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Multiband photometry and spectroscopy of an all-sky sample of bright white dwarfs

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Raddi, R., Gentile Fusillo, N. P., Pala, Anna F., Hermes, J. J., Gänsicke, B. T. (Boris T.), Chote, Paul, Hollands, Mark A., Henden, A., Catalán, S., Geier, S., Koester, D., Munari, U., Napiwotzki, R. and Tremblay, Pier-Emmanuel (2017) Multiband photometry and spectroscopy of an all-sky sample of bright white dwarfs. Monthly Notices of the Royal Astronomical Society, 472 (4). pp. 4173-4192. doi:10.1093/mnras/stx2243

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Official URL: http://dx.doi.org/10.1093/mnras/stx2243

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Abstract

The upcoming NASA Transiting Exoplanet Survey Satellite (TESS) will obtain space-based uninterrupted light curves for a large sample of bright white dwarfs distributed across the entire sky, providing a very rich resource for asteroseismological studies and the search for transits from planetary debris. We have compiled an all-sky catalogue of ultraviolet, optical and infrared photometry as well as proper motions, which we propose as an essential tool for the preliminary identification and characterization of potential targets. We present data for 1864 known white dwarfs and 305 high-probability white dwarf candidates brighter than 17 mag. We describe the spectroscopic follow-up of 135 stars, of which 82 are white dwarfs and 25 are hot subdwarfs. The new confirmed stars include six pulsating white dwarf candidates (ZZ Cetis), and nine white dwarf binaries with a cool main-sequence companion. We identify one star with a spectroscopic distance of only 25 pc from the Sun. Around the time TESS is launched, we foresee that all white dwarfs in this sample will have trigonometric parallaxes measured by the ESA Gaia mission next year.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): White dwarf stars
Journal or Publication Title: Monthly Notices of the Royal Astronomical Society
Publisher: Oxford University Press
ISSN: 0035-8711
Official Date: 4 September 2017
Dates:
DateEvent
4 September 2017Published
28 August 2017Accepted
Volume: 472
Number: 4
Page Range: pp. 4173-4192
DOI: 10.1093/mnras/stx2243
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
NAS5-26555National Aeronautics and Space Administrationhttp://dx.doi.org/10.13039/100000104
NNX09AF08GNational Aeronautics and Space Administrationhttp://dx.doi.org/10.13039/100000104
AyA2011-2Ministerio de Ciencia e Innovaciónhttp://dx.doi.org/10.13039/501100004837
ID 093.D-0431European Southern Observatoryhttp://dx.doi.org/10.13039/501100004604
FP/2007-2013)/ERC Grant Agreement no. 320964 (WDTracer)Seventh Framework Programmehttp://dx.doi.org/10.13039/501100004963
Hubble Fellowship grant #HST-HF2-51357.001- ANational Aeronautics and Space Administrationhttp://dx.doi.org/10.13039/100000104
UNSPECIFIEDRobert Martin Ayers Sciences FundUNSPECIFIED
UNSPECIFIEDU.S. GovernmentUNSPECIFIED
UNSPECIFIEDRoyal Greenwich Observatory Isaac Newton Group of Telescopes (Santa Cruz de la Palma, Canary Islands)UNSPECIFIED
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