1,799,161 research outputs found

    Astronomy & Astrophysics (CAUCASUS)-VOLUME 2

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    The second volume of the international scientific journal Astronomy & Astrophysics (Caucasus) contains the scientific works delivered as scientific reports by their authors at International Scientific Conference Modern Problems of Astrophysics – II’ held at Samtskhe-Javakheti State University on September 26-28, 2016. Many world-leading scientists were invited to the International Scientific Conference as participants, who delivered up to 30 interesting reports (including the sponsored articles). The second Volume presents only the scientific works delivered by 8 speakers (and 27 co-speakers) written at about 15 leading scientific establishments of the world. Other Conference materials will be published in the third volume of the same scientific journal. Professor Revaz Chighladze, Doctor of Physical and Mathematical Sciences, Editor of international scientific journal “ASTRONOMY & ASTROPHYSICS (CAUCASUS)”

    Astronomy & Astrophysics (CAUCASUS)-VOLUME 4

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    The IV volume of Journal “Astronomy & Astrophysics (Caucasus)” was dedicated to the 110th Anniversary of Academician Victor Hambardzumyan. AcademicianVictor Hambardzumyan President of International Union of Astronomy (in 1961 – 1964 and 1966 – 72) Victor Hamazaspovich Hambardzumyan was born on 18 September, 1908, in Tbilisi. He was a Soviet Armenian scientist, and one of the founders of theoretical astrophysics. He worked in the field of physics of stars and nebulae, stellar astronomy, dynamics of stellarsystems and cosmogony of stars and galaxies, and made a great contribution to mathematical physics. Hambardzumyan founded Byurakan Observatory in 1946. He was the second and longestserving president of the Armenian Academy of Sciences (1947–93) and also served as the president of the International Astronomical Union from 1961 to 1964. He was twice elected the President of the International Council of Scientific Unions (1966–72). II He was a foreign member of many academies, including the Royal Society, the US National Academy of Sciences and the Indian Academy of Sciences. Among his numerous awards are Stalin Prize (1946, 1950), the Hero of Socialist Labor (1968, 1978), the State Prize of the Russian Federation, the Gold Medal of the Royal Astronomical Society, the Bruce Gold Medal and the National Hero of Armenia. The great scientist deceased on 12 August 1996

    Astronomy & Astrophysics (CAUCASUS)-VOLUME 3

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    The III volume of Journal “Astronomy & Astrophysics (Caucasus)” was dedicated to the 110th Anniversary of Academician Eugene Kharadze. Academician Evgene Kharadze Vice - President of International Union of Astronomy (1976-82) I would like to give you brief information you about a great Georgian scientist, academician and public person Eugene Kharadze. He was born on October 31, 1907. In 1930, he graduated from Tbilisi State University and in 1931-1934, was a postgraduate student at Leningrad Astronomical Institute. In 1932, he founded Abastumani Astrophysical Observatory, headed it until 1992 (for 60 years!) and was an honorable director of the Observatory for 10 years before he deceased. 2 In 1937-1998, Eugene Kharadze was the head of the Faculty of Astronomy of Tbilisi State University. In 1959-1966, he was the rector of Tbilisi State University. In 1992-2001, he closely cooperated with Samtskhe-Javakheti State University. His works were dedicated to different astronomical fields. Eugene Kharadze was given a title of a Doctor of Physical and Mathematical Sciences (1948) and Professor (1949), Vice-President (1972-77) and President (1978-86) of Georgian Science Academy, Vice-President of International Astronomical Union (1976-82) and Member of Georgian Encyclopedia Council. Academician Eugene Kharadze was awarded with a number of prizes, including an Order of Honor. His painstaking efforts to support the development and success of astrophysical research are indeed invaluable. Today, Abastumani Astrophysical Observatory founded by Eugene Kharadze is engaged in active scientific work. Abastumani Astrophysical Observatory was named after Eugene Kharadze in 2001. The great scientist died on October 10, 2001

