Activity and rotation of Kepler-17
| dc.contributor.author | Valio, Adriana | |
| dc.contributor.author | Estrela, Raissa | |
| dc.contributor.author | Netto, Yuri | |
| dc.contributor.author | Bravo, J. P. | |
| dc.contributor.author | Medeiros, José Renan de | |
| dc.date.accessioned | 2020-06-01T00:15:42Z | |
| dc.date.available | 2020-06-01T00:15:42Z | |
| dc.date.issued | 2017 | |
| dc.description.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%... | pt_BR |
| dc.identifier.citation | 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 | pt_BR |
| dc.identifier.doi | 10.3847/1538-4357/835/2/294 | |
| dc.identifier.uri | https://repositorio.ufrn.br/jspui/handle/123456789/29109 | |
| dc.language | en | pt_BR |
| dc.publisher | The American Astronomical Society | pt_BR |
| dc.subject | Stars | pt_BR |
| dc.subject | Activity – stars | pt_BR |
| dc.subject | Rotation – starspots | pt_BR |
| dc.title | Activity and rotation of Kepler-17 | pt_BR |
| dc.type | article | pt_BR |
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