The ZZ Ceti Red Edge

dc.contributor.utaustinauthorWinget, D. E.en_US
dc.creatorKanaan, A.en_US
dc.creatorKepler, S. O.en_US
dc.creatorWinget, D. E.en_US
dc.date.accessioned2016-04-22T19:47:42Z
dc.date.available2016-04-22T19:47:42Z
dc.date.issued2002-06en
dc.description.abstractWith a time-series CCD photometric survey, we have demonstrated clearly that the observed red edge for the ZZ Ceti stars instability strip at 11 000 K is real, with the pulsation amplitude decreasing at least by a factor of 50. Previous surveys for variability among hydrogen atmosphere white dwarfs around 11 000 K have been carried out using time-series photoelectric photometry, not differential photometry, insensitive for small amplitude periodicities of 15 min and longer. In our survey we constantly monitor the sky brightness as well as one or more comparison stars through the same color filter, reducing the adverse effects of differential extinction and sky fluctuations, obtaining true differential photometry.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipChandra award GO3-14012en_US
dc.description.sponsorshipNASA NAS8-03060en_US
dc.description.sponsorshipAustrian Science Fund (FWF)en_US
dc.identifierdoi:10.15781/T2DF7X
dc.identifier.citationKanaan, Antonio, S. O. Kepler, and Don Earl Winget. >The ZZ Ceti red edge.> Astronomy & Astrophysics, Vol. 389, No. 3 (Jun., 2002): pp. 896-903.en_US
dc.identifier.doi10.1051/0004-6361:20020485en_US
dc.identifier.issn0004-6361en_US
dc.identifier.urihttp://hdl.handle.net/2152/34506
dc.language.isoEnglishen_US
dc.relation.ispartofserialAstronomy & Astrophysicsen_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.subjectstars : oscillationsen_US
dc.subjectstars : white dwarfsen_US
dc.subjectda white-dwarfsen_US
dc.subjectgravity modesen_US
dc.subjectinstability stripen_US
dc.subjectstarsen_US
dc.subjectpulsationsen_US
dc.subjectidentificationen_US
dc.subjectcoolen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleThe ZZ Ceti Red Edgeen_US
dc.typeArticleen_US

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