Bibcode
Deeg, H. J.; Belmonte, J. A.
Bibliographical reference
Handbook of Exoplanets, ISBN 978-3-319-55332-0. Springer International Publishing AG, part of Springer Nature, 2018
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2018
Citations
74
Refereed citations
36
Description
The star 55 Cancri was one of the first known exoplanet hosts and each
of the planets in this system is remarkable. Planets b and c are in a
near 1:3 resonance. Planet d has a 14.5 year orbit, and is one of the
longest known orbital periods for a gas giant planet. Planet e has a
mass of 8 M? and transits this bright star, providing a unique case for
modeling of the interior structure and atmospheric composition of an
exoplanet. Planet f resides in the habitable zone of the star. If the
planets are approximately co-planar, then by virtue of having one
transiting planet, this is a system where the Doppler technique has
essentially measured the true mass of the planets, rather than just Msin
i. The unfolding history of planet discovery for this system provides a
good example of the challenges and importance of understanding the star
to understand the planets.