Discovery of A ZZ Ceti in the Kepler Mission Field

dc.contributor.utaustinauthorHermes, J. J.en_US
dc.contributor.utaustinauthorWinget, D. E.en_US
dc.creatorHermes, J. J.en_US
dc.creatorMullally, Fergalen_US
dc.creatorOstensen, R. H.en_US
dc.creatorWilliams, Kurtis A.en_US
dc.creatorTelting, Johnen_US
dc.creatorSouthworth, Johnen_US
dc.creatorBloemen, S.en_US
dc.creatorHowell, Steve B.en_US
dc.creatorEverett, Marken_US
dc.creatorWinget, D. E.en_US
dc.date.accessioned2016-10-28T19:37:39Z
dc.date.available2016-10-28T19:37:39Z
dc.date.issued2011-11en_US
dc.description.abstractWe report the discovery of the first identified pulsating DA white dwarf, WD J1916+3938 (Kepler ID 4552982), in the field of the Kepler mission. This ZZ Ceti star was first identified through ground-based, time-series photometry, and follow-up spectroscopy confirms that it is a hydrogen-atmosphere white dwarf with T(eff) = 11,129 +/- 115 K and log g = 8.34 +/- 0.06, placing it within the empirical ZZ Ceti instability strip. The object shows up to 0.5% amplitude variability at several periods between 800 and 1450 s. Extended Kepler observations of WD J1916+3938 could yield the best light curve, to date, of any pulsating white dwarf, allowing us to directly study the interior of an evolved object representative of the fate of the majority of stars in our Galaxy.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipNorman Hackerman Advanced Research Program 003658-0255-2007, 003658-0252-2009en_US
dc.description.sponsorshipNASA NAG5-13094en_US
dc.description.sponsorshipNational Science Foundation AST-0909107en_US
dc.description.sponsorshipEuropean Research Council under the European Community 227224en_US
dc.description.sponsorshipResearch Council of K.U. Leuven GOA/2008/04en_US
dc.identifierdoi:10.15781/T2T43J559
dc.identifier.citationHermes, J. J., Fergal Mullally, R. H. Østensen, Kurtis A. Williams, John Telting, John Southworth, Steven Bloemen, Steve B. Howell, Mark Everett, and D. E. Winget. "Discovery of a ZZ Ceti in the Kepler mission field." The Astrophysical Journal Letters, Vol.741, No. 1 (Nov., 2011): L16.en_US
dc.identifier.doi10.1088/2041-8205/741/1/l16en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/2152/43077
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journal Lettersen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectstars: individual (wd j191643.83+393849.7)en_US
dc.subjectstars: oscillationsen_US
dc.subjectstars:en_US
dc.subjectvariables: generalen_US
dc.subjectwhite dwarfsen_US
dc.subjectda white-dwarfsen_US
dc.subjectwhole earth telescopeen_US
dc.subjectinstability stripen_US
dc.subjectcompacten_US
dc.subjectpulsatorsen_US
dc.subjectlight-curveen_US
dc.subjectsky-surveyen_US
dc.subjectstarsen_US
dc.subjectcatalogen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleDiscovery of A ZZ Ceti in the Kepler Mission Fielden_US
dc.typeArticleen_US

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