Um estudo sobre a interação estrela-planeta a partirda relação massa-período planetário com a atividade estelar
In this work, we analyze the behavior of the chromospheric and coronal activities as a function of the mass and the orbital period of extrasolar planets which were detected by transit technique. So we look for possible effects of the planet on the star s chromosphere and corona. For this study we se...
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| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/16611 |
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| Resumo: | In this work, we analyze the behavior of the chromospheric and coronal activities
as a function of the mass and the orbital period of extrasolar planets which were
detected by transit technique. So we look for possible effects of the planet on the star s chromosphere
and corona. For this study we selected a sample of 48 stars with chromospheric
activity indicator and 23 with coronal activity indicator. Our work is based on the work
from Pont et al. (2011) in order to study stars with planets which were obtained by transit
technique. Furthermore, we studied the relationship between planetary mass and orbital
period with the chromospheric and coronal activity in order to better understand which
influences the planets cause in the outer layers of stellar atmosphere. In our analysis we
can observe that the mass of the planets exerts no influence in the stellar activity. However,
we observed that the stellar coronal and chromospheric activities decrease with the
increase of the orbital period of the planet |
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