Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE
Asteroseismology has become widely accepted as a benchmark for accurate and precise fundamental stellar properties. It can therefore be used to validate and calibrate stellar parameters derived from other approaches. Meanwhile, one can leverage large-volume surveys in photometry, spectroscopy, and a...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal Supplement Series |
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| Online Access: | https://doi.org/10.3847/1538-4365/acabc8 |
| _version_ | 1797701421896826880 |
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| author | Jie Yu Shourya Khanna Nathalie Themessl Saskia Hekker Guillaume Dréau Laurent Gizon Shaolan Bi |
| author_facet | Jie Yu Shourya Khanna Nathalie Themessl Saskia Hekker Guillaume Dréau Laurent Gizon Shaolan Bi |
| author_sort | Jie Yu |
| collection | DOAJ |
| description | Asteroseismology has become widely accepted as a benchmark for accurate and precise fundamental stellar properties. It can therefore be used to validate and calibrate stellar parameters derived from other approaches. Meanwhile, one can leverage large-volume surveys in photometry, spectroscopy, and astrometry to infer stellar parameters over a wide range of evolutionary stages, independently of asteroseismology. Our pipeline, SEDEX ( https://github.com/Jieyu126/SEDEX ), compares the spectral energy distribution predicted by the MARCS and BOSZ model spectra with 32 photometric bandpasses, combining data from nine major, large-volume photometric surveys. We restrict the analysis to targets with available spectroscopy from the APOGEE, GALAH, and RAVE surveys to lift the temperature−extinction degeneracy. The cross-survey atmospheric parameter and uncertainty estimates are homogenized with artificial neural networks. Validation of our results with CHARA interferometry, Hubble Space Telescope CALSPEC spectrophotometry, and asteroseismology shows that we achieve high precision and accuracy. We present a catalog of improved interstellar extinction ( ${\sigma }_{{A}_{V}}\simeq $ 0.14 mag) and stellar radii ( σ _R / R ≃ 7.4%) for ∼1.5 million stars in the low-to-high-extinction ( A _V ≲ 6 mag) fields observed by the spectroscopic surveys. We derive global extinctions for 184 Gaia DR2 open clusters and confirm the differential extinction in NGC 6791 and NGC 6819, which have been subject to extensive asteroseismic analysis. Furthermore, we report 36,854 double-lined spectroscopic main-sequence binary candidates. This catalog will be valuable for providing constraints on detailed modeling of stars and for constructing 3D dust maps of the Kepler field, the TESS Continuous Viewing Zones, and the PLATO long-duration observation fields. |
| first_indexed | 2024-03-12T04:36:28Z |
| format | Article |
| id | doaj.art-d5c0c2b2a73a4c1a9355eec5e8ebb7fb |
| institution | Directory Open Access Journal |
| issn | 0067-0049 |
| language | English |
| last_indexed | 2024-03-12T04:36:28Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj.art-d5c0c2b2a73a4c1a9355eec5e8ebb7fb2023-09-03T09:56:17ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492023-01-0126424110.3847/1538-4365/acabc8Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVEJie Yu0https://orcid.org/0000-0002-0007-6211Shourya Khanna1https://orcid.org/0000-0002-2604-4277Nathalie Themessl2Saskia Hekker3https://orcid.org/0000-0002-1463-726XGuillaume Dréau4https://orcid.org/0000-0002-0135-8720Laurent Gizon5https://orcid.org/0000-0001-7696-8665Shaolan Bi6https://orcid.org/0000-0002-7642-7583Max-Planck-Institut für Sonnensystemforschung , Justus-von-Liebig-Weg 3, D-37077 Göttingen, Germany ; yujie@mps.mpg.deKapteyn Astronomical Institute, University of Groningen , Groningen, 9700 AV, The Netherlands; INAF—Osservatorio Astrofisico di Torino , via Osservatorio 20, I-10025 Pino Torinese (TO), ItalyLandessternwarte Königstuhl (LSW), Heidelberg University , Königstuhl 12, D-69117 Heidelberg, GermanyLandessternwarte Königstuhl (LSW), Heidelberg University , Königstuhl 12, D-69117 Heidelberg, Germany; Heidelberg Institute for Theoretical Studies (HITS) gGmbH , Schloss-Wolfsbrunnenweg 35, D-69118 Heidelberg, GermanyLESIA, Observatoire de Paris, PSL Research University , CNRS, Université Pierre et Marie Curie, Université Paris Diderot, F-92195 Meudon, FranceMax-Planck-Institut für Sonnensystemforschung , Justus-von-Liebig-Weg 3, D-37077 Göttingen, Germany ; yujie@mps.mpg.de; Institut für Astrophysik, Georg-August-Universität Göttingen , Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany; Center for Space Science, NYUAD Institute, New York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAEDepartment of Astronomy, Beijing Normal University , Beijing 100875, People's Republic of ChinaAsteroseismology has become widely accepted as a benchmark for accurate and precise fundamental stellar properties. It can therefore be used to validate and calibrate stellar parameters derived from other approaches. Meanwhile, one can leverage large-volume surveys in photometry, spectroscopy, and astrometry to infer stellar parameters over a wide range of evolutionary stages, independently of asteroseismology. Our pipeline, SEDEX ( https://github.com/Jieyu126/SEDEX ), compares the spectral energy distribution predicted by the MARCS and BOSZ model spectra with 32 photometric bandpasses, combining data from nine major, large-volume photometric surveys. We restrict the analysis to targets with available spectroscopy from the APOGEE, GALAH, and RAVE surveys to lift the temperature−extinction degeneracy. The cross-survey atmospheric parameter and uncertainty estimates are homogenized with artificial neural networks. Validation of our results with CHARA interferometry, Hubble Space Telescope CALSPEC spectrophotometry, and asteroseismology shows that we achieve high precision and accuracy. We present a catalog of improved interstellar extinction ( ${\sigma }_{{A}_{V}}\simeq $ 0.14 mag) and stellar radii ( σ _R / R ≃ 7.4%) for ∼1.5 million stars in the low-to-high-extinction ( A _V ≲ 6 mag) fields observed by the spectroscopic surveys. We derive global extinctions for 184 Gaia DR2 open clusters and confirm the differential extinction in NGC 6791 and NGC 6819, which have been subject to extensive asteroseismic analysis. Furthermore, we report 36,854 double-lined spectroscopic main-sequence binary candidates. This catalog will be valuable for providing constraints on detailed modeling of stars and for constructing 3D dust maps of the Kepler field, the TESS Continuous Viewing Zones, and the PLATO long-duration observation fields.https://doi.org/10.3847/1538-4365/acabc8Interstellar extinctionStellar propertiesAstronomical techniquesAB photometryPhotometrySpectral energy distribution |
| spellingShingle | Jie Yu Shourya Khanna Nathalie Themessl Saskia Hekker Guillaume Dréau Laurent Gizon Shaolan Bi Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE The Astrophysical Journal Supplement Series Interstellar extinction Stellar properties Astronomical techniques AB photometry Photometry Spectral energy distribution |
| title | Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE |
| title_full | Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE |
| title_fullStr | Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE |
| title_full_unstemmed | Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE |
| title_short | Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE |
| title_sort | revised extinctions and radii for 1 5 million stars observed by apogee galah and rave |
| topic | Interstellar extinction Stellar properties Astronomical techniques AB photometry Photometry Spectral energy distribution |
| url | https://doi.org/10.3847/1538-4365/acabc8 |
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