• 'HD 80606b is thought to be caught in the act of migrating inward,' Julien de Wit, a postdoctoral planetary scientist at the Massachusetts Institute of Technology and lead author of the study.
• Atmospheric Circulation and Cloud Evolution on the Highly Eccentric Extrasolar Planet HD 80606b 2017 LEWIS N., PARMENTIER V., KATARIA T., de WIT J., SHOWMAN A.

The exosolar planet HD 80606b has a highly eccentric (e=0.93) and tight (a=0.47 AU) orbit. We study how it might arrive at such an orbit and how it has avoided being tidally circularized until now. The presence of a stellar companion to the host star suggests the possibility that the Kozai mechanism and tidal dissipation combined to draw the planet inward well after it formed: Kozai.

Star

Atmospheric parameters

Temperatures

Molecules

Remarks

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