On the rotational behaviour of parent stars of extrasolar planets
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/29114 |
Resumo: | We analysed the behaviour of the rotational velocity in the parent stars of extrasolar planets. Projected rotational velocity v sin i and angular momentum were combined with stellar and planetary parameters, for a unique sample of 147 stars, amounting to 184 extrasolar planets, including 25 multiple systems. Indeed, for the present working sample we considered only stars with planets detected by the radial-velocity procedure. Our analysis shows that the v sin i distribution of stars with planets along the HR diagram follows the well-established scenario for the rotation of intermediate to low main-sequence stars, with a sudden decline in rotation near 1.2 M⊙. The decline occurs around Teff∼ 6000 K, corresponding to the late-F spectral region. A statistical comparison of the distribution of the rotation of stars with planets and a sample of stars without planets indicates that the v sin i distribution for these two families of stars is drawn from the same population distribution function. We also found that the angular momentum of extrasolar planet parent stars follows, at least qualitatively, Kraft's relation J∝ (M/M⊙)α. The stars without detected planets show a clear trend of angular momentum deficit compared to the stars with planets, in particular for masses higher than about 1.25 M⊙. Stars with the largest mass planets tend to have angular momentum comparable to or higher than the Sun. |
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Alves, S.Nascimento Junior, Jose Ribamar Silva doMedeiros, José Renan de2020-06-01T01:53:40Z2020-06-01T01:53:40Z2009ALVES, S. ; NASCIMENTO JUNIOR, J. D. ; MEDEIROS, J. R. de. On the rotational behaviour of parent stars of extrasolar planets. Monthly Notices of the Royal Astronomical Society, v. 408, p. 1770-1777, 2010. Disponível em: https://academic.oup.com/mnras/article/408/3/1770/1075368. Acesso em: 18 Maio 2020. https://doi.org/10.1111/j.1365-2966.2010.17243.xhttps://repositorio.ufrn.br/jspui/handle/123456789/2911410.1111/j.1365-2966.2010.17243.xOxford University PressPlanetary systemsStars - rotationOn the rotational behaviour of parent stars of extrasolar planetsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe analysed the behaviour of the rotational velocity in the parent stars of extrasolar planets. Projected rotational velocity v sin i and angular momentum were combined with stellar and planetary parameters, for a unique sample of 147 stars, amounting to 184 extrasolar planets, including 25 multiple systems. Indeed, for the present working sample we considered only stars with planets detected by the radial-velocity procedure. Our analysis shows that the v sin i distribution of stars with planets along the HR diagram follows the well-established scenario for the rotation of intermediate to low main-sequence stars, with a sudden decline in rotation near 1.2 M⊙. The decline occurs around Teff∼ 6000 K, corresponding to the late-F spectral region. A statistical comparison of the distribution of the rotation of stars with planets and a sample of stars without planets indicates that the v sin i distribution for these two families of stars is drawn from the same population distribution function. We also found that the angular momentum of extrasolar planet parent stars follows, at least qualitatively, Kraft's relation J∝ (M/M⊙)α. The stars without detected planets show a clear trend of angular momentum deficit compared to the stars with planets, in particular for masses higher than about 1.25 M⊙. Stars with the largest mass planets tend to have angular momentum comparable to or higher than the Sun.engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALOnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdfOnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdfapplication/pdf798464https://repositorio.ufrn.br/bitstream/123456789/29114/1/OnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdf79288483e30e95eea63b13e69fbc4325MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29114/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTOnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdf.txtOnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdf.txtExtracted texttext/plain43415https://repositorio.ufrn.br/bitstream/123456789/29114/3/OnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdf.txtecaa27375105a5b4e881d6f6116755b0MD53THUMBNAILOnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdf.jpgOnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdf.jpgGenerated Thumbnailimage/jpeg1815https://repositorio.ufrn.br/bitstream/123456789/29114/4/OnTheRotationalBehaviourOfParentStars_Medeiros_2010.pdf.jpge6f6377ed93c524318f43386a59f1f5dMD54123456789/291142020-06-07 04:36:02.92oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-06-07T07:36:02Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
