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Evidence for the volatile-rich composition of a 1.5- planet
Caroline Piaulet, Björn Benneke, Jose M. Almenara +18
The population of planets smaller than approximately is widely interpreted as consisting of rocky worlds, generally referred to as super-Earths. This picture is larg…
Updated Parameters and a New Transmission Spectrum of HD 97658b
Xueying Guo, Ian J. M. Crossfield, Diana Dragomir +23
Recent years have seen increasing interest in the characterization of sub-Neptune sized planets because of their prevalence in the Galaxy, contrasted with their absence in our sola…
Water Vapor and Clouds on the Habitable-Zone Sub-Neptune Exoplanet K2-18b
Björn Benneke, Ian Wong, Caroline Piaulet +13
Results from the Kepler mission indicate that the occurrence rate of small planets ( ) in the habitable zone of nearby low-mass stars may be as high as 80%. Despite t…
A Sub-Neptune Exoplanet with a Low-Metallicity Methane-Depleted Atmosphere and Mie-Scattering Clouds
Björn Benneke, Heather A. Knutson, Joshua Lothringer +15
With no analogues in the Solar System, the discovery of thousands of exoplanets with masses and radii intermediate between Earth and Neptune was one of the big surprises of exoplan…
Statistical Characterization of Hot Jupiter Atmospheres using Spitzer's Secondary Eclipses
Emily Garhart, Drake Deming, Avi Mandell +15
We report 78 secondary eclipse depths for a sample of 36 transiting hot Jupiters observed at 3.6- and 4.5 microns using the Spitzer Space Telescope. Our eclipse results for 27 of t…
TESS Discovery of a Transiting Super-Earth in the Mensae System
Chelsea X. Huang, Jennifer Burt, Andrew Vanderburg +45
We report the detection of a transiting planet around Mensae (HD 39091), using data from the Transiting Exoplanet Survey Satellite (TESS). The solar-type host star is unusually…