moscow State University; RusiaFil: Kuvshinov, D.. Lomonosov Moscow State University; RusiaFil: Gorbunov, I.. Lomonosov Moscow State University; RusiaFil: Buckley, D. A. H.. South African Astrophysical Observatory; SudáfricaFil: Krylov, A. V.. Lomonosov Moscow State University; RusiaFil: Podesta, R.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Lopez, C.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Podesta, F.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Saffe, Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Mallamachi, C.. Universidad Nacional de San Juan; ArgentinaFil: Potter, S.. South African Astrophysical Observatory; SudáfricaFil: Budnev, N. M.. Irkutsk State University; RusiaFil: Gress, O.. Lomonosov Moscow State University; Rusia. Irkutsk State University; RusiaFil: Ishmuhametova, Yu.. Irkutsk State University; RusiaFil: Vladimirov, V.. Lomonosov Moscow State University; RusiaFil: Zimnukhov, D.. Lomonosov Moscow State University; RusiaFil: Yurkov, V.. Blagoveschensk State Pedagogical University; RusiaFil: Sergienko, Yu.. Blagoveschensk State Pedagogical University; RusiaFil: Gabovich, A.. Blagoveschensk State Pedagogical University; RusiaFil: Rebolo, R.. Instituto de Astrofísica de Canarias; EspañaFil: Serra Ricart, M.. Instituto de Astrofísica de Canarias; EspañaFil: Israelyan, G.. Instituto de Astrofísica de Canarias; EspañaFil: Chazov, V.. Lomonosov Moscow State University; RusiaFil: Wang, Xiaofeng. Tsinghua University; ChinaFil: Tlatov, A.. Kislovodsk Solar Observing Station of Pulkovo Observatory; RusiaFil: Panchenko, M. I.. Lomonosov Moscow State University; Rusi
Early Optical Observations of Gamma-Ray Bursts Compared with Their Gamma- and X-Ray Characteristics Using a MASTER Global Network of Robotic Telescopes from Lomonosov Moscow State University
No full textWe present the results of early observations for 130 error-boxes of gamma-ray bursts performed with the Mobile Astronomical System of TElescope-Robots (MASTER) global network of robotic telescopes from Moscow State University in fully automatic mode (2011?2017). Among them, GRB 130907A, GRB 120811C, GRB 110801A, GRB 120404A, GRB 140129B, GRB140311B, and GRB 160227A are considered in details. Among these 130 gamma-ray bursts, in the first 60 s after the trigger with the Swift, Fermi, INTEGRAL, MAXI, Lomonosov, and Konus-Wind orbital observatories, the MASTER was pointed on 51 gamma-ray bursts, being the leader in terms of the first pointing. Full observation automation and MASTER own real-time image processing software allowed us to obtain unique data on early optical emission that accompanied 44 gamma-ray bursts (GRB 110801A, GRB120106A, GRB 120404A, GRB 120811C, GRB 120907A, GRB 121011A, GRB 130122A, GRB 130907A, GRB 131030A, GRB 131125A, GRB 140103A, GRB 140108A, GRB 140129B, GRB 140206A, GRB 140304A, GRB 140311B, GRB 140512A, GRB 140629A, GRB 140801A, GRB140907A, GRB 140930B, GRB141028A, GRB 141225A, GRB 150210A, GRB 150211A, GRB 150301B, GRB 150323C, GRB 150404A/Fermi trigger 449861706, GRB 150403A, GRB 150413A, GRB 150518A, GRB 150627A, GRB 151021A, GRB 151215A, GRB 160104A, GRB 160117B, GRB 160131A, GRB 160227A, GRB 160425A, GRB 160611A, GRB 160625B, GRB 160804A, GRB 160910A, GRB 161017A, GRB 161117A, GRB 161119A). We obtain light curves for 13 gamma-ray bursts among the above listed ones and compare the data in the optical (MASTER), X-ray (Swift-XRT), and hard X-ray (Swift-BAT) ranges.We present the results of early observations for 130 error-boxes of gamma-ray bursts performed with the Mobile Astronomical System of TElescope-Robots (MASTER) global network of robotic