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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

TRANSIT MODEL OF PLANETS WITH MOON AND RING SYSTEMS

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Autor(es):
Tusnski, Luis Ricardo M. [1] ; Valio, Adriana [2]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Inst Nacl Pesquisas Espaciais, Div Astrophys, BR-1758 Sao Jose Dos Campos, SP - Brazil
[2] Univ Presbiteriana Mackenzie, Ctr Radio Astron & Astrophys, BR-896 Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: ASTROPHYSICAL JOURNAL; v. 743, n. 1 DEC 10 2011.
Citações Web of Science: 28
Resumo

Since the discovery of the first exoplanets, those most adequate for life to begin and evolve have been sought. Due to observational bias, however, most of the discovered planets so far are gas giants, precluding their habitability. However, if these hot Jupiters are located in the habitable zones of their host stars, and if rocky moons orbit them, then these moons may be habitable. In this work, we present a model for planetary transit simulation considering the presence of moons and planetary rings around a planet. The moon's orbit is considered to be circular and coplanar with the planetary orbit. The other physical and orbital parameters of the star, planet, moon, and rings can be adjusted in each simulation. It is possible to simulate as many successive transits as desired. Since the presence of spots on the surface of the star may produce a signal similar to that of the presence of a moon, our model also allows for the inclusion of starspots. The result of the simulation is a light curve with a planetary transit. White noise may also be added to the light curves to produce curves similar to those obtained by the CoRoT and Kepler space telescopes. The goal is to determine the criteria for detectability of moons and/or ring systems using photometry. The results show that it is possible to detect moons with radii as little as 1.3 R(circle plus) with CoRoT and 0.3 R(circle plus) with Kepler. (AU)

Processo FAPESP: 06/50654-3 - Investigação de fenômenos de altas energias e plasmas astrofísicos: teoria, observação e simulações numéricas
Beneficiário:Elisabete Maria de Gouveia Dal Pino
Linha de fomento: Auxílio à Pesquisa - Temático