Matches in SemOpenAlex for { <https://semopenalex.org/work/W2963024655> ?p ?o ?g. }
- W2963024655 endingPage "A1" @default.
- W2963024655 startingPage "A1" @default.
- W2963024655 abstract "Orbiting a bright, nearby star the 55 Cnc system offers a rare opportunity to study a multiplanet system that has a wide range of planetary masses and orbital distances. Using two decades of photometry and spectroscopy data, we have measured the rotation of the host star and its solar-like magnetic cycle. Accounting for this cycle in our velocimetric analysis of the system allows us to revise the properties of the outermost giant planet and its four planetary companions. The innermost planet 55 Cnc e is an unusually close-in super-Earth, whose transits have allowed for detailed follow-up studies. Recent observations favor the presence of a substantial atmosphere yet its composition, and the nature of the planet, remain unknown. We combined our derived planet mass (Mp = 8.0+-0.3 Mearth) with refined measurement of its optical radius derived from HST/STIS observations (Rp = 1.88+-0.03 Rearth over 530-750nm) to revise the density of 55 Cnc e (rho = 6.7+-0.4 g cm-3). Based on these revised properties we have characterized possible interiors of 55 Cnc e using a generalized Bayesian model. We confirm that the planet is likely surrounded by a heavyweight atmosphere, contributing a few percents of the planet radius. While we cannot exclude the presence of a water layer underneath the atmosphere, this scenario is unlikely given the observations of the planet across the entire spectrum and its strong irradiation. Follow-up observations of the system in photometry and in spectroscopy over different time-scales are needed to further investigate the nature and origin of this iconic super-Earth." @default.
- W2963024655 created "2019-07-30" @default.
- W2963024655 creator A5006841459 @default.
- W2963024655 creator A5017730308 @default.
- W2963024655 creator A5028525649 @default.
- W2963024655 creator A5031169948 @default.
- W2963024655 creator A5045216343 @default.
- W2963024655 creator A5066527569 @default.
- W2963024655 creator A5070793994 @default.
- W2963024655 creator A5082998639 @default.
- W2963024655 creator A5083285161 @default.
- W2963024655 creator A5084594696 @default.
- W2963024655 creator A5085237456 @default.
- W2963024655 creator A5091785575 @default.
- W2963024655 date "2018-10-30" @default.
- W2963024655 modified "2023-10-16" @default.
- W2963024655 title "The 55 Cancri system reassessed" @default.
- W2963024655 cites W1621677047 @default.
- W2963024655 cites W1834709580 @default.
- W2963024655 cites W1966655253 @default.
- W2963024655 cites W1985210401 @default.
- W2963024655 cites W1999002320 @default.
- W2963024655 cites W1999652311 @default.
- W2963024655 cites W2004437096 @default.
- W2963024655 cites W2008975329 @default.
- W2963024655 cites W2011930844 @default.
- W2963024655 cites W2023837954 @default.
- W2963024655 cites W2029167399 @default.
- W2963024655 cites W2029256278 @default.
- W2963024655 cites W2031043816 @default.
- W2963024655 cites W2037349416 @default.
- W2963024655 cites W2044183576 @default.
- W2963024655 cites W2049747765 @default.
- W2963024655 cites W2059746706 @default.
- W2963024655 cites W2065182615 @default.
- W2963024655 cites W2065486185 @default.
- W2963024655 cites W2066391952 @default.
- W2963024655 cites W2068533325 @default.
- W2963024655 cites W2069648718 @default.
- W2963024655 cites W2083359772 @default.
- W2963024655 cites W2088383747 @default.
- W2963024655 cites W2096611733 @default.
- W2963024655 cites W2096620333 @default.
- W2963024655 cites W2098846125 @default.
- W2963024655 cites W2101755019 @default.
- W2963024655 cites W2104005781 @default.
- W2963024655 cites W2108050996 @default.
- W2963024655 cites W2111640501 @default.
- W2963024655 cites W2142350809 @default.
- W2963024655 cites W2144895050 @default.
- W2963024655 cites W2148057049 @default.
- W2963024655 cites W2153907585 @default.
- W2963024655 cites W2160374032 @default.
- W2963024655 cites W2165027192 @default.
- W2963024655 cites W2165295159 @default.
- W2963024655 cites W2187737054 @default.
- W2963024655 cites W2318323104 @default.
- W2963024655 cites W2325590130 @default.
- W2963024655 cites W2331010765 @default.
- W2963024655 cites W2460693264 @default.
- W2963024655 cites W2520345415 @default.
- W2963024655 cites W2528004795 @default.
- W2963024655 cites W2556341805 @default.
- W2963024655 cites W2568270534 @default.
- W2963024655 cites W2589144420 @default.
- W2963024655 cites W2606686133 @default.
- W2963024655 cites W2763630815 @default.
- W2963024655 cites W2798535945 @default.
- W2963024655 cites W3098358836 @default.
- W2963024655 cites W3098392355 @default.
- W2963024655 cites W3098746927 @default.
- W2963024655 cites W3100177837 @default.
- W2963024655 cites W3100764750 @default.
- W2963024655 cites W3101592024 @default.
- W2963024655 cites W3101648795 @default.
- W2963024655 cites W3101787414 @default.
- W2963024655 cites W3101980161 @default.
- W2963024655 cites W3102014803 @default.
- W2963024655 cites W3102252448 @default.
- W2963024655 cites W3102629466 @default.
- W2963024655 cites W3103576629 @default.
- W2963024655 cites W3103616236 @default.
- W2963024655 cites W3105851181 @default.
- W2963024655 cites W3106513467 @default.
- W2963024655 cites W3122108750 @default.
- W2963024655 cites W3123376446 @default.
- W2963024655 cites W3123941036 @default.
- W2963024655 cites W4213040489 @default.
- W2963024655 cites W4240547237 @default.
- W2963024655 cites W4289766019 @default.
- W2963024655 cites W4289773127 @default.
- W2963024655 cites W4292309267 @default.
- W2963024655 cites W4292954801 @default.
- W2963024655 cites W4292956610 @default.
- W2963024655 cites W4294328540 @default.
- W2963024655 doi "https://doi.org/10.1051/0004-6361/201833154" @default.
- W2963024655 hasPublicationYear "2018" @default.
- W2963024655 type Work @default.