138 research outputs found
Timing and location of spawning by bull trout and kokanee in the Odell Lake Watershed and Heising Spring of the Metolius River Watershed, 2003-04
No full textTitle from PDF title page (viewed on November 9, 2018)."Sport Fish Restoration Project F-136R-16."This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 13-14).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems
No full textFull list of the authors: Rice, Malena; Wang, Xian-Yu; Wang, Songhu; Shporer, Avi; Barkaoui, Khalid; Brahm, Rafael; Collins, Karen A.; Jordán, Andrés; Lowson, Nataliea; Butler, R. Paul; Crane, Jeffrey D.; Shectman, Stephen; Teske, Johanna K.; Osip, David; Collins, Kevin I.; Murgas, Felipe; Boyle, Gavin; Pozuelos, Francisco J.; Timmermans, Mathilde; Jehin, Emmanuel; Gillon, MichaëlThe geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that near-resonant systems have likely experienced minimal dynamical disruptions, the spin-orbit orientations of these systems inform the typical outcomes of quiescent planet formation, as well as the primordial stellar obliquity distribution. However, few measurements have been made to constrain the spin-orbit orientations of near-resonant systems. We present a Rossiter-McLaughlin measurement of the near-resonant warm Jupiter TOI-2202 b, obtained using the Carnegie Planet Finder Spectrograph on the 6.5 m Magellan Clay Telescope. This is the eighth result from the Stellar Obliquities in Long-period Exoplanet Systems survey. We derive a sky-projected 2D spin-orbit angle λ = 26 − 15 + 12 ° and a 3D spin-orbit angle ψ = 31 − 11 + 13 ° , finding that TOI-2202 b—the most massive near-resonant exoplanet with a 3D spin-orbit constraint to date—likely deviates from exact alignment with the host star’s equator. Incorporating the full census of spin-orbit measurements for near-resonant systems, we demonstrate that the current set of near-resonant systems with period ratios P /P ≲ 4 is generally consistent with a quiescent formation pathway, with some room for low-level (≲20°) protoplanetary disk misalignments or post-disk-dispersal spin-orbit excitation. Our result constitutes the first population-wide analysis of spin-orbit geometries for near-resonant planetary systems. © 2023. The Author(s). Published by the American Astronomical Society.We thank the anonymous referee for their valuable feedback on this manuscript. We thank Chelsea Huang for the support in organizing observations for this work. M.R. and S.W. thank the Heising-Simons Foundation for their generous support. M.R. acknowledges support from Heising-Simons Foundation Grant #2023-4478, as well as the 51 Pegasi b Fellowship Program. This paper includes data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. A.J. acknowledges support from ANID-Millennium Science Initiative-ICN12_009 and FONDECYT project 1210718. R.B. acknowledges support from FONDECYT project 11200751 and additional support from ANID-Millennium Science Initiative-ICN12_009
Mutual interference of myotonia and muscular dystrophy in the mouse: A study on ADR-MDX double mutants
No full textHeimann P, Augustin M, Wieneke S, Heising S, Jockusch H. Mutual interference of myotonia and muscular dystrophy in the mouse: A study on ADR-MDX double mutants. Neuromuscular disorders. 1998;8(8):551-560.For Duchenne muscular dystrophy (DMD, dystrophin deficiency) and Thomsen/Becker myotonia (muscular chloride channel deficiency) genetically homologous mouse models are available, the dystrophin-deficient MDX mouse and the myotonic ADR mouse. Whereas the latter shows more severe symptoms than human myotonia patients, the MDX mouse, in contrast to DMD patients, is only mildly affected. We have introduced, by appropriate breeding, the defect leading to myotonia (Clc1 null mutation, ndr allele) into MDX mice, thus creating ADR-MDX double mutants. The expectation was that, due to mechanical stress during myotonic cramps, the ADR status should symptomatically aggravate the muscle