Discovery of fourteen new ZZ Cetis with SOAR
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/98774 |
Resumo: | We report the discovery of fourteen new ZZ Cetis with the 4.1 m Southern Astrophysical Research telescope, at Cerro Pachon, in Chile. The candidates were selected from the SDSS (Sloan Digital Sky Survey) DA white dwarf stars with Teff obtained from the optical spectra fit, inside the ZZ Ceti instability strip. Considering these stars are multi-periodic pulsators and the pulsations propagate to the nucleus of the star, they carry information on the structure of the star and evolution of the progenitors. The ZZ Cetis discovered till 2003 are mainly within 100 pc from the Sun, and probe only the solar vicinity. The recently discovered ones, and those reported here, may sample a distinct population as they were selected mainly perpendicular to the galactic disk and cover a distance up to ≈400 pc. |
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Kepler, Souza OliveiraCastanheira, Bárbara GarciaSaraiva, Maria de Fátima OliveiraNitta, AtsukoKleinman, Scot JamesMullally, FergalWinget, Donald EarlEisenstein, D.J.2014-07-26T02:09:20Z20050004-6361http://hdl.handle.net/10183/98774000537582We report the discovery of fourteen new ZZ Cetis with the 4.1 m Southern Astrophysical Research telescope, at Cerro Pachon, in Chile. The candidates were selected from the SDSS (Sloan Digital Sky Survey) DA white dwarf stars with Teff obtained from the optical spectra fit, inside the ZZ Ceti instability strip. Considering these stars are multi-periodic pulsators and the pulsations propagate to the nucleus of the star, they carry information on the structure of the star and evolution of the progenitors. The ZZ Cetis discovered till 2003 are mainly within 100 pc from the Sun, and probe only the solar vicinity. The recently discovered ones, and those reported here, may sample a distinct population as they were selected mainly perpendicular to the galactic disk and cover a distance up to ≈400 pc.application/pdfengAstronomy and astrophysics. Les Ulis. Vol. 442, no. 2 (Nov. 2005), p. 629-634Estrelas variaveisCatalogos astronomicosPulsacoes estelaresEspectros estelaresAnãs brancasAnãs brancasStars: white dwarfStars: variables: generalStars: oscillationsDiscovery of fourteen new ZZ Cetis with SOAREstrangeiroinfo: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:UFRGSORIGINAL000537582.pdf000537582.pdfTexto completo (inglês)application/pdf423927http://www.lume.ufrgs.br/bitstream/10183/98774/1/000537582.pdf9510407c2ef75bdb20790dddad00acd1MD51TEXT000537582.pdf.txt000537582.pdf.txtExtracted Texttext/plain21874http://www.lume.ufrgs.br/bitstream/10183/98774/2/000537582.pdf.txt25aaac0f5c05d8511109d47da8e36adaMD52THUMBNAIL000537582.pdf.jpg000537582.pdf.jpgGenerated Thumbnailimage/jpeg2166http://www.lume.ufrgs.br/bitstream/10183/98774/3/000537582.pdf.jpg035eac5fd83b4f389d7c6cc81397af2dMD5310183/987742018-10-22 07:42:17.198oai:www.lume.ufrgs.br:10183/98774Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-22T10:42:17Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Discovery of fourteen new ZZ Cetis with SOAR |
title |
Discovery of fourteen new ZZ Cetis with SOAR |
spellingShingle |
Discovery of fourteen new ZZ Cetis with SOAR Kepler, Souza Oliveira Estrelas variaveis Catalogos astronomicos Pulsacoes estelares Espectros estelares Anãs brancas Anãs brancas Stars: white dwarf Stars: variables: general Stars: oscillations |
title_short |
Discovery of fourteen new ZZ Cetis with SOAR |
title_full |
Discovery of fourteen new ZZ Cetis with SOAR |
title_fullStr |
Discovery of fourteen new ZZ Cetis with SOAR |
title_full_unstemmed |
Discovery of fourteen new ZZ Cetis with SOAR |
title_sort |
Discovery of fourteen new ZZ Cetis with SOAR |
author |
Kepler, Souza Oliveira |
author_facet |
Kepler, Souza Oliveira Castanheira, Bárbara Garcia Saraiva, Maria de Fátima Oliveira Nitta, Atsuko Kleinman, Scot James Mullally, Fergal Winget, Donald Earl Eisenstein, D.J. |
author_role |
author |
author2 |
Castanheira, Bárbara Garcia Saraiva, Maria de Fátima Oliveira Nitta, Atsuko Kleinman, Scot James Mullally, Fergal Winget, Donald Earl Eisenstein, D.J. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Kepler, Souza Oliveira Castanheira, Bárbara Garcia Saraiva, Maria de Fátima Oliveira Nitta, Atsuko Kleinman, Scot James Mullally, Fergal Winget, Donald Earl Eisenstein, D.J. |
dc.subject.por.fl_str_mv |
Estrelas variaveis Catalogos astronomicos Pulsacoes estelares Espectros estelares Anãs brancas Anãs brancas |
topic |
Estrelas variaveis Catalogos astronomicos Pulsacoes estelares Espectros estelares Anãs brancas Anãs brancas Stars: white dwarf Stars: variables: general Stars: oscillations |
dc.subject.eng.fl_str_mv |
Stars: white dwarf Stars: variables: general Stars: oscillations |
description |
We report the discovery of fourteen new ZZ Cetis with the 4.1 m Southern Astrophysical Research telescope, at Cerro Pachon, in Chile. The candidates were selected from the SDSS (Sloan Digital Sky Survey) DA white dwarf stars with Teff obtained from the optical spectra fit, inside the ZZ Ceti instability strip. Considering these stars are multi-periodic pulsators and the pulsations propagate to the nucleus of the star, they carry information on the structure of the star and evolution of the progenitors. The ZZ Cetis discovered till 2003 are mainly within 100 pc from the Sun, and probe only the solar vicinity. The recently discovered ones, and those reported here, may sample a distinct population as they were selected mainly perpendicular to the galactic disk and cover a distance up to ≈400 pc. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2014-07-26T02:09:20Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/98774 |
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0004-6361 |
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000537582 |
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0004-6361 000537582 |
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http://hdl.handle.net/10183/98774 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and astrophysics. Les Ulis. Vol. 442, no. 2 (Nov. 2005), p. 629-634 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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