Showing 2025 · astro-ph.EPShow all

24 papers · 2 filters

astro-ph.EP2025★ 6 cited

A free-floating-planet microlensing event caused by a Saturn-mass object

Subo Dong, Zexuan Wu, Yoon-Hyun Ryu +39

A population of free-floating planets is known from gravitational microlensing surveys. None have a directly measured mass, owing to a degeneracy with the distance, but the populat…

astro-ph.EP2025

Giant Outer Transiting Exoplanet Mass (GOTEM) Survey.VII. TOI-6041: a multi-planet system including a warm Neptune exhibiting strong TTVs

N. Heidari, A. Alnajjarine, H. P. Osborn +101

We present the characterization of the TOI-6041 system, a bright () G7-type star hosting at least two planets. The inner planet, TOI-6041b, is a warm Neptune wit…

astro-ph.EP2025★ 1 cited

Interstellar Ices as Carriers of Supernova Material to the Early Solar System

Martin Bizzarro, Martin Schiller, Jesper Holst +10

Planetary materials show systematic variations in their nucleosynthetic isotope compositions that resonate with orbital distance. The origin of this pattern remains debated, limiti…

astro-ph.EP2025★ 2 cited

Magnetohydrodynamic simulation assessment of a potential near-ultraviolet early ingress in WASP-189b

Y. Duann, S. -H. Lai, H. J. Hoeijmakers +8

Ultra-hot Jupiters (UHJs) in close orbits around early-type stars provide natural laboratories for studying atmospheric escape and star-planet interactions under extreme irradiatio…

astro-ph.EP2025★ 11 cited

The cosmochemistry of planetary systems

Martin Bizzarro, Anders Johansen, Caroline Dorn

Planets form and obtain their compositions from the leftover material present in protoplanetary disks of dust and gas surrounding young stars. The chemical make-up of a disk influe…

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…