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The SDSS spectroscopic catalogue of white dwarf-main-sequence binaries : new identifications from DR 9–12
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Rebassa-Mansergas, A., Ren, J. J., Parsons, S. G., Gänsicke, B. T. (Boris T.), Schreiber, M. R., Garcia-Berro, E., Liu, X.-W. and Koester, D. (2016) The SDSS spectroscopic catalogue of white dwarf-main-sequence binaries : new identifications from DR 9–12. Monthly Notices of the Royal Astronomical Society, 458 (4). pp. 3808-3819. doi:10.1093/mnras/stw554 ISSN 0035-8711.
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Official URL: http://dx.doi.org/10.1093/mnras/stw554
Abstract
We present an updated version of the spectroscopic catalogue of white dwarf-main-sequence (WDMS) binaries from the Sloan Digital Sky Survey (SDSS). We identify 938 WDMS binaries within the data releases (DR) 9–12 of SDSS plus 40 objects from DR 1–8 that we missed in our previous works, 646 of which are new. The total number of spectroscopic SDSS WDMS binaries increases to 3294. This is by far the largest and most homogeneous sample of compact binaries currently available. We use a decomposition/fitting routine to derive the stellar parameters of all systems identified here (white dwarf effective temperatures, surface gravities and masses, and secondary star spectral types). The analysis of the corresponding stellar parameter distributions shows that the SDSS WDMS binary population is seriously affected by selection effects. We also measure the Na I λλ 8183.27, 8194.81 absorption doublet and H α emission radial velocities (RV) from all SDSS WDMS binary spectra identified in this work. 98 objects are found to display RV variations, 62 of which are new. The RV data are sufficient enough to estimate the orbital periods of three close binaries.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Library of Congress Subject Headings (LCSH): | White dwarf stars, Mass loss (Astrophysics), Double stars | ||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||||||
Publisher: | Oxford University Press | ||||||||
ISSN: | 0035-8711 | ||||||||
Official Date: | 8 March 2016 | ||||||||
Dates: |
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Volume: | 458 | ||||||||
Number: | 4 | ||||||||
Page Range: | pp. 3808-3819 | ||||||||
DOI: | 10.1093/mnras/stw554 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 14 March 2017 | ||||||||
Date of first compliant Open Access: | 14 March 2017 | ||||||||
Funder: | Spain. Ministerio de Economía y Competitividad [Ministry of Economy and Competitiveness] (MINECO), L'Agència de Gestió d'Ajuts Universitaris i de Recerca (AGAUR), Seventh Framework Programme (European Commission) (FP7), European Research Council (ERC), Millennium Science Initiative, Chile. Ministerio de Economía, Fondo Nacional de Desarrollo Científico y Tecnológico (Chile) (FONDECYT), Zhōngguó zhèjiāng shěng zìrán kēxué jījīn (China) [Zhejiang Provincial Natural Science Foundation of China] (ZPNSFC), Alfred P. Sloan Foundation, National Science Foundation (U.S.) (NSF), United States. Department of Energy. Office of Science | ||||||||
Grant number: | AYA2014-59084-P (MINECO), FP/2007-2013 (FP7), 320964 (ERC), 1141269 (FONDECYT), 3140585 (FONDECYT), 2014CB845700 (ZPNSFC), Nucleus P10-022-F (Chile. Ministerio de Economía) |
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