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20182025
most citedDensity, not radius, separates rocky and water-rich small planets orbiting M dwarf stars

301 citations · 1.6k across the 75 of their papers we have counts for

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Showing 2021Show all

6 papers · 1 filter

astro-ph.EP2021★ 43 cited

HATS-74Ab, HATS-75b, HATS-76b and HATS-77b: Four Transiting Giant Planets around K and M Dwarfs

A. Jordán, J. D. Hartman, D. Bayliss +32

The relative rarity of giant planets around low mass stars compared with solar-type stars is a key prediction from core accretion planet formation theory. In this paper we report o…

astro-ph.EP2021★ 74 cited

GJ 367b: A dense ultra-short period sub-Earth planet transiting a nearby red dwarf star

Kristine W. F. Lam, Szilárd Csizmadia, Nicola Astudillo-Defru +75

Ultra-short-period (USP) exoplanets have orbital periods shorter than one day. Precise masses and radii of USPs could provide constraints on their unknown formation and evolution p…

astro-ph.EP2021

K2-99 revisited: a non-inflated warm Jupiter, and a temperate giant planet on a 522-d orbit around a subgiant

A. M. S. Smith, S. N. Breton, Sz. Csizmadia +29

We report new photometric and spectroscopic observations of the K2-99 planetary system. Asteroseismic analysis of the short-cadence light curve from K2's Campaign 17 allows us to r…

astro-ph.EP2021★ 13 cited

A multi-planetary system orbiting the early-M dwarf TOI-1238

E. González-Álvarez, M. R. Zapatero Osorio, J. Sanz-Forcada +53

Two transiting planet candidates with super-Earth radii around the nearby K7--M0 dwarf star TOI-1238 were announced by TESS. We aim to validate their planetary nature using precise…

astro-ph.EP2021★ 51 cited

High-resolution transmission spectroscopy study of ultra-hot Jupiters HAT-P-57b, KELT-17b, KELT-21b, KELT-7b, MASCARA-1b, and WASP-189b

M. Stangret, N. Casasayas-Barris, E. Pallé +5

Ultra-hot jupiters (UHJs) are giant planets on short orbital periods with high equilibrium temperature (T_eq) values. Their hot, extended atmospheres are perfect laboratories for t…

astro-ph.EP2021★ 74 cited

Rapid contraction of giant planets orbiting the 20 million-years old star V1298 Tau

A. Suárez Mascareño, M. Damasso, N. Lodieu +41

Current theories of planetary evolution predict that infant giant planets have large radii and very low densities before they slowly contract to reach their final size after about…