telescopes from Moscow State University in fully automatic mode (2011?2017). Among them, GRB 130907A, GRB 120811C, GRB 110801A, GRB 120404A, GRB 140129B, GRB140311B, and GRB 160227A are considered in details. Among these 130 gamma-ray bursts, in the first 60 s after the trigger with the Swift, Fermi, INTEGRAL, MAXI, Lomonosov, and Konus-Wind orbital observatories, the MASTER was pointed on 51 gamma-ray bursts, being the leader in terms of the first pointing. Full observation automation and MASTER own real-time image processing software allowed us to obtain unique data on early optical emission that accompanied 44 gamma-ray bursts (GRB 110801A, GRB120106A, GRB 120404A, GRB 120811C, GRB 120907A, GRB 121011A, GRB 130122A, GRB 130907A, GRB 131030A, GRB 131125A, GRB 140103A, GRB 140108A, GRB 140129B, GRB 140206A, GRB 140304A, GRB 140311B, GRB 140512A, GRB 140629A, GRB 140801A, GRB140907A, GRB 140930B, GRB141028A, GRB 141225A, GRB 150210A, GRB 150211A, GRB 150301B, GRB 150323C, GRB 150404A/Fermi trigger 449861706, GRB 150403A, GRB 150413A, GRB 150518A, GRB 150627A, GRB 151021A, GRB 151215A, GRB 160104A, GRB 160117B, GRB 160131A, GRB 160227A, GRB 160425A, GRB 160611A, GRB 160625B, GRB 160804A, GRB 160910A, GRB 161017A, GRB 161117A, GRB 161119A). We obtain light curves for 13 gamma-ray bursts among the above listed ones and compare the data in the optical (MASTER), X-ray (Swift-XRT), and hard X-ray (Swift-BAT) ranges.Fil: Ershova, O. A.. Irkutsk State University; RusiaFil: Ershova, O. A.. Irkutsk State University; RusiaFil: Lipunov, Vladimir. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Lipunov, Vladimir. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Gorbovskoy, E. S.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Gorbovskoy, E. S.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Tyurina, N. V.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Tyurina, N. V.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Kornilov, V. G.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Kornilov, V. G.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Zimnukhov, D. S.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Zimnukhov, D. S.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Gabovich, A. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Gabovich, A. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Gress, O. A.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Gress, O. A.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Budnev, N. M.. rkutsk State University; RusiaFil: Budnev, N. M.. rkutsk State University; RusiaFil: Yurkov, V. V.. Blagoveshchensk State Pedagogical University; RusiaFil: Yurkov, V. V.. Blagoveshchensk State Pedagogical University; RusiaFil: Vladimirov, V. V.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Vladimirov, V. V.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Kuznetsov. A. S.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Kuznetsov. A. S.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Balanutsa, P. V.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Balanutsa, P. V.