An Earth-sized Planet on the Verge of Tidal Disruption

F Dai, AW Howard, S Halverson… - The Astronomical …, 2024 - iopscience.iop.org
Abstract TOI-6255 b (GJ 4256) is an Earth-sized planet (1.079±0.065 R⊕) with an orbital
period of only 5.7 hr. With the newly commissioned Keck Planet Finder and CARMENES …

The CARMENES search for exoplanets around M dwarfs-Wolf 1069 b: Earth-mass planet in the habitable zone of a nearby, very low-mass star

D Kossakowski, M Kürster, T Trifonov… - Astronomy & …, 2023 - aanda.org
We present the discovery of an Earth-mass planet (M b sin i= 1.26±0.21 M⊕) on a 15.6 d
orbit of a relatively nearby (d~ 9.6 pc) and low-mass (0.167±0.011 M⊙) M5. 0 V star, Wolf …

The Initial Mass Function Based on the Full-sky 20 pc Census of∼ 3600 Stars and Brown Dwarfs

JD Kirkpatrick, F Marocco, CR Gelino… - The Astrophysical …, 2024 - iopscience.iop.org
A complete accounting of nearby objects—from the highest-mass white dwarf progenitors
down to low-mass brown dwarfs—is now possible, thanks to an almost complete set of …

The TIME Table: rotation and ages of cool exoplanet host stars

E Gaidos, Z Claytor, R Dungee, A Ali… - Monthly Notices of the …, 2023 - academic.oup.com
Age is a stellar parameter that is both fundamental and difficult to determine. Among middle-
aged M dwarfs, the most prolific hosts of close-in and detectable exoplanets, gyrochronology …

Company for the ultra-high density, ultra-short period sub-Earth GJ 367 b: discovery of two additional low-mass planets at 11.5 and 34 days

E Goffo, D Gandolfi, JA Egger, AJ Mustill… - The Astrophysical …, 2023 - iopscience.iop.org
GJ 367 is a bright (V≈ 10.2) M1 V star that has been recently found to host a transiting ultra-
short period sub-Earth on a 7.7 hr orbit. With the aim of improving the planetary mass and …

A Comparison of the Composition of Planets in Single-planet and Multiplanet Systems Orbiting M dwarfs

RR Martínez, DV Martin, BS Gaudi… - The Astronomical …, 2023 - iopscience.iop.org
We investigate and compare the composition of M-dwarf planets in systems with only one
known planet (" singles") to those residing in multiplanet systems (" multis") and the …

Fleeting but Not Forgotten: The Imprint of Esca** Hydrogen Atmospheres on Super-Earth Interiors

JG Rogers, HE Schlichting… - The Astrophysical …, 2024 - iopscience.iop.org
Small, close-in exoplanets are divided into two subpopulations: super-Earths and sub-
Neptunes. Most super-Earths are thought to have lost their primordially accreted hydrogen …

A detailed analysis of the Gl 486 planetary system

JA Caballero, E González-Álvarez, M Brady… - Astronomy & …, 2022 - aanda.org
Context. The Gl 486 system consists of a very nearby, relatively bright, weakly active M3. 5 V
star at just 8 pc with a warm transiting rocky planet of about 1.3 R⊕ and 3.0 M⊕. It is ideal …

The HD 260655 system: Two rocky worlds transiting a bright M dwarf at 10 pc

R Luque, BJ Fulton, M Kunimoto, PJ Amado… - Astronomy & …, 2022 - aanda.org
We report the discovery of a multiplanetary system transiting the M0 V dwarf HD 260655 (GJ
239, TOI-4599). The system consists of at least two transiting planets, namely HD 260655 b …

A low-eccentricity migration pathway for a 13-h-period Earth analogue in a four-planet system

LM Serrano, D Gandolfi, AJ Mustill, O Barragán… - Nature …, 2022 - nature.com
It is commonly accepted that exoplanets with orbital periods shorter than one day, also
known as ultra-short-period (USP) planets, formed further out within their natal …