Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/98757 |
Resumo: | The pulsating PG 1159 planetary nebula central star RXJ 2117+3412 has been observed over three successive seasons of a multisite photometric campaign. The asteroseismological analysis of the data, based on the 37 identified l = 1 modes among the 48 independent pulsation frequencies detected in the power spectrum, leads to the derivation of the rotational splitting, the period spacing and the mode trapping cycle and amplitude, from which a number of fundamental parameters can be deduced. The average rotation period is 1.16 ± 0.05 days. The trend for the rotational splitting to decrease with increasing periods is incompatible with a solid body rotation. The total mass is 0.56⁺⁰˙⁰²₋₀.₀₄ Mѳ and the He-rich envelope mass fraction is in the range 0.013–0.078 M*. The luminosity derived from asteroseismology is log(L/Lѳ) = 4.05⁺⁰˙²³₋₀.₃₂ and the distance 760⁺²³⁰₋₂₃₅ pc. At such a distance, the linear size of the planetary nebulae is 2.9 ± 0.9 pc. The role of mass loss on the excitation mechanism and its consequence on the amplitude variations is discussed. |
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Vauclair, GérardMoskalik, PawelPfeiffer, BenChevreton, MichelDolez, NoëlSerre, B.Kleinman, Scot JamesBarstow, Martin A.Sansom, A.E.Solheim, Jan-EricBelmonte, J.A.Kawaler, Steven D.Kepler, Souza OliveiraKanaan Neto, Antonio NemerGiovannini Junior, OdilonWinget, Donald EarlWatson, Todd K.Nather, R. EdwardClemens, J. ChristopherProvencal, Judith L.Dixson, James S.Yanagida, K.Nitta, AtsukoMontgomery, Michael HoustonKlumpe, Eric W.Bruvold, A.O'Brien, M. SeanHansen, Carl J.Grauer, Albert D.Bradley, Paul A.Wood, Matthew A.Achilleos, NicholasJiang, Shi YangFu, Jianning NingMarar, T.M. KrishnanAshoka, B.N.Meistas, Edmundas G.Chernyshev, A.V.Mazeh, TseviLeibowitz, Elia M.Hemar, ShirleyKrzesinski, JerzyPajdosz, GabrielZola, Staszek2014-07-26T02:09:13Z20020004-6361http://hdl.handle.net/10183/98757000311460The pulsating PG 1159 planetary nebula central star RXJ 2117+3412 has been observed over three successive seasons of a multisite photometric campaign. The asteroseismological analysis of the data, based on the 37 identified l = 1 modes among the 48 independent pulsation frequencies detected in the power spectrum, leads to the derivation of the rotational splitting, the period spacing and the mode trapping cycle and amplitude, from which a number of fundamental parameters can be deduced. The average rotation period is 1.16 ± 0.05 days. The trend for the rotational splitting to decrease with increasing periods is incompatible with a solid body rotation. The total mass is 0.56⁺⁰˙⁰²₋₀.₀₄ Mѳ and the He-rich envelope mass fraction is in the range 0.013–0.078 M*. The luminosity derived from asteroseismology is log(L/Lѳ) = 4.05⁺⁰˙²³₋₀.₃₂ and the distance 760⁺²³⁰₋₂₃₅ pc. At such a distance, the linear size of the planetary nebulae is 2.9 ± 0.9 pc. The role of mass loss on the excitation mechanism and its consequence on the amplitude variations is discussed.application/pdfengAstronomy and astrophysics. Les Ulis. Vol. 381, no. 1 (Jan. 2002), p. 122-150Material circum-estelarNebulosas planetariasEstrelasProcessos internos estelaresMassa estelarFotometria estelarPulsacoes estelaresRotacao estelarVentos estelaresEstrelas variaveisAnãs brancasStars: fundamental parametersStars: individual (RXJ 2117+3412)Stars: oscillationsAsteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 starEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000311460.pdf000311460.pdfTexto completo (inglês)application/pdf539419http://www.lume.ufrgs.br/bitstream/10183/98757/1/000311460.pdf4ae05fd2ea009321f3ea7121613174f4MD51TEXT000311460.pdf.txt000311460.pdf.txtExtracted Texttext/plain117147http://www.lume.ufrgs.br/bitstream/10183/98757/2/000311460.pdf.txt1f4f37657272fabcd410cea4c398cb60MD52THUMBNAIL000311460.pdf.jpg000311460.pdf.jpgGenerated Thumbnailimage/jpeg1887http://www.lume.ufrgs.br/bitstream/10183/98757/3/000311460.pdf.jpga92ca0cd736d6cffe395a9c39aa0c556MD5310183/987572018-10-22 07:41:53.461oai:www.lume.ufrgs.br:10183/98757Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-22T10:41:53Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star |
title |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star |
spellingShingle |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star Vauclair, Gérard Material circum-estelar Nebulosas planetarias Estrelas Processos internos estelares Massa estelar Fotometria estelar Pulsacoes estelares Rotacao estelar Ventos estelares Estrelas variaveis Anãs brancas Stars: fundamental parameters Stars: individual (RXJ 2117+3412) Stars: oscillations |
title_short |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star |
title_full |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star |
title_fullStr |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star |
title_full_unstemmed |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star |
title_sort |
