output
19942026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2023 · astro-ph.EPShow all

24 papers · 2 filters

astro-ph.EP2023

The origin and evolution of wide Jupiter Mass Binary Objects in young stellar clusters

Simon Portegies Zwart, Erwan Hochart

The recently observed population of 540 free-floating Jupiter-mass objects, including 40 dynamically soft pairs in the Trapezium cluster have raised interesting questions on their…

astro-ph.EP2023★ 64 cited

A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067

R. Luque, H. P. Osborn, A. Leleu +149

Planets with radii between that of the Earth and Neptune (hereafter referred to as sub-Neptunes) are found in close-in orbits around more than half of all Sun-like stars. Yet, thei…

astro-ph.EP2023★ 14 cited

The sulphur species in hot rocky exoplanet atmospheres

L. J. Janssen, P. Woitke, O. Herbort +4

The first JWST observations of hot Jupiters showed an unexpected detection of SO2 in their hydrogen-rich atmospheres. We investigate how much sulphur can be expected in the atmosph…

astro-ph.EP2023

No random transits in CHEOPS observations of HD 139139

R. Alonso, S. Hoyer, M. Deleuil +78

HD 139139 (a.k.a. 'The Random Transiter') is a star that exhibited enigmatic transit-like features with no apparent periodicity in K2 data. The shallow depth of the events (2…

astro-ph.EP2023★ 38 cited

Composition and thermal properties of Ganymede's surface from JWST/NIRSpec and MIRI observations

D. Bockelee-Morvan, E. Lellouch, O. Poch +21

JWST NIRSpec IFU (2.9-5.3 mu) and MIRI MRS (4.9-28.5 mu) observations were performed on both the leading and trailing hemispheres of Ganymede with a spectral resolution of ~2700. R…

astro-ph.EP2023★ 1 cited

Dust evolution in protoplanetary disks

Nienke van der Marel, Paola Pinilla

Planet formation models rely on knowledge of the physical conditions and evolutionary processes in protoplanetary disks, in particular the grain size distribution and dust growth t…