Evaporation of hot Jupiters: observations and models

Details Evaporation of hot Jupiters: observations and models Evaporation of hot Jupiters: observations and models

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006tafp.conf..226f&link_type=abstract

"Tenth Anniversary of 51 Peg-b: Status of and prospects for hot Jupiter studies. Colloquium held at Observatoire de Haute Proven

Physics

Scientific paper

We report the detection of the exosphere of the extrasolar planet HD209458b through transmission spectroscopy with the HST. The extra-absorptions measured during the transit in hydrogen, oxygen and carbon imply that the atmosphere is evaporating through an hydrodynamic "blow--off" mechanism. The escape rate and the lifetime of hot Jupiters are estimated from a particular modeling. It is suggested that some of the less massive known exoplanets could be the dense cores remnants of such an evaporation process.

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