activity
20202026
most citedChemical Fingerprints of Formation in Rocky Super-Earths' Data

94 citations · 319 across the 25 of their papers we have counts for

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10 papers · 1 filter

astro-ph.EP2025★ 3 cited

Evidence of 1:1 slope between rocky Super-Earths and their host stars

Mykhaylo Plotnykov, Diana Valencia, Alejandra Ross +2

The relationship between the composition of rocky exoplanets and their host stars is fundamental to understanding planetary formation and evolution. However, previous studies have…

astro-ph.EP2025★ 5 cited

NIRPS and TESS reveal a peculiar system around the M dwarf TOI-756: A transiting sub-Neptune and a cold eccentric giant

Léna Parc, François Bouchy, Neil J. Cook +148

The Near InfraRed Planet Searcher (NIRPS) joined HARPS on the 3.6-m ESO telescope at La Silla Observatory in April 2023, dedicating part of its Guaranteed Time Observations (GTO) p…

astro-ph.EP2025

A Thick Volatile Atmosphere on the Ultrahot Super-Earth TOI-561 b

Johanna K. Teske, Nicole L. Wallack, Anjali A. A. Piette +10

Ultrashort-period (USP) exoplanets -- with R and periods 1 day -- are expected to be stripped of volatile atmospheres by intense host star irradiation…

astro-ph.EP2025

Terrestrial Exoplanet Internal Structure Constraints Enabled by Comprehensive Host Star Characterization Reveal that Terrestrial Planets in Mean-motion Resonances are Water Rich

Alejandra Ross, Henrique Reggiani, Kevin C. Schlaufman +2

Exoplanet mass and radius inferences fundamentally rely on host star mass and radius inferences. Despite the importance of host star mass, radius, and elemental abundance inference…

astro-ph.IM2025★ 29 cited

NIRPS joining HARPS at ESO 3.6 m. On-sky performance and science objectives

Francois Bouchy, Rene Doyon, Francesco Pepe +131

The Near-InfraRed Planet Searcher (NIRPS) is a high-resolution, high-stability near-infrared (NIR) spectrograph equipped with an AO system. Installed on the ESO 3.6-m telescope, it…

astro-ph.EP2025★ 11 cited

Diving into the planetary system of Proxima with NIRPS -- Breaking the metre per second barrier in the infrared

Alejandro Suárez Mascareño, Étienne Artigau, Lucile Mignon +138

We obtained 420 high-resolution spectra of Proxima, over 159 nights, using the Near Infra Red Planet Searcher (NIRPS). We derived 149 nightly binned radial velocity measurements wi…

astro-ph.EP2025★ 6 cited

NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69b

Romain Allart, Yann Carteret, Vincent Bourrier +119

Near-infrared high-resolution echelle spectrographs unlock access to fundamental properties of exoplanets, from their atmospheric escape and composition to their orbital architectu…

astro-ph.EP2025

Blind search for activity-sensitive lines in the near-infrared using HARPS and NIRPS observations of Proxima and Gl 581

João Gomes da Silva, Elisa Delgado-Mena, Nuno C. Santos +145

Stellar activity variability is one of the main obstacles to the detection of Earth-like planets using the RV method. The aim of this work is to measure the effect of activity in t…

astro-ph.EP2025★ 8 cited

Hydride ion continuum hides absorption signatures in the NIRPS near-infrared transmission spectrum of the ultra-hot gas giant WASP-189b

Valentina Vaulato, Stefan Pelletier, David Ehrenreich +77

Ultra-hot Jupiters showcase extreme atmospheric conditions, including molecular dissociation, ionisation, and significant day-to-night temperature contrasts. Their close proximity…

astro-ph.EP2025

TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Rena A. Lee, Fei Dai, Andrew W. Howard +71

We report the confirmation of TOI-6324 b, an Earth-sized (1.059 0.041 R) ultra-short-period (USP) planet orbiting a nearby (20 pc) M dwarf. Using the newly com…