    Astronomy and astrophysics abstracts: author, subject, and object indexes

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    Astronomy and Astrophysics Abstracts aims to present a comprehensive documentation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 59/60 - the fifth Cumulative Index of Astronomy and Astrophysics Abstracts - comprises author, subject, and object indexes to volumes 49 - 58. Thus, the astronomical and astrophysical literature of the five-year period 1989 - 1993 is covered by this volume

    The NASA Astrophysics Data System: Free Access to the Astronomical Literature On-Line and through Email

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    The Astrophysics Data System (ADS) provides access to the astronomical literature through the World Wide Web. It is a NASA funded project and access to all the ADS services is free to everybody world-wide. The ADS Abstract Service allows the searching of four databases with abstracts in Astronomy, Instrumentation, Physics/Geophysics, and the LANL Preprints with a total of over 2.2 million references. The system also provides access to reference and citation information, links to on-line data, electronic journal articles, and other on-line information. The ADS Article Service contains the full articles for most of the astronomical literature back to volume 1. It contains the scanned pages of all the major journals (Astrophysical Journal, Astronomical Journal, Astronomy & Astrophysics, Monthly Notices of the Royal Astronomical Society, and Solar Physics), as well as most smaller journals back to volume 1. The ADS can be accessed through any web browser without signup or login. Alternatively an email interface is available that allows our users to execute queries via email and to retrieve scanned articles via email. This might be interesting for users on slow or unreliable links, since the email system will retry sending information automatically until the transfer is complete. There are now 9 mirror sites of the ADS available in different parts of the world to improve access

    Introduction to black hole astrophysics

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    This book is based on the lecture notes of a one-semester course on black hole astrophysics given  by the author and is aimed at advanced undergraduate and graduate students with an interest in astrophysics. The material included goes beyond that found in classic textbooks and presents details on astrophysical manifestations of black holes. In particular, jet physics and detailed accounts of objects like microquasars, active galactic nuclei, gamma-ray bursts, and ultra-luminous X-ray sources are covered, as well as advanced topics like black holes in alternative theories of gravity. The author avoids unnecessary technicalities and to some degree the book is self-contained. The reader will find some basic general relativity tools in Chapter 1. The appendices provide some additional mathematical details that will be useful for further study, and a guide to the bibliography on the subject

    Mathematics and explanation in astronomy and astrophysics

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    The purpose of this paper is to expound and clarify the mathematics and explanations commonly employed in certain notable areas of astronomy and astrophysics. The first section concentrates upon the mathematics employed to represent and understand stellar structure and evolution. The second section analyses two different explanations for the structure of spiral galaxies

    Astronomy and astrophysics abstracts: author and subject indexes to volumes 1-10, literature 1969-1973

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    Astronomy and Astrophysics Abstracts, which has appeared in semi-annual volumes since 1969, is devoted to the recording, summarizing and indexing of astronomical publications through­ out the world. It is prepared under the auspices of the Interna­ tional Astronomical Union (according to a resolution adopted at the 14th General Assembly in 1970). Astronomy and Astrophysics Abstracts aims to present a com­ prehensive documentation of literature in all fields of astronomy and astrophysics. Volume 15/16 contains author and subject indexes of volumes 1 - 10, covering the literature from 1969 to 1973. It is a pleasure to express our warmest thanks to Miss Helga Ballmann, Mrs. Monika Betz, Dr. Siegfried B6hme, Mrs. Karola Gud6, Miss Lore Kiefert, and Mrs. Ingrid Wolf for their kind support in the preparation of the indexes. Heidelberg, June 1976 Ute Esser Inge Heinrich Frieda Henn Dietlinde Krahn Hans Scholl Gert Zech v Introduction The Author Index contains 110 180 references to publications initial letter following the first names. of 28654 different authors. The Subject Index contains 38145 An effort has been made to cite Russian names according to references to 7170 different key words. the following transliteration: The main characteristics of the concept of Astronomy and r Astrophysics Abstracts, Author and Subject Indexes may be A a P p a summarized briefly

