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Authordc.contributor.authorRebassa Mansergas, A. 
Authordc.contributor.authorNebot Gómez Morán, A. es_CL
Authordc.contributor.authorSchreiber, M. R. es_CL
Authordc.contributor.authorGänsicke, B. T. es_CL
Authordc.contributor.authorSchwope, A. es_CL
Authordc.contributor.authorGallardo, J. es_CL
Authordc.contributor.authorKoester, D. es_CL
Admission datedc.date.accessioned2012-06-28T14:13:36Z
Available datedc.date.available2012-06-28T14:13:36Z
Publication datedc.date.issued2012
Cita de ítemdc.identifier.citationMon. Not. R. Astron. Soc. 419, 806–816 (2012)es_CL
Identifierdc.identifier.otherdoi:10.1111/j.1365-2966.2011.19923.x
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/125660
General notedc.descriptionArtículo de publicación ISIes_CL
Abstractdc.description.abstractWe present an updated version of the spectroscopic white dwarf–main-sequence (WDMS) binary catalogue from the Sloan Digital Sky Survey (SDSS). 395 newsystems are serendipitous discoveries from the spectroscopic SDSS I/II Legacy targets. As part of SDSS Extension for Galactic Understanding and Exploration (SEGUE), we have carried out a dedicated and efficient (64 per cent success rate) search for WDMS binaries with a strong contribution of the companion star, which were under-represented by all previous surveys, identifying 251 additional systems. In total, our catalogue contains 2248 WDMS binaries, and includes, where available, magnitudes from the GALEX All Sky Survey in the ultraviolet and from the United Kingdom Infrared Telescope (UKIRT) Infrared Sky Survey (UKIDSS) in the nearinfrared. We also provide radial velocities of the companion stars, measured from the SDSS spectroscopy using the Na I λλ 8183.27, 8194.81 absorption doublet and/or the Hα emission. Using an updated version of our spectral decomposition/fitting technique we determine/update the white dwarf effective temperatures, surface gravities and masses, as well as the spectral type of the companion stars for the entire catalogue. Comparing the distributions of white dwarf mass, temperature and companion spectral type, we confirm that our SEGUE survey project has been successful in identifyingWDMSbinaries with cooler and more massive white dwarfs, as well as earlier spectral types found previously. Finally, we have developed a publicly available interactive online data base for spectroscopic SDSS WDMS binaries containing all available stellar parameters, radial velocities and magnitudes which we briefly describe.es_CL
Patrocinadordc.description.sponsorshipAR-M and MRS acknowledge financial support from Fondecyt in the form of grant numbers 3110049 and 1100782, respectively. ANG-M acknowledges support by the Centre National d’Etudes Spatial (CNES, ref. 60015).es_CL
Lenguagedc.language.isoenes_CL
Keywordsdc.subjectstars: AGB and post-AGBes_CL
Títulodc.titlePost-common envelope binaries from SDSS – XIV. The DR7 white dwarf–main-sequence binary cataloguees_CL
Document typedc.typeArtículo de revista


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