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The pulsations of PG 1351+489

dc.contributor.authorRedaelli, Mauríciopt_BR
dc.contributor.authorKepler, Souza Oliveirapt_BR
dc.contributor.authorCosta, Jose Eduardo da Silveirapt_BR
dc.contributor.authorWinget, Donald Earlpt_BR
dc.contributor.authorHandler, Geraldpt_BR
dc.contributor.authorCastanheira, Bárbara Garciapt_BR
dc.contributor.authorKanaan Neto, Antonio Nemerpt_BR
dc.contributor.authorFraga, Lucianopt_BR
dc.contributor.authorHenrique, P.pt_BR
dc.contributor.authorGiovannini Junior, Odilonpt_BR
dc.contributor.authorProvencal, Judith L.pt_BR
dc.contributor.authorShipman, Harry L.pt_BR
dc.contributor.authorDalessio, J.pt_BR
dc.contributor.authorThompson, S. E.pt_BR
dc.contributor.authorMullally, Fergalpt_BR
dc.contributor.authorBrewer, M. M.pt_BR
dc.contributor.authorChilders, D.pt_BR
dc.contributor.authorOksala, M. E.pt_BR
dc.contributor.authorRosen, Rachelpt_BR
dc.contributor.authorWood, Matthew A.pt_BR
dc.contributor.authorReed, M. D.pt_BR
dc.contributor.authorWalter, B.pt_BR
dc.contributor.authorStrickland, Williept_BR
dc.contributor.authorChandler, Dean W.pt_BR
dc.contributor.authorWatson, Todd K.pt_BR
dc.contributor.authorNather, R. Edwardpt_BR
dc.contributor.authorMontgomery, Michael Houstonpt_BR
dc.contributor.authorBischoff-Kim, Agnèspt_BR
dc.contributor.authorHansen, Carl J.pt_BR
dc.contributor.authorNitta, Atsukopt_BR
dc.contributor.authorKleinman, Scot Jamespt_BR
dc.contributor.authorClaver, C.F.pt_BR
dc.contributor.authorBrown, Timpt_BR
dc.contributor.authorSullivan, Denis J.pt_BR
dc.contributor.authorKim, Seung-Leept_BR
dc.contributor.authorChen, Wen-Pingpt_BR
dc.contributor.authorYang, M.pt_BR
dc.contributor.authorShih, Chia-Youpt_BR
dc.contributor.authorZhang, Xpt_BR
dc.contributor.authorJiang, Xiaojunpt_BR
dc.contributor.authorFu, Jianning Ningpt_BR
dc.contributor.authorSeetha, S.pt_BR
dc.contributor.authorAshoka, B.N.pt_BR
dc.contributor.authorMarar, T.M. Krishnanpt_BR
dc.contributor.authorBaliyan, Kiran S.pt_BR
dc.contributor.authorVats, Hari Ompt_BR
dc.contributor.authorChernyshev, A.V.pt_BR
dc.contributor.authorIbbetson, Peter A.pt_BR
dc.contributor.authorLeibowitz, Elia M.pt_BR
dc.contributor.authorHemar, Shirleypt_BR
dc.contributor.authorSergeev, A.pt_BR
dc.contributor.authorAndreev, M.pt_BR
dc.contributor.authorJanulis, Rimvydaspt_BR
dc.contributor.authorMeistas, Edmundas G.pt_BR
dc.contributor.authorMoskalik, Pawelpt_BR
dc.contributor.authorPajdosz, Gabrielpt_BR
dc.contributor.authorBaran, Andrzejpt_BR
dc.contributor.authorWiniarski, M.pt_BR
dc.contributor.authorZola, Staszekpt_BR
dc.contributor.authorOgloza, Waldemarpt_BR
dc.contributor.authorSiwak, Michalpt_BR
dc.contributor.authorBognár, Zsófiapt_BR
dc.contributor.authorSolheim, Jan-Ericpt_BR
dc.contributor.authorSefako, R.pt_BR
dc.contributor.authorBuckley, David A.H.pt_BR
dc.contributor.authorO'Donoghue, Darraghpt_BR
dc.contributor.authorNagel, Thorstenpt_BR
dc.contributor.authorSilvotti, Robertopt_BR
dc.contributor.authorBruni, I.pt_BR
dc.contributor.authorFremy, J. R.pt_BR
dc.contributor.authorVauclair, Gérardpt_BR
dc.contributor.authorChevreton, Michelpt_BR
dc.contributor.authorDolez, Noëlpt_BR
dc.contributor.authorPfeiffer, Benpt_BR
dc.contributor.authorBarstow, Martin A.pt_BR
dc.contributor.authorCreevey, opt_BR
dc.contributor.authorKawaler, Steven D.pt_BR
dc.contributor.authorClemens, J. Christopherpt_BR
dc.date.accessioned2014-04-13T01:49:53Zpt_BR
dc.date.issued2011pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/93362pt_BR
dc.description.abstractPG 1351+489 is one of the 20DBVs – pulsating helium-atmospherewhite dwarf stars – known and has the simplest power spectrum for this class of star, making it a good candidate to study cooling rates. We report accurate period determinations for the main peak at 489.334 48 s and two other normal modes using data from the Whole Earth Telescope (WET) observations of 1995 and 2009. In 2009, we detected a new pulsation mode and the main pulsation mode exhibited substantial change in its amplitude compared to all previous observations. We were able to estimate the star’s rotation period, of 8.9 h, and discuss a possible determination of the rate of period change of (2.0 ± 0.9) × 10−13 s s-ˡ, the first such estimate for a DBV.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 415, no. 2 (Aug. 2011), p. 1220-1227pt_BR
dc.rightsOpen Accessen
dc.subjectAnãs brancaspt_BR
dc.subjectStars: evolutionen
dc.subjectStars: individual: PG 1351+489en
dc.subjectEvolucao estelarpt_BR
dc.subjectOscilacoespt_BR
dc.subjectStars: oscillationsen
dc.subjectWhite dwarfsen
dc.titleThe pulsations of PG 1351+489pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000816495pt_BR
dc.type.originEstrangeiropt_BR


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