fibre necrosis caused by the dystrophin deficiency. The overall symptoms of the double mutants were dominated by myotonia. Weight reduction and premature death rate were higher in ADR-MDX than in ADR mice. Sarcolemmal ruptures as indicated by influx into muscle fibres of serum globulins and injected Evans blue were found with great inter-individual variation in MDX and in ADR-MDX muscles. Affected fibres were found mainly in large groups in MDX but single or in small clusters in ADR-MDX leg muscles. The symptoms of myotonia (aftercontractions, shift towards oxidative fibres) were less pronounced in ADR-MDX than in ADR muscles. Conversely, numbers of damaged fibres as well as the percentage of central nuclei (an indicator of fibre regeneration) were significantly lower in ADR-MDX than in MDX skeletal muscles. Thus it appears that, at the level of the muscle fibre, myotonia and muscular dystrophy attenuate each other. (C) 1998 Elsevier Science B.V. All rights reserved
O KŁAMSTWIE, KŁAMSTWIE I KŁAMSTWIE. MEANDRY PA-MIĘCI W KAMIENIU MARIUSA VON MAYENBURGA
No full textThe author of this article analyses The Stone, a play by Marius von Mayenburg, a renowned and highly acclaimed German playwright, dramatist and director. He perceives this work as a reckoning with Germany’s national so-cialist past. Through the prism of three generations of the Heising family, Mayenburg exposes the mechanisms at work in the creation of a family legend (“we are decent people; we were never Nazis; we helped the Jewish people”), which turns out to be merely a product of distortion and misrepresentation of historical truth, and an attempt to avert the blame
O KŁAMSTWIE, KŁAMSTWIE I KŁAMSTWIE. MEANDRY PA-MIĘCI W KAMIENIU MARIUSA VON MAYENBURGA
No full textThe author of this article analyses The Stone, a play by Marius von Mayenburg, a renowned and highly acclaimed German playwright, dramatist and director. He perceives this work as a reckoning with Germany’s national so-cialist past. Through the prism of three generations of the Heising family, Mayenburg exposes the mechanisms at work in the creation of a family legend (“we are decent people; we were never Nazis; we helped the Jewish people”), which turns out to be merely a product of distortion and misrepresentation of historical truth, and an attempt to avert the blame
Limites inter Provincias – Ein internationales Forschungsprojekt zum Grenzverlauf zwischen den römischen Provinzen Germania Superior und Raetia
No full textThe JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. III. Aperture Masking Interferometric Observations of the Star HIP 65426 at 3.8μm
No full textRay, Shrishmoy et al.-- Full list of authors: Ray, Shrishmoy; Sallum, Steph; Hinkley, Sasha; Sivaramkrishnan, Anand; Cooper, Rachel; Kammerer, Jens; Greebaum, Alexandra Z.; Thatte, Deeparshi; Stolker, Tomas; Lazzoni, Cecilia; Tokovinin, Andrei; de Furio, Matthew; Factor, Samuel; Meyer, Michael; Stone, Jordan M.; Carter, Aarynn; Biller, Beth; Skemer, Andrew; Suárez, Genaro; Leisenring, Jarron M.; Perrin, Marshall D.; Kraus, Adam L.; Absil, Olivier; Balmer, William O.; Boccaletti, Anthony; Bonavita, Mariangela; Bonnefoy, Mickael; Booth, Mark; Bowler, Brendan P.; Briesemeister, Zackery W.; Bryan, Marta L.; Calissendorff, Per; Cantalloube, Faustine; Chauvin, Gael; Chen, Christine H.; Choquet, Elodie; Christiaens, Valentin; Cugno, Gabriele; Currie, Thayne; Danielski, Camilla; Dupuy, Trent J.; Faherty, Jacqueline K.; Fitzgerald, Michael P.; Fortney, Jonathan J.; Franson, Kyle; Girard, Julien H.; Grady, Carol A.; Gonzales, Eileen C.; Henning, Thomas; Hines, Dean C.; Hoch, Kielan K. W.; Hood, Callie E.; Howe, Alex R.; Janson, Markus; Kalas, Paul; Kennedy, Grant M.; Kenworthy, Matthew A.; Kervella, Pierre; Kuzuhara, Masayuki; Lagrange, Anne-Marie; Lagage, Pierre-Olivier; Lawson, Kellen; Lew, Ben W. P.; Liu, Michael C.; Liu, Pengyu; Llop-Sayson, Jorge; Lloyd, James P.; Macintosh, Bruce; Marino, Sebastian; Marley, Mark S.; Marois, Christian; Martinez, Raquel