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Rebolo, R.. Instituto de Astrofisica de Canarias; EspañaFil: Rebolo, R.. Instituto de Astrofisica de Canarias; EspañaFil: Serra Ricart, M.. Instituto de Astrofisica de Canarias; EspañaFil: Serra Ricart, M.. Instituto de Astrofisica de Canarias; EspañaFil: Buckley, D.. South African Astrophysical Observatory; SudáfricaFil: Buckley, D.. South African Astrophysical Observatory; SudáfricaFil: Podestá, Ricardo César. Universidad Nacional de San Juan; ArgentinaFil: Podestá, Ricardo César. Universidad Nacional de San Juan; ArgentinaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Lopez, Carlos. Universidad Nacional de San Juan; ArgentinaFil: Lopez, Carlos. Universidad Nacional de San Juan; ArgentinaFil: Podesta, Federico. Universidad Nacional de San Juan; ArgentinaFil: Podesta, Federico. Universidad Nacional de San Juan; ArgentinaFil: Francile, Carlos Natale. Universidad Nacional de San Juan; ArgentinaFil: Francile, Carlos Natale. Universidad Nacional de San Juan; ArgentinaFil: Mallamaci, Claudio Carlos. Universidad Nacional de San Juan; ArgentinaFil: Mallamaci, Claudio Carlos. Universidad Nacional de San Juan; ArgentinaFil: Yazev, S. A.. Irkutsk State University; RusiaFil: Yazev, S. A.. Irkutsk State University; RusiaFil: Vlasenko, D. M.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Vlasenko, D. M.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Tlatov, A.. Russian Academy of Sciences; RusiaFil: Tlatov, A.. Russian Academy of Sciences; RusiaFil: Senik, V.. Irkutsk State University; RusiaFil: Senik, V.. Irkutsk State University; RusiaFil: Grinshpun, V.. Moscow State University. Physics Department; RusiaFil: Grinshpun, V.. Moscow State University. Physics Department; RusiaFil: Chasovnikov, A.. Lomonosov Moscow State University. Physics Department; RusiaFil: Chasovnikov, A.. Lomonosov Moscow State University. Physics Department; RusiaFil: Topolev, V.. Moscow State University. Physics Department; RusiaFil: Topolev, V.. Moscow State University. Physics Department; RusiaFil: Pozdnyakov, A.. Moscow State University. Physics Department; RusiaFil: Pozdnyakov, A.. Moscow State University. Physics Department; RusiaFil: Zhirkov, K.. Moscow State University. Physics Department; RusiaFil: Zhirkov, K.. Moscow State University. Physics Department; RusiaFil: Kuvshinov, D.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Kuvshinov, D.. Lomonosov Moscow State University. Sternberg Astronomical Institute; RusiaFil: Balakin, F.. Moscow State University. Physics Department; RusiaFil: Balakin, F.. Moscow State University. Physics Department; Rusi
Основні аспекти професійної підготовки студентів в умовах пандемії (Web of Science)
No full textSybirna R. The main aspects of professional training of students in a pandemic / Roma Sybirna, Tetiana Fursykova, Ganna Polishchuk, Oleksandr Balanutsa, Alla Marchuk // Revista Tempos E Espaços em Educação. - 2021. - V.14. - N. 33. - Pp. e16583.Головною метою дослідження є аналіз основних аспектів професійної підготовки студентів в умовах пандемії. У сучасних умовах важливе місце відводиться інтеграції науки, освіти та інновацій. Університетська освіта покликана давати системні знання про професійну сферу діяльності, її специфіку і має формувати особистісні якості фахівця.
Потреба у висококваліфікованих та ініціативних фахівцях загострюється в нових умовах, де особливого значення набувають питання професійно-практичної підготовки та виховання конкурентоспроможного спеціаліста під час навчання у закладах вищої освіти. За результатами дослідження визначено ключові аспекти професійної підготовки студентів в умовах пандемії.
The main purpose of the study is to analyze the main aspects of professional training of students in
a pandemic. In modern conditions, an important place is given to the integration of science,
education and innovation. University education is designed to provide systemic knowledge about
the professional field of activity, its specifics and should form the personal qualities of a specialist.
It is assumed that this is one of the decisive factors in the development of the economy and society.
