Autor(es)

Selhorst, Caius Lucius ; Valio, Adriana ; Nandy, D ; Valio, A ; Petit, P

• Tipo de documento: Artigo Científico
• Fonte: LIVING AROUND ACTIVE STARS; v. 12, n. S328, p. 3-pg., 2017-01-01.

Resumo

Here we simulate the shape of a planetary transit observed at radio wavelengths. The simulations use a light curve of the K4 star HAT-P-11 and its hot Jupiter companion as proxy. From the HAT-P-11 optical light curve, a prominent spot was identified (1.10 R-P and 0.6 I-C). On the radio regime, the limb brighting of 30% was simulated by a quadratic function, and the active region was assumed to have the same size of the optical spot. Considering that the planet size is 6.35% of the the stellar radius, for the quiet star regions the transit depth is smaller than 0.5%, however, this value can increase to similar to 2% when covering an active region with 5.0 times the quiet star brightness temperature. (AU)

• Processo FAPESP: 14/10489-0 - Estudo das mudanças no campo magnético solar a partir de observações rádio
• Beneficiário: Caius Lucius Selhorst
• Modalidade de apoio: Auxílio à Pesquisa - Regular