A.; Matthews, Brenda C.; Matthews, Elisabeth C.; Mawet, Dimitri; Mazoyer, Johan; McElwain, Michael W.; Metchev, Stanimir; Meyer, Michael R.; Miles, Brittany E.; Millar-Blanchaer, Maxwell A.; Molliere, Paul; Moran, Sarah E.; Morley, Caroline V.; Mukherjee, Sagnick; Palma-Bifani, Paulina; Pantin, Eric; Patapis, Polychronis; Petrus, Simon; Pueyo, Laurent; Quanz, Sascha P.; Quirrenbach, Andreas; Rebollido, Isabel; Adams Redai, Jea; Ren, Bin B.; Rickman, Emily; Samland, Matthias; Schlieder, Joshua E.; Schneider, Glenn; Stapelfeldt, Karl R.; Tamura, Motohide; Tan, Xianyu; Uyama, Taichi; Vigan, Arthur; Vasist, Malavika; Vos, Johanna M.; Wagner, Kevin; Wang, Jason J.; Ward-Duong, Kimberly; Whiteford, Niall; Wolff, Schuyler G.; Worthen, Kadin; Wyatt, Mark C.; Ygouf, Marie; Zhang, Xi; Zhang, Keming; Zhang, Zhoujian; Zhou, Yifan; Zurlo, Alice; Sargent, B. A.; Theissen, Christopher A.; Manjavacas, Elena; Lueber, Anna; Kitzmann, Daniel; Sutlieff, Ben J.; Betti, Sarah K.We present aperture masking interferometry (AMI) observations of the star HIP 65426 at 3.8 μm, as part of the JWST Direct Imaging Early Release Science program, obtained using the Near Infrared Imager and Slitless Spectrograph instrument. This mode provides access to very small inner working angles (even separations slightly below the Michelson limit of 0.5λ/D for an interferometer), which are inaccessible with the classical inner working angles of the JWST coronagraphs. When combined with JWST's unprecedented infrared sensitivity, this mode has the potential to probe a new portion of parameter space across a wide array of astronomical observations. Using this mode, we are able to achieve a 5σ contrast of ΔmF380M ∼ 7.62 ± 0.13 mag relative to the host star at separations ≳0
07, and the contrast deteriorates steeply at separations ≲0
07. However, we detect no additional companions interior to the known companion HIP 65426b (at separation ∼0
82 or
). Our observations thus rule out companions more massive than 10–12 MJup at separations ∼10–20 au from HIP 65426, a region out of reach of ground- or space-based coronagraphic imaging. These observations confirm that the AMI mode on JWST is sensitive to planetary mass companions at close-in separations (≳0
07), even for thousands of more distant stars at ∼100 pc, in addition to the stars in the nearby young moving groups and associations, as stated in previous works. This result will allow the planning and successful execution of future observations to probe the inner regions of nearby stellar systems, opening an essentially unexplored parameter space. © 2025. The Author(s).This work is based on observations made with the NASA/
ESA/CSA JWST and obtained from the Mikulski Archive for
Space Telescopes at the Space Telescope Science Institute. The
specific observations analyzed can be accessed via 10.17909/
8by2-x206. We are truly grateful for the countless hours that
thousands of people have devoted to the design, construction,
and commissioning of JWST. We thank the anonymous referee
for comments that have been crucial toward the improvement
of this Letter. This project was supported by a grant from
STScI (JWST-ERS-01386) under NASA contract NAS5-
03127. S.R. was supported by the Global Excellence Award
at the University of Exeter. This work is based in part on
observations obtained at the Southern Astrophysical Research
(SOAR) telescope, which is a joint project of the Ministério da
Ciência, Tecnologia e Inovações (MCTI/LNA) of Brasil, the
US National Science Foundation’s NOIRLab, the University of
North Carolina at Chapel Hill (UNC), and Michigan State
University (MSU). This work has also made use of the
SPHERE Data Centre, jointly operated by OSUG/IPAG
(Grenoble), PYTHEAS/LAM/CeSAM (Marseille), OCA/
Lagrange (Nice), Observatoire de Paris/LESIA (Paris), and
Observatoire de Lyon/CRAL, as well as being supported by a
grant from Labex OSUG@2020 (Investissements d’avenir—
ANR10 LABX56). This work has benefited from the 2022