The need for highly qualified and proactive workers is exacerbated in new conditions, where the
issues of professional and practical training and education of a competitive specialist during their
studies at higher educational institutions are of particular importance. The development of
university education provides for the acquisition of such a quality that meets the needs of the
student's personality, the requirements of society and ensures integration into the global
educational space. In modern market conditions, the following requirements are imposed on them:
a high level of theoretical training, the prevailing level of social maturity, high efficiency in situations
of uncertainty, quick adaptation to the working environment. The study was carried out using the
following theoretical methods: systems analysis and synthesis, induction and deduction,
comparison, classification, generalization and systematization, idealization and abstraction. Based
on the results of the study, the key aspects of professional training of students in a pandemic have
been determined
MASTER OPTICAL POLARIZATION VARIABILITY DETECTION IN THE MICROQUASAR V404 CYG/GS 2023+33
No full textOn 2015 June 15, the Swift space observatory discovered that the Galactic black hole candidate V404 Cyg was undergoing another active X-ray phase, after 25 years of inactivity. The 12 telescopes of the MASTER Global Robotic Net located at six sites across four continents were the first ground-based observatories to start optical monitoring of the microquasar after its gamma-ray wake up at 18h 34m 09s U.T. on 2015 June 15. In this paper, we report, for the first time, the discovery of variable optical linear polarization, changing by 4%-6% over a timescale of ∼1 hr, on two different epochs. We can conclude that the additional variable polarization arises from the relativistic jet generated by the black hole in V404 Cyg. The polarization variability correlates with optical brightness changes, increasing when the flux decreases.Fil: Lipunov, V.. M.V.Lomonosov Moscow State University. Physics Department; RusiaFil: Gorbovskoy, E.. M.V.Lomonosov Moscow State University, Sternberg Astronomical Institute; RusiaFil: Krushinskiy, V.. Kourovka Astronomical Observatory, Ural Federal University; RusiaFil: Vlasenko, D.. M.V.Lomonosov Moscow State University, Sternberg Astronomical Institute; RusiaFil: Tiurina, N.. M.V.Lomonosov Moscow State University, Sternberg Astronomical Institute; RusiaFil: Balanutsa, P.. M.V.Lomonosov Moscow State University, Sternberg Astronomical Institute; RusiaFil: Kuznetsov, A.. M.V.Lomonosov Moscow State University, Sternberg Astronomical Institute; RusiaFil: Budnev, N.. Applied Physics Institute. Irkutsk State University; RusiaFil: Gress, O.. Applied Physics Institute, Irkutsk State University; RusiaFil: Tlatov, A.. Kislovodsk Solar Station of the Main (Pulkovo) Observatory RAS; RusiaFil: Rebolo Lopez, L.. Instituto de Astrofsica de Canarias; EspañaFil: Serra-Ricart, M.. Instituto de Astrofsica de Canarias; EspañaFil: Buckley, D. A. H.. South African Astronomical Observatory; SudáfricaFil: Israelyan, G.. Instituto de Astrofsica de Canarias; EspañaFil: Lodieu, N.. Instituto de Astrofisica de Canarias; EspañaFil: Ivanov, K.. Applied Physics Institute. Irkutsk State University; RusiaFil: Yazev, S.. Applied Physics Institute, Irkutsk State University; RusiaFil: Sergienko, Y.. Blagoveschensk State Pedagogical University; RusiaFil: Gabovich, A.. Blagoveschensk State Pedagogical University; RusiaFil: Yurkov, V.. Blagoveschensk State Pedagogical University; RusiaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Saffe, Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Podesta, R.. Observatorio "Felix Aguiklar". Universidad Nacional de San Juan; ArgentinaFil: Lopez, C.. Observatorio "Felix Aguilar". Universidad nacional de San juan; Argentin
First gravitational-wave burst GW150914: MASTER optical follow-up observations
