The Occultation and Phase Variations of 55 Cnc e

Details The Occultation and Phase Variations of 55 Cnc e The Occultation and Phase Variations of 55 Cnc e

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.2908r&link_type=abstract

American Astronomical Society, ESS meeting #2, #29.08

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Scientific paper

We have detected transits of the innermost planet "e" orbiting
55 Cnc (V = 6.0), based on two weeks of precise nearly continuous
photometric monitoring with the MOST space telescope. The planet
orbits with a period of only 17 hours and 41 minutes. The host
star is far brighter than that of any other known transiting
planet, which makes possible follow-up investigations which are
challenging for other exoplanetary systems. Both the mass and
radius of 55 Cnc e are now known to within 10%, making it an
excellent test of theoretical models of super-Earth structure.
The small planet-star separation (0.016 AU) provides a special
opportunity to search for signals of reflected light and thermal
emission from a super-Earth. We report on the analysis of the MOST
data to determine the planet's size, and to search for signatures
of its atmosphere as well as any star-planet interactions.

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