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5 papers · 2 filters
The Featureless Transmission Spectra of Two Super-Puff Planets
Jessica E. Libby-Roberts, Zachory K. Berta-Thompson, Jean-Michel Desert +9
The Kepler mission revealed a class of planets known as ''super-puffs,'' with masses only a few times larger than Earth's but radii larger than Neptune, giving them very low mean d…
Co-orbital Asteroids as the Source of Venus's Zodiacal Dust Ring
Petr Pokorný, Marc J. Kuchner
Photometry from the Helios and STEREO spacecraft revealed regions of enhanced sky surface-brightness suggesting a narrow circumsolar ring of dust associated with Venus's orbit. We…
A high binary fraction for the most massive close-in giant planets and brown dwarf desert members
C. Fontanive, K. Rice, M. Bonavita +3
Stellar multiplicity is believed to influence planetary formation and evolution, although the precise nature and extent of this role remain ambiguous. We present a study aimed at t…
Pluto's lower atmosphere and pressure evolution from ground-based stellar occultations, 1988-2016
E. Meza, B. Sicardy, M. Assafin +167
Context. Pluto's tenuous nitrogen (N2) atmosphere undergoes strong seasonal effects due to high obliquity and orbital eccentricity, and has been recently (July 2015) observed by th…
Masses and radii for the three super-Earths orbiting GJ 9827, and implications for the composition of small exoplanets
K. Rice, L. Malavolta, A. Mayo +34
Super-Earths belong to a class of planet not found in the Solar System, but which appear common in the Galaxy. Given that some super-Earths are rocky, while others retain substanti…