No full textThe Advanced LIGO observatory recently reported the first direct detection of the gravitational waves (GWs) predicted by Einstein & Sitzungsber. We report on the first optical observations of the GW source GW150914 error region with the Global MASTER Robotic Net. Between the optical telescopes of electromagnetic support, the covered area is dominated by MASTER with an unfiltered magnitude up to 19.9 mag (5σ). We detected several optical transients, which proved to be unconnected with the GW event. The main input to investigate the final error box of GW150914 was made by the MASTER-SAAO robotic telescope, which covered 70 per cent of the final GW error box and 90 per cent of the common localization area of the LIGO and Fermi events. Our result is consistent with the conclusion (Abbott et al. 2016a) that GWs from GW150914 were produced in a binary black hole merger. At the same time, we cannot exclude that MASTER OT J040938.68-541316.9 exploded on 2015 September 14.Fil: Lipunov, V. M.. Lomonosov Moscow State University; RusiaFil: Kornilov, V.. Lomonosov Moscow State University; RusiaFil: Gorbovskoy, E.. Lomonosov Moscow State University; RusiaFil: Buckley, D. A. H.. South African Astronomical Observatory; SudáfricaFil: Tiurina, N.. Lomonosov Moscow State University; RusiaFil: Balanutsa, P.. Lomonosov Moscow State University; RusiaFil: Kuznetsov, A.. Lomonosov Moscow State University; RusiaFil: Greiner, J.. Max-Planck-Institut für extraterrestrische Physik; AlemaniaFil: Vladimirov, V.. Lomonosov Moscow State University; RusiaFil: Vlasenko, D.. Lomonosov Moscow State University; RusiaFil: Chazov, V.. Lomonosov Moscow State University; RusiaFil: Kuvshinov, D.. Lomonosov Moscow State University; RusiaFil: Gabovich, A.. Blagoveschensk State Pedagogical University; RusiaFil: Potter, S. B.. South African Astronomical Observatory; SudáfricaFil: Kniazev, A.. South African Astronomical Observatory; SudáfricaFil: Crawford, S.. South African Astronomical Observatory;Fil: Rebolo Lopez, R.. Instituto de Astrofacuteisica de Canarias Vía Láctea; EspañaFil: Serra Ricart, M.. Instituto de Astrofacuteisica de Canarias Vía Láctea; EspañaFil: Israelian, G.. Instituto de Astrofacuteisica de Canarias Vía Láctea; EspañaFil: Lodieu, N.. Instituto de Astrofacuteisica de Canarias Vía Láctea; EspañaFil: Gress, O.. Irkutsk State University; RusiaFil: Budnev, N.. Irkutsk State University; RusiaFil: Ivanov, K.. Irkutsk State University; RusiaFil: Poleschuk, V.. Irkutsk State University; RusiaFil: Yazev, S.. Irkutsk State University; RusiaFil: Tlatov, A.. Russian Academy of Sciences. Pulkovo Astronomical Observatory; RusiaFil: Senik, V.. Russian Academy of Sciences. Pulkovo Astronomical Observatory; RusiaFil: Yurkov, V.. Blagoveschensk State Pedagogical University; RusiaFil: Dormidontov, D.. Russian Academy of Sciences. Pulkovo Astronomical Observatory; RusiaFil: Parkhomenko, A.. Russian Academy of Sciences. Pulkovo Astronomical Observatory; RusiaFil: Sergienko, Yu.. Blagoveschensk State Pedagogical University; RusiaFil: Podestá, Ricardo César. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: López, Carlos Eduardo. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Saffe, Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Podestá, Florencia. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; ArgentinaFil: Mallamaci, Claudio Carlos. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Informática. Observatorio Astronómico Félix Aguilar; Argentin
The optical identification of events with poorly defined locations: The case of the Fermi GBM GRB 140801A
