Exoplanet statistics and theoretical implications

W Zhu, S Dong - Annual Review of Astronomy and Astrophysics, 2021 - annualreviews.org
In the past few years, significant advances have been made in understanding the
distributions of exoplanet populations and the architecture of planetary systems. We review …

Kepler-78 and the ultra-short-period planets

JN Winn, R Sanchis-Ojeda, S Rappaport - New Astronomy Reviews, 2018 - Elsevier
Compared to the Earth, the exoplanet Kepler-78b has a similar size (1.2 R⊕) and an orbital
period a thousand times shorter (8.5 h). It is currently the smallest planet for which the mass …

The Gaia–Kepler Stellar Properties Catalog. II. Planet radius demographics as a function of stellar mass and age

TA Berger, D Huber, E Gaidos… - The Astronomical …, 2020 - iopscience.iop.org
Studies of exoplanet demographics require large samples and precise constraints on
exoplanet host stars. Using the homogeneous Kepler stellar properties derived using the …

TOI-1136 is a young, coplanar, aligned planetary system in a pristine resonant chain

F Dai, K Masuda, C Beard, P Robertson… - The Astronomical …, 2023 - iopscience.iop.org
Convergent disk migration has long been suspected to be responsible for forming planetary
systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time …

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 …

TOI-2076 and TOI-1807: two young, comoving planetary systems within 50 pc identified by TESS that are ideal candidates for further follow up

C Hedges, A Hughes, G Zhou, TJ David… - The Astronomical …, 2021 - iopscience.iop.org
We report the discovery of two planetary systems around comoving stars: TOI-2076 (TIC
27491137) and TOI-1807 (TIC 180695581). TOI-2076 is a nearby (41.9 pc) multiplanetary …

Formation of ultra-short-period planets by obliquity-driven tidal runaway

SC Millholland, C Spalding - The Astrophysical Journal, 2020 - iopscience.iop.org
Small, rocky planets have been found orbiting in extreme proximity to their host stars,
sometimes down to only∼ 2 stellar radii. These ultra-short-period planets (USPs) likely did …

The TESS-Keck survey. II. An ultra-short-period rocky planet and its siblings transiting the galactic thick-disk star TOI-561

LM Weiss, F Dai, D Huber, JM Brewer… - The Astronomical …, 2021 - iopscience.iop.org
We report the discovery of TOI-561, a multiplanet system in the galactic thick disk that
contains a rocky, ultra-short-period planet. This bright (V= 10.2) star hosts three small …

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 …

Evidence for a high mutual inclination between the cold Jupiter and transiting super Earth orbiting π Men

JW Xuan, MC Wyatt - Monthly Notices of the Royal Astronomical …, 2020 - academic.oup.com
ABSTRACT π Men hosts a transiting super Earth (P≈ 6.27 d, m≈ 4.82 M⊕, R≈ 2.04 R⊕)
discovered by TESS and a cold Jupiter (P≈ 2093 d, m sin I≈ 10.02 M Jup, e≈ 0.64) …