activity
20202026
most citedThe Field Substellar Mass Function Based on the Full-sky 20-pc Census of 525 L, T, and Y Dwarfs

171 citations · 537 across the 30 of their papers we have counts for

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6 papers · 1 filter

astro-ph.EP2026

A High-Resolution Spectroscopic Survey of Directly Imaged Companion Hosts: III. Characterization of the Cold Imaged Planet Hosts AF Lep A and Indi A

Aneesh Baburaj, Quinn M. Konopacky, Christopher A. Theissen +3

JWST has enabled the measurement of carbon, oxygen, and sulfur abundances in the atmospheres of directly imaged planets. Interpretation of these abundances from a planet formation…

astro-ph.EP2026

TOI-4616 b: a benchmark Earth-sized planet transiting a nearby M4 dwarf

F. Zong Lang, B. O. Demory, Y. Gomez Maqueo Chew +44

Rocky exoplanets are particularly abundant around M-type stars. Their small radii and low luminosities provide favourable conditions for detecting transiting terrestrial planets an…

astro-ph.EP2025★ 3 cited

A High-Resolution Spectroscopic Survey of Directly Imaged Companion Hosts: II. Diversity in C/O Ratios among Host Stars

Aneesh Baburaj, Quinn M. Konopacky, Christopher A. Theissen +2

The era of JWST has enabled measurements of abundances of elements such as C, O, and even Na, S, K, and Fe in planetary atmospheres to very high precisions (0.1 dex). Accurat…

astro-ph.EP2024★ 9 cited

A High-Resolution Spectroscopic Survey of Directly Imaged Companion Hosts: I. Determination of diagnostic stellar abundances for planet formation and composition

Aneesh Baburaj, Quinn M. Konopacky, Christopher A. Theissen +6

We present the first results of an extensive spectroscopic survey of directly imaged planet host stars. The goal of the survey is the measurement of stellar properties and abundanc…

astro-ph.EP2024★ 16 cited

Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3

Michaël Gillon, Peter P. Pedersen, Benjamin V. Rackham +81

Located at the bottom of the main sequence, ultracool dwarf stars are widespread in the solar neighbourhood. Nevertheless, their extremely low luminosity has left their planetary p…

astro-ph.EP2021

Ross 19B: An Extremely Cold Companion Discovered via the Backyard Worlds: Planet 9 Citizen Science Project

Adam C. Schneider, Aaron M. Meisner, Jonathan Gagne +27

Through the Backyard Worlds: Planet 9 citizen science project, we have identified a wide-separation (10', 9900 au projected) substellar companion to the nearby (1…