TRIDENT: a rapid 3D radiative-transfer model for exoplanet transmission spectra

RJ MacDonald, NK Lewis - The Astrophysical Journal, 2022 - iopscience.iop.org
Transmission spectroscopy is one of the premier methods used to probe the temperature,
composition, and cloud properties of exoplanet atmospheres. Recent studies have …

TOI-1801 b: A temperate mini-Neptune around a young M0. 5 dwarf

M Mallorquín, E Goffo, E Pallé, N Lodieu… - Astronomy & …, 2023 - aanda.org
We report the discovery, mass, and radius determination of TOI-1801 b, a temperate mini-
Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49 …

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

J Orell-Miquel, G Nowak, F Murgas, E Pallé… - Astronomy & …, 2023 - aanda.org
HD 191939 (TOI-1339) is a nearby (d= 54 pc), bright (V= 9 mag), and inactive Sun-like star
(G9 V) known to host a multi-planet transiting system. Ground-based spectroscopic …

TOI-674b: An oasis in the desert of exo-Neptunes transiting a nearby M dwarf

F Murgas, N Astudillo-Defru, X Bonfils… - Astronomy & …, 2021 - aanda.org
Context. The NASA mission TESS is currently doing an all-sky survey from space to detect
transiting planets around bright stars. As part of the validation process, the most promising …

A transiting, temperate mini-Neptune orbiting the M dwarf TOI-1759 unveiled by TESS

N Espinoza, E Pallé, J Kemmer, R Luque… - The Astronomical …, 2022 - iopscience.iop.org
We report the discovery and characterization of TOI-1759 b, a temperate (400 K) sub-
Neptune-sized exoplanet orbiting the M dwarf TOI-1759 (TIC 408636441). TOI-1759 b was …

TOI-1468: A system of two transiting planets, a super-Earth and a mini-Neptune, on opposite sides of the radius valley

P Chaturvedi, P Bluhm, E Nagel, AP Hatzes… - Astronomy & …, 2022 - aanda.org
We report the discovery and characterization of two small transiting planets orbiting the
bright M3. 0V star TOI-1468 (LSPM J0106+ 1913), whose transit signals were detected in …

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 …

Is the Atmosphere of the Ultra-hot Jupiter WASP-121 b Variable?

Q Changeat, JW Skinner, JYK Cho… - The Astrophysical …, 2024 - iopscience.iop.org
We present a comprehensive analysis of the Hubble Space Telescope observations of the
atmosphere of WASP-121 b, an ultra-hot Jupiter. After reducing the transit, eclipse, and …

TOI-969: a late-K dwarf with a hot mini-Neptune in the desert and an eccentric cold Jupiter

J Lillo-Box, D Gandolfi, DJ Armstrong… - Astronomy & …, 2023 - aanda.org
Context. The current architecture of a given multi-planetary system is a key fingerprint of its
past formation and dynamical evolution history. Long-term follow-up observations are key to …

Correcting Exoplanet Transmission Spectra for Stellar Activity with an Optimized Retrieval Framework

A Thompson, A Biagini, G Cracchiolo… - The Astrophysical …, 2024 - iopscience.iop.org
The chromatic contamination that arises from photospheric heterogeneities, eg, spots and
faculae on the host star presents a significant noise source for exoplanet transmission …