Exoplanet Summer Program in the Other Worlds Laboratory
(OWL) at the University of California, Santa Cruz, a program
funded by the Heising–Simons Foundation.Peer reviewe
O kłamstwie, kłamstwie i kłamstwie. Meandry pamięci w Kamieniu Mariusa von Mayenburga
No full textThe author of this article analyses The Stone, a play by Marius von Mayenburg, a renowned and highly acclaimed German playwright, dramatist and director. He perceives this work as a reckoning with Germany’s national so-cialist past. Through the prism of three generations of the Heising family, Mayenburg exposes the mechanisms at work in the creation of a family legend (“we are decent people; we were never Nazis; we helped the Jewish people”), which turns out to be merely a product of distortion and misrepresentation of historical truth, and an attempt to avert the blame
The Optical Corrector for the Dark Energy Spectroscopic Instrument
No full textMiller, Timothy N. et al.-- Full list of authors: Miller, Timothy N.; Doel, Peter; Gutierrez, Gaston; Besuner, Robert; Brooks, David; Gallo, Giuseppe; Heetderks, Henry; Jelinsky, Patrick; Kent, Stephen M.; Lampton, Michael; Levi, Michael E.; Liang, Ming; Meisner, Aaron; Sholl, Michael J.; Silber, Joseph Harry; Sprayberry, David; Aguilar, Jessica Nicole; de la Macorra, Axel; Eisenstein, Daniel; Fanning, Kevin; Font-Ribera, Andreu; Gaztañaga, Enrique; Gontcho A Gontcho, Satya; Honscheid, Klaus; Jimenez, Jorge; Joyce, Dick; Kehoe, Robert; Kisner, Theodore; Kremin, Anthony; Landriau, Martin; Le Guillou, Laurent; Magneville, Christophe; Martini, Paul; Miquel, Ramon; Moustakas, John; Nie, Jundan; Percival, Will; Poppett, Claire; Prada, Francisco; Rossi, Graziano; Schlegel, David; Schubnell, Michael; Seo, Hee-Jong; Sharples, Ray; Tarlé, Gregory; Vargas-Magaña, Mariana; Zhou, Zhimin; the DESI CollaborationThe Dark Energy Spectroscopic Instrument (DESI) is currently measuring the spectra of 40 million galaxies and quasars, the largest such survey ever made to probe the nature of cosmological dark energy. The 4 m Mayall telescope at Kitt Peak National Observatory has been adapted for DESI, including the construction of a 3°.2 diameter prime focus corrector that focuses astronomical light onto a 0.8 m diameter focal surface with excellent image quality over the DESI bandpass of 360–980 nm. The wide-field corrector includes six lenses, as large as 1.1 m in diameter and as heavy as 237 kilograms, including two counterrotating wedged lenses that correct for atmospheric dispersion over zenith angles from 0° to 60°. The lenses, cells, and barrel assembly all meet precise alignment tolerances on the order of tens of microns. The barrel alignment is maintained throughout a range of observing angles and temperature excursions in the Mayall dome by use of a hexapod, which is itself supported by a new cage, ring, and truss structure. In this paper we describe the design, fabrication, and performance of the new corrector and associated structure, focusing on how they meet DESI requirements. In particular, we describe the prescription and specifications of the lenses, design choices and error budgeting of the barrel assembly, stray light mitigations, and integration and test at the Mayall telescope. We conclude with some validation highlights that demonstrate the successful corrector on-sky performance, and we list some lessons learned during the multiyear fabrication phase. © 2024. The Author(s).The DESI Collaboration acknowledges the many insightful and creative contributions of the author Michael Lampton and mourns his passing.
The authors wish to thank Marty Valente and Jim Burge (Arizona Optical Systems), David Anderson and Vilma Anderson (Rayleigh Optical Corporation), and George Gardopee and Andrew Clarkson (L3 Brashear) for their helpful review of the lens polishing sections. We also wish to thank Dr. Charles Kennemore III (Viavi Solutions) for his extensive documentation of the coating work that supported this paper.
