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The population of hot subdwarf stars studied with Gaia

  • In light of substantial new discoveries of hot subdwarfs by ongoing spectroscopic surveys and the availability of the Gaia mission Early Data Release 3 (EDR3), we compiled new releases of two catalogues of hot subluminous stars: the data release 3 (DR3) catalogue of the known hot subdwarf stars contains 6616 unique sources and provides multi-band photometry, and astrometry from Gaia EDR3 as well as classifications based on spectroscopy and colours. This is an increase of 742 objects over the DR2 catalogue. This new catalogue provides atmospheric parameters for 3087 stars and radial velocities for 2791 stars from the literature. In addition, we have updated the Gaia Data Release 2 (DR2) catalogue of hot subluminous stars using the improved accuracy of the Gaia EDR3 data set together with updated quality and selection criteria to produce the Gaia EDR3 catalogue of 61 585 hot subluminous stars, representing an increase of 21 785 objects. The improvements in Gaia EDR3 astrometry and photometry compared to Gaia DR2 have enabled us toIn light of substantial new discoveries of hot subdwarfs by ongoing spectroscopic surveys and the availability of the Gaia mission Early Data Release 3 (EDR3), we compiled new releases of two catalogues of hot subluminous stars: the data release 3 (DR3) catalogue of the known hot subdwarf stars contains 6616 unique sources and provides multi-band photometry, and astrometry from Gaia EDR3 as well as classifications based on spectroscopy and colours. This is an increase of 742 objects over the DR2 catalogue. This new catalogue provides atmospheric parameters for 3087 stars and radial velocities for 2791 stars from the literature. In addition, we have updated the Gaia Data Release 2 (DR2) catalogue of hot subluminous stars using the improved accuracy of the Gaia EDR3 data set together with updated quality and selection criteria to produce the Gaia EDR3 catalogue of 61 585 hot subluminous stars, representing an increase of 21 785 objects. The improvements in Gaia EDR3 astrometry and photometry compared to Gaia DR2 have enabled us to define more sophisticated selection functions. In particular, we improved hot subluminous star detection in the crowded regions of the Galactic plane as well as in the direction of the Magellanic Clouds by including sources with close apparent neighbours but with flux levels that dominate the neighbourhood.show moreshow less

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Author details:Richard CulpanORCiD, Stephan GeierORCiDGND, Nicole ReindlORCiDGND, Ingrid PelisoliORCiD, Nicola Pietro Gentile FusilloORCiDGND, Alina Vorontseva
DOI:https://doi.org/10.1051/0004-6361/202243337
ISSN:1432-0746
Title of parent work (English):Astronomy and astrophysics : an international weekly journal
Subtitle (English):IV. catalogues of hot subluminous stars based on Gaia EDR3
Publisher:EDP Sciences
Place of publishing:Les Ulis
Publication type:Article
Language:English
Date of first publication:2022/06/14
Publication year:2022
Release date:2024/04/11
Tag:Hertzsprung-Russell and C-M diagrams; binaries: general; catalogs; stars: horizontal-branch; subdwarfs
Volume:662
Article number:A40
Number of pages:19
Funding institution:UK's Science and Technology Facilities Council (STFC) [ST/T000406/1];; NASA [NAS526555, NAS5-98034]; NASA Office of Space Science [NNX13AC07G];; National Aeronautics and Space Administration; National Science; Foundation; Robert Martin Ayers Sciences Fund; National Aeronautics and; Space Administration [NAS5-26555]; Italian Council for Research in; Astronomy; European Southern Observatory; Space Telescope European; Coordinating Facility; International GEMINI project; European Space; Agency Astrophysics Division; VISTA Hemisphere Survey, ESO Program; [179.A-2010]; VISTA at the ESO Paranal Observatory [179.A-2004]; ESO; Telescopes at the La Silla Paranal Observatory [177.A 3011, 177.A-3016,; 177.A-3017, 177.A-3018]; NOVA; NWOM; Department of Physics & Astronomy; of the University of Padova; Department of Physics of Univ. Federico II; (Naples); Max Planck Institute for Astronomy, Heidelberg; Max Planck; Institute for Extraterrestrial Physics, Garching; Johns Hopkins; University; Durham University; University of Edinburgh; Queen's; University Belfast; Harvard-Smithsonian Center for Astrophysics; Las; Cumbres Observatory Global Telescope Network Incorporated; National; Central University of Taiwan; Space Telescope Science Institute;; National Aeronautics and Space Administration under Planetary Science; Division of the NASA Science Mission Directorate [NNX08AR22G]; National; Science Foundation [AST1238877]; University of Maryland; Eotvos Lorand; University (ELTE); Los Alamos National Laboratory; Gordon and Betty; Moore Foundation; ARC LIEF grant from the Australian Research Council; [LE130100104]; Australian National University; Swinburne University of; Technology; University of Queensland; University of Western Australia;; University of Melbourne; Curtin University of Technology; Monash; University; Australian Astronomical Observatory; Astronomy Australia; Limited (AAL); Australian Government through the Commonwealth's; Education Investment Fund (EIF); National Collaborative Research; Infrastructure Strategy (NCRIS); National eResearch Collaboration Tools; and Resources (NeCTAR); Australian National Data Service Projects; (ANDS); National Development and Reform Commission; Alfred P. Sloan; Foundation; U.S. Department of Energy; Japanese Monbukagakusho; Max; Planck Society; Higher Education Funding Council for England; American; Museum of Natural History; Astrophysical Institute Potsdam; University; of Basel; University of Cambridge; Case Western Reserve University;; University of Chicago; Drexel University; Fermilab; Institute for; Advanced Study; Japan Participation Group; Joint Institute for Nuclear; Astrophysics; Kavli Institute for Particle Astrophysics and Cosmology;; Korean Scientist Group; Chinese Academy of Sciences (LAMOST);; Max-Planck-Institute for Astronomy (MPIA); Max-Planck-Institute for; Astrophysics (MPA); New Mexico State University; Ohio State University;; University of Pittsburgh; University of Portsmouth; Princeton; University; United States Naval Observatory; University of Washington;; University of Arizona; Brazilian Participation Group; Brookhaven; National Laboratory; Carnegie Mellon University; University of Florida;; French Participation Group; German Participation Group; Harvard; University; Instituto de Astrofisica de Canarias; Michigan State/Notre; Dame/JINA Participation Group; Lawrence Berkeley National Laboratory;; Max Planck Institute for Astrophysics; Max Planck Institute for; Extraterrestrial Physics; New York University; Pennsylvania State; University; Spanish Participation Group; University of Tokyo; University; of Utah; Vanderbilt University; University of Virginia; Yale University;; U.S. Department of Energy Office of Science; Center for High Performance; Computing at the University of Utah; Carnegie Institution for Science;; Center for Astrophysics | Harvard Smithsonian; Chilean Participation; Group; Kavli Institute for the Physics and Mathematics of the Universe; (IPMU)/University of Tokyo; Korean Participation Group; Leibniz Institut; fur Astrophysik Potsdam (AIP); Max-Planck-Institut fur Astronomie (MPIA; Heidelberg); Max-Planck-Institut fur Astrophysik (MPA Garching);; Max-Planck-Institut fur Extraterrestrische Physik (MPE); National; Astronomical Observatories of China; University of Notre Dame;; Observatario Nacional/MCTI; Shanghai Astronomical Observatory; United; Kingdom Participation Group; Universidad Nacional Autonoma de Mexico;; University of Colorado Boulder; University of Oxford; University of; Wisconsin
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
DDC classification:5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Peer review:Referiert
Publishing method:Open Access / Bronze Open-Access
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