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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
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 | ||||||||||||||||||||||||||||||
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| 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: |
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| Date of first compliant deposit: | 20 November 2017 | ||||||||||||||||||||||||||||||
| 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: |
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