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White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 16
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Kepler, S O, Koester, Detlev, Pelisoli, Ingrid, Romero, Alejandra D. and Ourique, Gustavo (2021) White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 16. Monthly Notices of the Royal Astronomical Society, 507 (3). pp. 4646-4660. doi:10.1093/mnras/stab2411 ISSN 1745-3933.
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WRAP-White-dwarf-subdwarf-stars-Sloan-Digital-Sky-Survey-Data-Release-16-Pelisoli-2021.pdf - Published Version - Requires a PDF viewer. Download (2636Kb) | Preview |
Official URL: https://doi.org/10.1108/TLDR-06-2021-0014
Abstract
White dwarfs are the end state of the evolution of more than 97 per cent of all stars, and therefore carry information on the structure and evolution of the Galaxy through their luminosity function and initial-to-final mass relation. Examining the new spectra of all white or blue stars in the Sloan Digital Sky Survey Data Release 16, we report the spectral classification of 2410 stars, down to our identification cut-off of signal-to-noise ratio equal to three. We newly identify 1404 DAs, 189 DZs, 103 DCs, 12 DBs, and nine CVs. The remaining objects are a mix of carbon or L stars (dC/L), narrow-lined hydrogen-dominated stars (sdA), dwarf F stars, and P Cyg objects. As white dwarf stars were not targeted by SDSS DR16, the number of new discoveries is much smaller than in previous releases. We also report atmospheric parameters and masses for a subset consisting of 555 new DAs, 10 new DBs, and 85 DZs for spectra with signal-to-noise ratio larger than 10.
Item Type: | Journal Article | |||||||||||||||
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Subjects: | Q Science > QB Astronomy | |||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||
Library of Congress Subject Headings (LCSH): | White dwarf stars , Dwarf stars | |||||||||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | |||||||||||||||
Publisher: | Oxford University Press | |||||||||||||||
ISSN: | 1745-3933 | |||||||||||||||
Official Date: | November 2021 | |||||||||||||||
Dates: |
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Volume: | 507 | |||||||||||||||
Number: | 3 | |||||||||||||||
Page Range: | pp. 4646-4660 | |||||||||||||||
DOI: | 10.1093/mnras/stab2411 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Reuse Statement (publisher, data, author rights): | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2021 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | |||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
Date of first compliant deposit: | 26 October 2021 | |||||||||||||||
Date of first compliant Open Access: | 26 October 2021 | |||||||||||||||
RIOXX Funder/Project Grant: |
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