Activity and rotation of Kepler-17
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/29109 |
Resumo: | Magnetic activity on stars manifests itself in the form of dark spots on the stellar surface, which cause modulations of a few percent in the light curve of the star as it rotates. When a planet eclipses its host star, it might cross in front of one of these spots, creating a "bump" in the transit light curve. By modeling these spot signatures, it is possible to determine the physical properties of the spots such as size, temperature, and location. In turn, monitoring of the spots' longitude provides estimates of the stellar rotation and differential rotation. This technique was applied to the star Kepler-17, a solar–type star orbited by a hot Jupiter. The model yields the following spot characteristics: average radius of 49 ± 10 Mm, temperatures of 5100 ± 300 K, and surface area coverage of 6 ± 4%... |
id |
UFRN_ae799cf77763d8c5fe73a87af12716f6 |
---|---|
oai_identifier_str |
oai:https://repositorio.ufrn.br:123456789/29109 |
network_acronym_str |
UFRN |
network_name_str |
Repositório Institucional da UFRN |
repository_id_str |
|
spelling |
Valio, AdrianaEstrela, RaissaNetto, YuriBravo, J. P.Medeiros, José Renan de2020-06-01T00:15:42Z2020-06-01T00:15:42Z2017VALIO, ADRIANA ; ESTRELA, RAISSA ; NETTO, YURI ; BRAVO, J. P. ; MEDEIROS, J. R. de. Activity and rotation of Kepler-17. Astrophysical Journal, v. 835, p. 294, 2017. Disponível em: http://iopscience.iop.org/article/10.3847/1538-4357/835/2/294/meta. Acesso em: 20 Maio 2020. http://dx.doi.org/10.3847/1538-4357/835/2/294https://repositorio.ufrn.br/jspui/handle/123456789/2910910.3847/1538-4357/835/2/294The American Astronomical SocietyStarsActivity – starsRotation – starspotsActivity and rotation of Kepler-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleMagnetic activity on stars manifests itself in the form of dark spots on the stellar surface, which cause modulations of a few percent in the light curve of the star as it rotates. When a planet eclipses its host star, it might cross in front of one of these spots, creating a "bump" in the transit light curve. By modeling these spot signatures, it is possible to determine the physical properties of the spots such as size, temperature, and location. In turn, monitoring of the spots' longitude provides estimates of the stellar rotation and differential rotation. This technique was applied to the star Kepler-17, a solar–type star orbited by a hot Jupiter. The model yields the following spot characteristics: average radius of 49 ± 10 Mm, temperatures of 5100 ± 300 K, and surface area coverage of 6 ± 4%...engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29109/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTActivityAndRotationOfKepler-17_Medeiros_2017.pdf.txtActivityAndRotationOfKepler-17_Medeiros_2017.pdf.txtExtracted texttext/plain27377https://repositorio.ufrn.br/bitstream/123456789/29109/3/ActivityAndRotationOfKepler-17_Medeiros_2017.pdf.txta2c0c3da99d80118dc46aeacc204013fMD53THUMBNAILActivityAndRotationOfKepler-17_Medeiros_2017.pdf.jpgActivityAndRotationOfKepler-17_Medeiros_2017.pdf.jpgGenerated Thumbnailimage/jpeg1855https://repositorio.ufrn.br/bitstream/123456789/29109/4/ActivityAndRotationOfKepler-17_Medeiros_2017.pdf.jpge1a762eb0b1cdd9c6e5a03aca8d6b13cMD54123456789/291092022-10-20 18:16:05.711oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2022-10-20T21:16:05Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Activity and rotation of Kepler-17 |
title |
Activity and rotation of Kepler-17 |
spellingShingle |
Activity and rotation of Kepler-17 Valio, Adriana Stars Activity – stars Rotation – starspots |
title_short |
Activity and rotation of Kepler-17 |
title_full |
Activity and rotation of Kepler-17 |
title_fullStr |
Activity and rotation of Kepler-17 |
title_full_unstemmed |
Activity and rotation of Kepler-17 |
title_sort |
Activity and rotation of Kepler-17 |
author |
Valio, Adriana |
author_facet |
Valio, Adriana Estrela, Raissa Netto, Yuri Bravo, J. P. Medeiros, José Renan de |
author_role |
author |
author2 |
Estrela, Raissa Netto, Yuri Bravo, J. P. Medeiros, José Renan de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Valio, Adriana Estrela, Raissa Netto, Yuri Bravo, J. P. Medeiros, José Renan de |
dc.subject.por.fl_str_mv |
Stars Activity – stars Rotation – starspots |
topic |
Stars Activity – stars Rotation – starspots |
description |
Magnetic activity on stars manifests itself in the form of dark spots on the stellar surface, which cause modulations of a few percent in the light curve of the star as it rotates. When a planet eclipses its host star, it might cross in front of one of these spots, creating a "bump" in the transit light curve. By modeling these spot signatures, it is possible to determine the physical properties of the spots such as size, temperature, and location. In turn, monitoring of the spots' longitude provides estimates of the stellar rotation and differential rotation. This technique was applied to the star Kepler-17, a solar–type star orbited by a hot Jupiter. The model yields the following spot characteristics: average radius of 49 ± 10 Mm, temperatures of 5100 ± 300 K, and surface area coverage of 6 ± 4%... |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2020-06-01T00:15:42Z |
dc.date.available.fl_str_mv |
2020-06-01T00:15:42Z |
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 |
VALIO, ADRIANA ; ESTRELA, RAISSA ; NETTO, YURI ; BRAVO, J. P. ; MEDEIROS, J. R. de. Activity and rotation of Kepler-17. Astrophysical Journal, v. 835, p. 294, 2017. Disponível em: http://iopscience.iop.org/article/10.3847/1538-4357/835/2/294/meta. Acesso em: 20 Maio 2020. http://dx.doi.org/10.3847/1538-4357/835/2/294 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/29109 |
dc.identifier.doi.none.fl_str_mv |
10.3847/1538-4357/835/2/294 |
identifier_str_mv |
VALIO, ADRIANA ; ESTRELA, RAISSA ; NETTO, YURI ; BRAVO, J. P. ; MEDEIROS, J. R. de. Activity and rotation of Kepler-17. Astrophysical Journal, v. 835, p. 294, 2017. Disponível em: http://iopscience.iop.org/article/10.3847/1538-4357/835/2/294/meta. Acesso em: 20 Maio 2020. http://dx.doi.org/10.3847/1538-4357/835/2/294 10.3847/1538-4357/835/2/294 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/29109 |
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 |
The American Astronomical Society |
publisher.none.fl_str_mv |
The American Astronomical Society |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
instname_str |
Universidade Federal do Rio Grande do Norte (UFRN) |
instacron_str |
UFRN |
institution |
UFRN |
reponame_str |
Repositório Institucional da UFRN |
collection |
Repositório Institucional da UFRN |
bitstream.url.fl_str_mv |
https://repositorio.ufrn.br/bitstream/123456789/29109/2/license.txt https://repositorio.ufrn.br/bitstream/123456789/29109/3/ActivityAndRotationOfKepler-17_Medeiros_2017.pdf.txt https://repositorio.ufrn.br/bitstream/123456789/29109/4/ActivityAndRotationOfKepler-17_Medeiros_2017.pdf.jpg |
bitstream.checksum.fl_str_mv |
e9597aa2854d128fd968be5edc8a28d9 a2c0c3da99d80118dc46aeacc204013f e1a762eb0b1cdd9c6e5a03aca8d6b13c |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN) |
repository.mail.fl_str_mv |
|
_version_ |
1802117849894879232 |