Showing 2024 · astro-ph.EPShow all

25 papers · 2 filters

astro-ph.EP2024★ 12 cited

A possible misaligned orbit for the young planet AU Mic c

H. Yu, Z. Garai, M. Cretignier +98

The AU Microscopii planetary system is only 24 Myr old, and its geometry may provide clues about the early dynamical history of planetary systems. Here, we present the first measur…

astro-ph.EP2024★ 2 cited

CHEOPS observations confirm nodal precession in the WASP-33 system

A. M. S. Smith, Sz. Csizmadia, V. Van Grootel +86

Aims: We aim to observe the transits and occultations of WASP-33b, which orbits a rapidly-rotating Scuti pulsator, with the goal of measuring the orbital obliquity via the grav…

astro-ph.EP2024★ 3 cited

A joint effort to discover and characterize two resonant mini Neptunes around TOI-1803 with TESS, HARPS-N and CHEOPS

T. Zingales, L. Malavolta, L. Borsato +130

We present the discovery of two mini Neptunes near a 2:1 orbital resonance configuration orbiting the K0 star TOI-1803. We describe their orbital architecture in detail and suggest…

astro-ph.EP2024★ 10 cited

A close outer companion to the ultra-hot Jupiter TOI-2109 b?

J. -V. Harre, A. M. S. Smith, S. C. C. Barros +86

Hot Jupiters with close-by planetary companions are rare, with only a handful of them having been discovered so far. This could be due to their suggested dynamical histories, leadi…

astro-ph.EP2024★ 42 cited

CRIRES+ and ESPRESSO reveal an atmosphere enriched in volatiles relative to refractories on the ultra-hot Jupiter WASP-121b

Stefan Pelletier, Björn Benneke, Yayaati Chachan +11

One of the outstanding goals of the planetary science community is to measure the present-day atmospheric composition of planets and link this back to formation. As giant planets a…

astro-ph.EP2024★ 5 cited

Large Interferometer For Exoplanets (LIFE). XIV. Finding terrestrial protoplanets in the galactic neighborhood

Lorenzo Cesario, Tim Lichtenberg, Eleonora Alei +62

The increased brightness temperature of young rocky protoplanets during their magma ocean epoch makes them potentially amenable to atmospheric characterization to distances from th…