    Astronomy & Astrophysics (CAUCASUS)-VOLUME 1

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                                                                                                       Our brief history Our small university, in which 1,500 students are enrolled, is 26 years old. Initially, in 1990, Samtskhe-Javaketi State University was established as a branch of Ivane Javakhishvili Tbilisi State University. This establishment introduced and strengthened Tbilisi University traditions in Akhaltsikhe. From the beginning, we decided to pursue a scientific direction. The co-existence of learning and scientific development helped us to gain prominence in the region, which was a challenge during the economic, political, and social hardships of 1990s. From the outset, the local Georgian and non-Georgian population trusted us. Many collegiate, national, and international conferences were held at our University. Thus the University became the foundation of scientific intelligence of South Georgia. The Abastumani Astrophysical Observatory was the only serious research institution in Samtskhe-Javakheti. It was known in scientific circles for its important scientific work. The University made close scientific contacts with the Observatory from the very first days of its existence. Observatory staff started their pedagogical careers at our University. Academician Evgeni Kharadze, who led the Observatory from the date of its establishment, managed these relations and scientific contacts. At the same time, he was the rector of the Ivane Javakhishvili Tbilisi State University in 1959-1966. So, academic and scientific activities were very familiar to him. In 1992, Evgeni Kharadze and George Tchoghoshvili supported the establishment of the Faculty of Mathematics and Astronomy at the Akhaltsikhe branch of Tbilisi State University. At the time, Revaz Chigladze was the head of the department. Evkgeni Kharadze often visited the branch. Several times, he was a chairman of the State Examination Commission, where our graduates passed their final exams. Professors Revaz Chigladze, Raguli Inasaridz , Lorand Sigua, Khvedri Inasaridze, Rolan Kiladze , Victor Japiashvil and others helped to promote close scientific and educational contacts between Astrophysical Observatory and the University. They worked in Akhaltsikhe and Abastumani. The geographical proximity of these two locations strengthened future research activities. Our university graduates Bidzina Kapanadze, Marekh Ivanidze and Diana Ivanidze defended their doctoral dissertations . In 2014, Samtskhe-Javakheti State University was formed on base of the branch and the State Teaching University. Our doctoral program in astronomy was accredited, which was an important incentive, especially for the staff members who have done a lot of scientific work and have had many years of experience in astronomy, but could not manage to get their doctoral degrees due to the absence of the Doctoral Degree Defense Council. Among them are Givi Kimeridze, Eduard Janiashvili, Roman Ivanidze, Maia Sikharulidze, and others. In addition to our University professors, the Samtskhe-Javakheti Doctoral Council in Astronomy includes Javakhishvili and Ilia State University professors and researchers at the Abastumani Astrophysical Observatory. Samtskhe-Javakheti State University is the only university in Georgia that offers educational programs in astronomy at the Bachelor’s, Master’s, and Doctoral levels. Scientists of the traditional Georgian Astronomical School have not had the opportunity to hold international scientific conferences in Georgia for many years. Samtskhe-Javakheti State University hosted an international conference on October 7-9, 2015. Conference organizers and participants decided to print the conference proceedings. Other scientists responded to this publication and expressed their desire to include their works in the publication. Our organization eagerly shared the relevant work, and today we have a collection of scientific works. We want to thank all the authors, the organizational and editorial members of the group, the faculty of engineering, agricultural and natural sciences - Dean: Professor Giorgi Meskhi, Vice Rector Professor Maka Kachkachishvili-Beridze, Senior specialist Manana Ioseliani and especially, Editor Professor Revaz Chighladze, for their hard work. Samtskhe-Javakheti State University Rector, Professor M. Beridz

    ISRN Astronomy and Astrophysics

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    SRN Astronomy and Astrophysics is a peer-reviewed, open access journal that publishes original research articles as well as review articles in all areas of astronomy and astrophysics
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