The DESI Collaboration appreciates Trish Dobson and American Cargoservice Inc. for managing the extensive logistics required to transport the corrector barrel sections safely from the United Kingdom to Kitt Peak by air and truck.
The authors acknowledge the support of the Gordon and Betty Moore Foundation, grant No. 3581, and the Heising-Simons Foundation, grant No. 2014-91, for their help in procuring long-lead components that enabled the corrector to meet its schedule.
Authors P.D. and D.B. acknowledge the support of the UK Science and Technology Facilities Council (STFC), grant No. ST/M00287X/1. The FNAL authors acknowledge support from Fermi Research Alliance, LLC (FRA), acting under contract No. DE-AC02-07CH11359 with the US Department of Energy.
This material is based on work supported by the US Department of Energy (DOE), Office of Science, Office of High-Energy Physics, under contract No. DE-AC02-05CH11231, and by the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility, under the same contract. Additional support for DESI was provided by the US National Science Foundation (NSF), Division of Astronomical Sciences, under contract No. AST-0950945 to the NSF's National Optical-Infrared Astronomy Research Laboratory; the Science and Technologies Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising-Simons Foundation; the French Alternative Energies and Atomic Energy Commission (CEA); the National Council of Humanities, Science and Technology of Mexico (CONAHCYT); the Ministry of Science and Innovation of Spain (MICINN); and the DESI Member Institutions: https://www.desi.lbl.gov/collaborating-institutions. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the US National Science Foundation, the US Department of Energy, or any of the listed funding agencies.
The authors are honored to be permitted to conduct scientific research on Iolkam Du'ag (Kitt Peak), a mountain with particular significance to the Tohono O'odham Nation.
For more information, visit https://desi.lbl.gov.
Facility: Mayall (DESI)
Recommended from our members
Extending Ultra-Diffuse Galaxy abundances to Milky Way analogues
No full textWe extend the Ultra-Diffuse Galaxy (UDG) abundance relation, NUDG − M200, to lower halo mass hosts (M200∼1011.6−12.2M⊙). We select UDG satellites from published catalogues of dwarf satellite galaxies around Milky Way analogues, namely the Exploration of Local Volume Satellites (ELVES) survey, the Satellite Around Galactic Analogs (SAGA) survey, and a survey of Milky Way-like systems conducted using the Hyper-Suprime Cam. Of the 516 satellites around a total of 75 Milky Way-like hosts, we find that 41 satellites around 33 hosts satisfy the UDG criteria. The distributions of host halo masses peak around M200∼1012M⊙
, independent of whether the host has a UDG satellite or not. We use literature UDG abundances and those derived here to trace the NUDG − M200 relation over three orders of magnitude down to M200=1011.6M⊙
and find the best-fitting linear relation of NUDG=(38±5)(M2001014)0.89± 0.04. This sub-linear slope is consistent with earlier studies of UDG abundances as well as abundance relations for brighter dwarf galaxies, excluding UDG-formation mechanisms that require high-density environments. However, we highlight the need for further homogeneous characterization of UDGs across a wide range of environments to properly understand the NUDG − M200 relation. © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.AK acknowledges financial support from the grant (SEV-2017-0709) funded by MCIN/AEI/ 10.13039/501100011033 and from the grant POSTDOC_21_00845 funded by the Economic Transformation, Industry, Knowledge and Universities Council of the Regional Government of Andalusia. This research made use of data from the SAGA Survey (sagasurvey.org). The SAGA Survey is a spectroscopic survey with data obtained from the Anglo-Australian Telescope, the MMT Observatory, and the Hale Telescope at Palomar Observatory. The SAGA survey made use of public imaging data from the Sloan Digital Sky Survey (SDSS), the DESI Legacy Imaging Surveys, and the Dark Energy Survey, and also public redshift catalogues from SDSS, GAMA, WiggleZ, 2dF, OzDES, 6dF, 2dFLenS, and LCRS. The SAGA survey was supported by NSF collaborative grants AST-1517148 and AST-1517422 and by Heising-Simons Foundation grant 2019-1402.With funding from the Spanish government through the "Severo Ochoa Centre of Excellence" accreditation (SEV-2017-0709).Peer reviewe
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