No full textWe report the early discovery of the optical afterglow of gamma-ray burst (GRB) 140801A in the 137 deg2 3-σ error-box of the Fermi Gamma-ray Burst Monitor (GBM). MASTER is the only observatory that automatically reacts to all Fermi alerts. GRB 140801A is one of the few GRBs whose optical counterpart was discovered solely from its GBM localization. The optical afterglow of GRB 140801A was found by MASTER Global Robotic Net 53 s after receiving the alert, making it the fastest optical detection of a GRB from a GBM error-box. Spectroscopy obtained with the 10.4-m Gran Telescopio Canarias and the 6-m Big Telescope Alt-azimuth of the Special Astrophysical Observatory of the Russian Academy of Sciences reveals a redshift of z = 1.32. We performed optical and near-infrared photometry of GRB 140801A using different telescopes with apertures ranging from 0.4 to 10.4 m. GRB 140801A is a typical burst in many ways. The rest-frame bolometric isotropic energy release and peak energy of the burst are Eiso = 5.54+0.26 -0.24 × 1052 erg and Ep, rest ≃280 keV, respectively, which is consistent with the Amati relation. The absence of a jet break in the optical light curve provides a lower limit on the half-opening angle of the jet θ = 6.° 1. The observed Epeak is consistent with the limit derived from the Ghirlanda relation. The joint Fermi GBM and Konus-Wind analysis show that GRB 140801A could belong to the class of intermediate duration. The rapid detection of the optical counterpart of GRB 140801A is especially important regarding the upcoming experiments with large coordinate error-box areas. © 2015 The Authors.Seventh Framework Programme, FP7: 60745
The optical identification of events with poorly defined locations: The case of the Fermi GBM GRB 140801A
No full textLipunov, V. M. et al.--Full list of authors: Lipunov, V. M.; Gorosabel, J.; Pruzhinskaya, M. V.; de Ugarte Postigo, A.; Pelassa, V.; Tsvetkova, A. E.; Sokolov, I. V.; Kann, D. A.; Xu, Dong; Gorbovskoy, E. S.; Krushinski, V. V.; Kornilov, V. G.; Balanutsa, P. V.; Boronina, S. V.; Budnev, N. M.; Cano, Z.; Castro-Tirado, A. J.; Chazov, V. V.; Connaughton, V.; Delvaux, C.; Frederiks, D. D.; Fynbo, J. F. U.; Gabovich, A. V.; Goldstein, A.; Greiner, J.; Gress, O. A.; Ivanov, K. I.; Jakobsson, P.; Klose, S.; Knust, F.; Komarova, V. N.; Konstantinov, E.; Krylov, A. V.; Kuvshinov, D. A.; Kuznetsov, A. S.; Lipunova, G. V.; Moskvitin, A. S.; Pal'shin, V. D.; Pandey, S. B.; Poleshchuk, V. A.; Schmidl, S.; Sergienko, Yu. P.; Sinyakov, E. V.; Schulze, S.; Sokolov, V. V.; Sokolova, T. N.; Sparre, M.; Thöne, C. C.; Tlatov, A. G.; Tyurina, N. V.; Ulanov, M. V.; Yazev, S. A.; Yurkov, V. V.We report the early discovery of the optical afterglow of gamma-ray burst (GRB) 140801A in the 137 deg 3-σ error-box of the Fermi Gamma-ray Burst Monitor (GBM). MASTER is the only observatory that automatically reacts to all Fermi alerts. GRB 140801A is one of the few GRBs whose optical counterpart was discovered solely from its GBM localization. The optical afterglow of GRB 140801A was found by MASTER Global Robotic Net 53 s after receiving the alert, making it the fastest optical detection of a GRB from a GBM error-box. Spectroscopy obtained with the 10.4-m Gran Telescopio Canarias and the 6-m Big Telescope Alt-azimuth of the Special Astrophysical Observatory of the Russian Academy of Sciences reveals a redshift of z = 1.32. We performed optical and near-infrared photometry of GRB 140801A using different telescopes with apertures ranging from 0.4 to 10.4 m. GRB 140801A is a typical burst in many ways. The rest-frame bolometric isotropic energy release and peak energy of the burst are E = 5.54 × 10 erg and E ≃280 keV, respectively, which is consistent with the Amati relation. The absence of a jet break in the optical light curve provides a lower limit on the half-opening angle of the jet θ = 6.° 1. The observed E is consistent with the limit derived from the Ghirlanda relation. The joint Fermi GBM and Konus-Wind analysis show that GRB 140801A could belong to the class of intermediate duration. The rapid detection of the optical counterpart of GRB 140801A is especially important regarding the upcoming experiments with large coordinate error-box areas. © 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.MASTER Global Robotic Net is supported in part by the Development Programme of Lomonosov Moscow State University. This work was also supported in part by RFBR 15-02-07875 grant.