Asteroseismology of RXJ 2117+3412, the hottest pulsating PG 1159 star |
author |
Vauclair, Gérard |
author_facet |
Vauclair, Gérard Moskalik, Pawel Pfeiffer, Ben Chevreton, Michel Dolez, Noël Serre, B. Kleinman, Scot James Barstow, Martin A. Sansom, A.E. Solheim, Jan-Eric Belmonte, J.A. Kawaler, Steven D. Kepler, Souza Oliveira Kanaan Neto, Antonio Nemer Giovannini Junior, Odilon Winget, Donald Earl Watson, Todd K. Nather, R. Edward Clemens, J. Christopher Provencal, Judith L. Dixson, James S. Yanagida, K. Nitta, Atsuko Montgomery, Michael Houston Klumpe, Eric W. Bruvold, A. O'Brien, M. Sean Hansen, Carl J. Grauer, Albert D. Bradley, Paul A. Wood, Matthew A. Achilleos, Nicholas Jiang, Shi Yang Fu, Jianning Ning Marar, T.M. Krishnan Ashoka, B.N. Meistas, Edmundas G. Chernyshev, A.V. Mazeh, Tsevi Leibowitz, Elia M. Hemar, Shirley Krzesinski, Jerzy Pajdosz, Gabriel Zola, Staszek |
author_role |
author |
author2 |
Moskalik, Pawel Pfeiffer, Ben Chevreton, Michel Dolez, Noël Serre, B. Kleinman, Scot James Barstow, Martin A. Sansom, A.E. Solheim, Jan-Eric Belmonte, J.A. Kawaler, Steven D. Kepler, Souza Oliveira Kanaan Neto, Antonio Nemer Giovannini Junior, Odilon Winget, Donald Earl Watson, Todd K. Nather, R. Edward Clemens, J. Christopher Provencal, Judith L. Dixson, James S. Yanagida, K. Nitta, Atsuko Montgomery, Michael Houston Klumpe, Eric W. Bruvold, A. O'Brien, M. Sean Hansen, Carl J. Grauer, Albert D. Bradley, Paul A. Wood, Matthew A. Achilleos, Nicholas Jiang, Shi Yang Fu, Jianning Ning Marar, T.M. Krishnan Ashoka, B.N. Meistas, Edmundas G. Chernyshev, A.V. Mazeh, Tsevi Leibowitz, Elia M. Hemar, Shirley Krzesinski, Jerzy Pajdosz, Gabriel Zola, Staszek |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Vauclair, Gérard Moskalik, Pawel Pfeiffer, Ben Chevreton, Michel Dolez, Noël Serre, B. Kleinman, Scot James Barstow, Martin A. Sansom, A.E. Solheim, Jan-Eric Belmonte, J.A. Kawaler, Steven D. Kepler, Souza Oliveira Kanaan Neto, Antonio Nemer Giovannini Junior, Odilon Winget, Donald Earl Watson, Todd K. Nather, R. Edward Clemens, J. Christopher Provencal, Judith L. Dixson, James S. Yanagida, K. Nitta, Atsuko Montgomery, Michael Houston Klumpe, Eric W. Bruvold, A. O'Brien, M. Sean Hansen, Carl J. Grauer, Albert D. Bradley, Paul A. Wood, Matthew A. Achilleos, Nicholas Jiang, Shi Yang Fu, Jianning Ning Marar, T.M. Krishnan Ashoka, B.N. Meistas, Edmundas G. Chernyshev, A.V. Mazeh, Tsevi Leibowitz, Elia M. Hemar, Shirley Krzesinski, Jerzy Pajdosz, Gabriel Zola, Staszek |
dc.subject.por.fl_str_mv |
Material circum-estelar Nebulosas planetarias Estrelas Processos internos estelares Massa estelar Fotometria estelar Pulsacoes estelares Rotacao estelar Ventos estelares Estrelas variaveis Anãs brancas |
topic |
Material circum-estelar Nebulosas planetarias Estrelas Processos internos estelares Massa estelar Fotometria estelar Pulsacoes estelares Rotacao estelar Ventos estelares Estrelas variaveis Anãs brancas Stars: fundamental parameters Stars: individual (RXJ 2117+3412) Stars: oscillations |
dc.subject.eng.fl_str_mv |
Stars: fundamental parameters Stars: individual (RXJ 2117+3412) Stars: oscillations |
description |
The pulsating PG 1159 planetary nebula central star RXJ 2117+3412 has been observed over three successive seasons of a multisite photometric campaign. The asteroseismological analysis of the data, based on the 37 identified l = 1 modes among the 48 independent pulsation frequencies detected in the power spectrum, leads to the derivation of the rotational splitting, the period spacing and the mode trapping cycle and amplitude, from which a number of fundamental parameters can be deduced. The average rotation period is 1.16 ± 0.05 days. The trend for the rotational splitting to decrease with increasing periods is incompatible with a solid body rotation. The total mass is 0.56⁺⁰˙⁰²₋₀.₀₄ Mѳ and the He-rich envelope mass fraction is in the range 0.013–0.078 M*. The luminosity derived from asteroseismology is log(L/Lѳ) = 4.05⁺⁰˙²³₋₀.₃₂ and the distance 760⁺²³⁰₋₂₃₅ pc. At such a distance, the linear size of the planetary nebulae is 2.9 ± 0.9 pc. The role of mass loss on the excitation mechanism and its consequence on the amplitude variations is discussed. |
publishDate |
2002 |
dc.date.issued.fl_str_mv |
2002 |
dc.date.accessioned.fl_str_mv |
2014-07-26T02:09:13Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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http://hdl.handle.net/10183/98757 |
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0004-6361 |
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000311460 |
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http://hdl.handle.net/10183/98757 |
dc.language.iso.fl_str_mv |
eng |
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eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and astrophysics. Les Ulis. Vol. 381, no. 1 (Jan. 2002), p. 122-150 |
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openAccess |
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