Journal article
A More Precise Mass for GJ 1214 b and the Frequency of Multiplanet Systems Around Mid-M Dwarfs
Abstract
We present an intensive effort to refine the mass and orbit of the enveloped terrestrial planet GJ 1214 b using 165 radial velocity (RV) measurements taken with the HARPS spectrograph over a period of 10 years. We conduct a joint analysis of the RVs with archival Spitzer/IRAC transits and measure a planetary mass and radius of 8.17 ± 0.43 M ⊕ and 2.742−0.053+0.050 R ⊕. Assuming that GJ 1214 b is an Earth-like core surrounded by a H/He envelope, …
Authors
Cloutier R; Charbonneau D; Deming D; Bonfils X; Astudillo-Defru N
Journal
The Astronomical Journal, Vol. 162, No. 5,
Publisher
American Astronomical Society
Publication Date
November 1, 2021
DOI
10.3847/1538-3881/ac1584
ISSN
0004-6256