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dc.contributor.authorKepler, Souza Oliveirapt_BR
dc.contributor.authorNather, R. Edwardpt_BR
dc.contributor.authorWinget, Donald Earlpt_BR
dc.contributor.authorNitta, Atsukopt_BR
dc.contributor.authorKleinman, Scot Jamespt_BR
dc.contributor.authorMetcalfe, Travis S.pt_BR
dc.contributor.authorSekiguchi, Kazuhiropt_BR
dc.contributor.authorJiang, Xiaojunpt_BR
dc.contributor.authorSullivan, Denis J.pt_BR
dc.contributor.authorSullivan, Terrypt_BR
dc.contributor.authorJanulis, Rimvydaspt_BR
dc.contributor.authorMeistas, Edmundas G.pt_BR
dc.contributor.authorKalytis, Romualdaspt_BR
dc.contributor.authorKrzesinski, Jerzypt_BR
dc.contributor.authorOgloza, Waldemarpt_BR
dc.contributor.authorZola, Staszekpt_BR
dc.contributor.authorO'Donoghue, Darraghpt_BR
dc.contributor.authorRomero-Colmenero, Encarnipt_BR
dc.contributor.authorMartinez, Peterpt_BR
dc.contributor.authorDreizler, Stefanpt_BR
dc.contributor.authorDeetjen, Jochen L.pt_BR
dc.contributor.authorNagel, Thorstenpt_BR
dc.contributor.authorSchuh, Sonja L.pt_BR
dc.contributor.authorVauclair, Gérardpt_BR
dc.contributor.authorFu, Jianning Ningpt_BR
dc.contributor.authorChevreton, Michelpt_BR
dc.contributor.authorSolheim, Jan-Ericpt_BR
dc.contributor.authorGonzalez Perez, Jose Miguelpt_BR
dc.contributor.authorJohannessen, F.pt_BR
dc.contributor.authorKanaan Neto, Antonio Nemerpt_BR
dc.contributor.authorCosta, Jose Eduardo da Silveirapt_BR
dc.contributor.authorCosta, Alex Fabiano Murillo dapt_BR
dc.contributor.authorWood, Matthew A.pt_BR
dc.contributor.authorSilvestri, Nicole M.pt_BR
dc.contributor.authorAhrens, T.J.pt_BR
dc.contributor.authorJones, Aaron Kylept_BR
dc.contributor.authorCollins, A.E.pt_BR
dc.contributor.authorBoyer, M.pt_BR
dc.contributor.authorShaw, James Scottpt_BR
dc.contributor.authorMukadam, Anjum Shaguftapt_BR
dc.contributor.authorKlumpe, Eric W.pt_BR
dc.contributor.authorLarrison, Jessept_BR
dc.contributor.authorKawaler, Steven D.pt_BR
dc.contributor.authorRiddle, Reed L.pt_BR
dc.contributor.authorUlla, Anapt_BR
dc.contributor.authorBradley, Paul A.pt_BR
dc.date.accessioned2015-01-22T02:13:49Zpt_BR
dc.date.issued2003pt_BR
dc.identifier.issn0004-6361pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/109133pt_BR
dc.description.abstractWe report 323 hours of nearly uninterrupted time series photometric observations of the DBV star GD 358 acquired with the Whole Earth Telescope (WET) during May 23rd to June 8th, 2000. We acquired more than 232 000 independent measurements. We also report on 48 hours of time-series photometric observations in Aug 1996. We detected the non-radial g-modes consistent with degree l = 1 and radial order 8 to 20 and their linear combinations up to 6th order. We also detect, for the first time, a high amplitude l = 2 mode, with a period of 796 s. In the 2000 WET data, the largest amplitude modes are similar to those detected with the WET observations of 1990 and 1994, but the highest combination order previously detected was 4th order. At one point during the 1996 observations, most of the pulsation energy was transferred into the radial order k = 8 mode, which displayed a sinusoidal pulse shape in spite of the large amplitude. The multiplet structure of the individual modes changes from year to year, and during the 2000 observations only the k = 9 mode displays clear normal triplet structure. Even though the pulsation amplitudes change on timescales of days and years, the eigenfrequencies remain essentially the same, showing the stellar structure is not changing on any dynamical timescale.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofAstronomy and astrophysics. Berlin. Vol. 401, no. 2 (Apr. 2003), p. 639-654pt_BR
dc.rightsOpen Accessen
dc.subjectStars: white dwarfsen
dc.subjectFotometria estelarpt_BR
dc.subjectStars: variables: generalen
dc.subjectPulsacoes estelarespt_BR
dc.subjectEstrelas variaveispt_BR
dc.subjectStars: oscillationsen
dc.subjectStars: individual: GD 358en
dc.subjectStars: evolutionen
dc.titleThe everchanging pulsating white dwarf GD358pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000381415pt_BR
dc.type.originEstrangeiropt_BR


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