Search for rings and satellites around the exoplanet CoRoT-9b using Spitzer photometry

Using Spitzer photometry at 4.5 microns, we search for rings and satellites around the long period transiting planet CoRoT-9b. We observed two transits in 2010 and 2011. From their non-detection, we derive upper limits on the plausible physical characteristics of these objects in the planet environm...

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Detalles Bibliográficos
Autores principales: Lecavelier Des Etangs, A., Hébrard, G., Blandin, S., Cassier, J., Deeg, H.J., Bonomo, A.S., Bouchy, F., Désert, J.-M., Ehrenreich, D., Deleuil, M., Díaz, R.F., Moutou, C., Vidal-Madjar, A.
Formato: JOUR
Materias:
Planetary systems
Stars: individual: CoRoT-9
Techniques: photometric
Photometry
Silicates
Earth radii
Inclination angles
Non-detection
Physical characteristics
Planetary system
Stars: individual
Upper limits
Satellites
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00046361_v603_n_p_LecavelierDesEtangs
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Using Spitzer photometry at 4.5 microns, we search for rings and satellites around the long period transiting planet CoRoT-9b. We observed two transits in 2010 and 2011. From their non-detection, we derive upper limits on the plausible physical characteristics of these objects in the planet environment. We show that a satellite larger than about 2.5 Earth radii is excluded at 3σ for a wide range of elongations at the two epochs of observations. Combining the two observations, we conclude that rings are excluded for a wide variety of sizes and inclination. We find that for a ring extending up to the Roche limit, its inclination angle from the edge-on configuration as seen from the Earth must be lower than 13° in the case of silicate composition and lower than 3° in the case of material with water ice density. © ESO, 2017.

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