This work is also partially supported by the Russian Federation Ministry of Education and Science (agreement 14.B25.31.0010 and government assignment 2014/51, project 1366) and by state order No. 3.615.2014/K in relation to scientific activity (design part). The Fermi GBM collaboration acknowledges support for GBM development, operations, and data analysis from NASA in the U.S.A and BMWi/DLR in Germany. AG is supported by an appointment to the NASA Postdoctoral Program at MSFC, administered by Oak Ridge Associated Universities through a contract with NASA. This work made use of data supplied by the UK Swift Science Data Centre at the University of Leicester. This research has made use of NASA's Astrophysics Data System. The Fermi GBM collaboration acknowledges support for GBM development, operations, and data analysis from NASA in the United States and BMWi/DLR in Germany. AG is supported by an appointment to the NASA Postdoctoral Program at MSFC, administered by Oak Ridge Associated Universities through a contract with NASA. This work was supported in part by Russian Foundation of Fundamental Research, grant RFBR 14-02-31546, 14-02-91172. This work made use of data supplied by the UK Swift Science Data Centre at the University of Leicester. This research has made use of NASA's Astrophysics Data System. The KW experiment is partially supported by a Russian Space Agency contract, RFBR grants 15-02-00532a and 13-02-12017 ofi-m. Part of the funding for GROND (both hardware and personnel) was generously granted from the Leibniz-Prize to Professor G. Hasinger (DFG grant HA 1850/28-1). AJC acknowledges support from the Spanish Ministry Grant AYA 2012-39727-C03-01. The data presented here were obtained in part with ALFOSC, which is provided by the Instituto de Astrofisica de Andalucia (IAA) under a joint agreement with the University of Copenhagen and NOTSA. CD acknowledges support through EXTraS, funded from the European Union's Seventh Framework Programme for research, technological development and demonstration under grant agreement no 607452. DAK, SK, and SS acknowledge support by DFG grants Kl 766/16-1 and 766/16-3. In addition, SS acknowledges support by the Thüringer Ministerium für Bildung, Wissenschaft und Kultur under FKZ 12010-514. We acknowledge A. Burenkov, V. Vlasyuk and T. Fatkhullin for the help in observations. AM, VK and TS are partially supported by the Research Program OFN-17 of the Division of Physics, Russian Academy of Sciences. AM is also partially supported by the grant MK-1699.2014.2 of the President of Russian Federation and by RFBR 14-32-50547. SS acknowledges support from CONICYT-Chile FONDECYT 3140534, Basal-CATA PFB-06/2007, and Project IC120009 ‘Millennium Institute of Astrophysics (MAS) of Iniciativa Científica Milenio del Ministerio de Economía, Fomento y Turismo’.Peer reviewe
Three-stage Collapse of the Long Gamma-Ray Burst from GRB 160625B Prompt Multiwavelength Observations
No full textThis article presents the early results of synchronous multiwavelength observations of one of the brightest gamma-ray bursts (GRBs) GRB 160625B with the detailed continuous fast optical photometry of its optical counterpart obtained by MASTER and with hard X-ray and gamma-ray emission, obtained by the Lomonosov and Konus-Wind spacecraft. The detailed photometry led us to detect the quasi-periodical emission components in the intrinsic optical emission. As a result of our analysis of synchronous multiwavelength observations, we propose a three-stage collapse scenario for this long and bright GRB. We suggest that quasiperiodic fluctuations may be associated with forced precession of a self-gravitating rapidly rotating superdense body (spinar), whose evolution is determined by a powerful magnetic field. The spinar’s mass allows it to collapse into a black hole at the end of evolution
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