activity
20102026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations · 22.5k across the 277 of their papers we have counts for

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Showing 2019 · astro-ph.EPShow all

8 papers · 2 filters

astro-ph.EP2019★ 20 cited

An extremely low-density and temperate giant exoplanet

A. Santerne, L. Malavolta, M. R. Kosiarek +68

Transiting extrasolar planets are key objects in the study of the formation, migration, and evolution of planetary systems. In particular, the exploration of the atmospheres of gia…

astro-ph.EP2019★ 47 cited

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

T. A. Lopez, S. C. C. Barros, A. Santerne +36

The detection of low-mass transiting exoplanets in multiple systems brings new constraints to planetary formation and evolution processes and challenges the current planet formatio…

astro-ph.EP2019★ 130 cited

A giant exoplanet orbiting a very low-mass star challenges planet formation models

J. C. Morales, A. J. Mustill, I. Ribas +179

Statistical analyses from exoplanet surveys around low-mass stars indicate that super-Earth and Neptune-mass planets are more frequent than gas giants around such stars, in agreeme…

astro-ph.EP2019★ 155 cited

The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegarden's Star

M. Zechmeister, S. Dreizler, I. Ribas +182

Context. Teegarden's Star is the brightest and one of the nearest ultra-cool dwarfs in the solar neighbourhood. For its late spectral type (M7.0V), the star shows relatively little…

astro-ph.EP2019★ 66 cited

HD 213885b: A transiting 1-day-period super-Earth with an Earth-like composition around a bright () star unveiled by TESS

Néstor Espinoza, Rafael Brahm, Thomas Henning +60

We report the discovery of the 1.008-day, ultra-short period (USP) super-Earth HD 213885b (TOI-141b) orbiting the bright () star HD 213885 (TOI-141, TIC 403224672), detected…

astro-ph.EP2019★ 33 cited

Gliese 49: Activity evolution and detection of a super-Earth

M Perger, G Scandariato, I Ribas +40

Small planets around low-mass stars often show orbital periods in a range that corresponds to the temperate zones of their host stars which are therefore of prime interest for plan…

astro-ph.EP2019

Exoplanet host-star properties: the active environment of exoplanets

John P. Pye, David Barrado, Rafael A. Garcia +12

The primary objectives of the ExoplANETS-A project are to: establish new knowledge on exoplanet atmospheres; establish new insight on influence of the host star on the planet atmos…

astro-ph.EP2019★ 130 cited

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) - II. A broadened sodium feature on the ultra-hot giant WASP-76b

J. V. Seidel, D. Ehrenreich, A. Wyttenbach +18

High-resolution optical spectroscopy is a powerful tool to characterise exoplanetary atmospheres from the ground. The sodium D lines, with their large cross sections, are especiall…