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20132026
most citedEvolution of the radius valley around low mass stars from and

167 citations · 2.6k across the 78 of their papers we have counts for

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Showing 2021Show all

11 papers · 1 filter

astro-ph.EP2021★ 1 cited

TOI 560 : Two Transiting Planets Orbiting a K Dwarf Validated with iSHELL, PFS and HIRES RVs

Mohammed El Mufti, Peter P. Plavchan, Howard Isaacson +92

We validate the presence of a two-planet system orbiting the 0.15--1.4 Gyr K4 dwarf TOI 560 (HD 73583). The system consists of an inner moderately eccentric transiting mini-Neptune…

astro-ph.EP2021★ 50 cited

The young HD 73583 (TOI-560) planetary system: Two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

O. Barragán, D. J. Armstrong, D. Gandolfi +103

We present the discovery and characterisation of two transiting planets observed by \textit{TESS} in the light curves of the young and bright (V=9.67) star HD73583 (TOI-560). We pe…

astro-ph.EP2021★ 17 cited

The LHS 1678 System: Two Earth-Sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc

Michele L. Silverstein, Joshua E. Schlieder, Thomas Barclay +48

We present the TESS discovery of the LHS 1678 (TOI-696) exoplanet system, comprised of two approximately Earth-sized transiting planets and a likely astrometric brown dwarf orbitin…

astro-ph.EP2021★ 37 cited

Characterizing exoplanetary atmospheres at high resolution with SPIRou: Detection of water on HD 189733 b

Anne Boucher, Antoine Darveau-Bernier, Stefan Pelletier +29

We present the first exoplanet atmosphere detection made as part of the SPIRou Legacy Survey, a Large Observing Program of 300 nights exploiting the capabilities of SPIRou, the new…

astro-ph.EP2021★ 45 cited

TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet

Ares Osborn, David J. Armstrong, Bryson Cale +125

We present the bright (V), multi-planet system TOI-431, characterised with photometry and radial velocities. We estimate the stellar rotation period to be $30.5 \pm…

astro-ph.EP2021★ 26 cited

Giants Transiting Giants I: A Non-inflated Hot Jupiter Orbiting a Massive Subgiant

Nicholas Saunders, Samuel K. Grunblatt, Daniel Huber +27

While the population of confirmed exoplanets continues to grow, the sample of confirmed transiting planets around evolved stars is still limited. We present the discovery and confi…

astro-ph.EP2021★ 64 cited

A More Precise Mass for GJ 1214 b and the Frequency of Multi-Planet Systems Around Mid-M Dwarfs

Ryan Cloutier, David Charbonneau, Drake Deming +2

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 spectrogr…

astro-ph.EP2021★ 44 cited

An ultra-short-period transiting super-Earth orbiting the M3 dwarf TOI-1685

P. Bluhm, E. Palle, K. Molaverdikhani +51

Dynamical histories of planetary systems, as well as atmospheric evolution of highly irradiated planets, can be studied by characterizing the ultra-short-period planet population,…

astro-ph.EP2021★ 1 cited

TOI-1634 b: an Ultra-Short Period Keystone Planet Sitting Inside the M Dwarf Radius Valley

R. Cloutier, D. Charbonneau, K. G. Stassun +63

Studies of close-in planets orbiting M dwarfs have suggested that the M dwarf radius valley may be well-explained by distinct formation timescales between enveloped terrestrials, a…

astro-ph.EP2021★ 61 cited

TESS Hunt for Young and Maturing Exoplanets (THYME) IV: Three small planets orbiting a 120 Myr-old star in the Pisces--Eridanus stream

Elisabeth R. Newton, Andrew W. Mann, Adam L. Kraus +50

Young exoplanets can offer insight into the evolution of planetary atmospheres, compositions, and architectures. We present the discovery of the young planetary system TOI 451 (TIC…

astro-ph.EP2021★ 37 cited

Mass and density of the transiting hot and rocky super-Earth LHS 1478 b (TOI-1640 b)

M. G. Soto, G. Anglada-Escudé, S. Dreizler +52

One of the main objectives of the Transiting Exoplanet Survey Satellite ({TESS}) mission is the discovery of small rocky planets around relatively bright nearby stars. Here, we rep…