On the rotational behaviour of parent stars of extrasolar planets |
title |
On the rotational behaviour of parent stars of extrasolar planets |
spellingShingle |
On the rotational behaviour of parent stars of extrasolar planets Alves, S. Planetary systems Stars - rotation |
title_short |
On the rotational behaviour of parent stars of extrasolar planets |
title_full |
On the rotational behaviour of parent stars of extrasolar planets |
title_fullStr |
On the rotational behaviour of parent stars of extrasolar planets |
title_full_unstemmed |
On the rotational behaviour of parent stars of extrasolar planets |
title_sort |
On the rotational behaviour of parent stars of extrasolar planets |
author |
Alves, S. |
author_facet |
Alves, S. Nascimento Junior, Jose Ribamar Silva do Medeiros, José Renan de |
author_role |
author |
author2 |
Nascimento Junior, Jose Ribamar Silva do Medeiros, José Renan de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Alves, S. Nascimento Junior, Jose Ribamar Silva do Medeiros, José Renan de |
dc.subject.por.fl_str_mv |
Planetary systems Stars - rotation |
topic |
Planetary systems Stars - rotation |
description |
We analysed the behaviour of the rotational velocity in the parent stars of extrasolar planets. Projected rotational velocity v sin i and angular momentum were combined with stellar and planetary parameters, for a unique sample of 147 stars, amounting to 184 extrasolar planets, including 25 multiple systems. Indeed, for the present working sample we considered only stars with planets detected by the radial-velocity procedure. Our analysis shows that the v sin i distribution of stars with planets along the HR diagram follows the well-established scenario for the rotation of intermediate to low main-sequence stars, with a sudden decline in rotation near 1.2 M⊙. The decline occurs around Teff∼ 6000 K, corresponding to the late-F spectral region. A statistical comparison of the distribution of the rotation of stars with planets and a sample of stars without planets indicates that the v sin i distribution for these two families of stars is drawn from the same population distribution function. We also found that the angular momentum of extrasolar planet parent stars follows, at least qualitatively, Kraft's relation J∝ (M/M⊙)α. The stars without detected planets show a clear trend of angular momentum deficit compared to the stars with planets, in particular for masses higher than about 1.25 M⊙. Stars with the largest mass planets tend to have angular momentum comparable to or higher than the Sun. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009 |
dc.date.accessioned.fl_str_mv |
2020-06-01T01:53:40Z |
dc.date.available.fl_str_mv |
2020-06-01T01:53:40Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
ALVES, S. ; NASCIMENTO JUNIOR, J. D. ; MEDEIROS, J. R. de. On the rotational behaviour of parent stars of extrasolar planets. Monthly Notices of the Royal Astronomical Society, v. 408, p. 1770-1777, 2010. Disponível em: https://academic.oup.com/mnras/article/408/3/1770/1075368. Acesso em: 18 Maio 2020. https://doi.org/10.1111/j.1365-2966.2010.17243.x |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/29114 |
dc.identifier.doi.none.fl_str_mv |
10.1111/j.1365-2966.2010.17243.x |
identifier_str_mv |
ALVES, S. ; NASCIMENTO JUNIOR, J. D. ; MEDEIROS, J. R. de. On the rotational behaviour of parent stars of extrasolar planets. Monthly Notices of the Royal Astronomical Society, v. 408, p. 1770-1777, 2010. Disponível em: https://academic.oup.com/mnras/article/408/3/1770/1075368. Acesso em: 18 Maio 2020. https://doi.org/10.1111/j.1365-2966.2010.17243.x 10.1111/j.1365-2966.2010.17243.x |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/29114 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Oxford University Press |
publisher.none.fl_str_mv |
Oxford University Press |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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Universidade Federal do Rio Grande do Norte (UFRN) |
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UFRN |
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UFRN |
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Repositório Institucional da UFRN |
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Repositório Institucional da UFRN |
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