activity
19972022
most citedSpectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes

596 citations · 7.1k across the 68 of their papers we have counts for

collaborators
Showing 2018Show all

6 papers · 1 filter

astro-ph.EP2018

Bright Opportunities for Atmospheric Characterization of Small Planets: Masses and Radii of K2-3 b, c, d and GJ3470 b from Radial Velocity Measurements and Spitzer Transits

Molly R. Kosiarek, Ian J. M. Crossfield, Kevin K. Hardegree-Ullman +36

We report improved masses, radii, and densities for four planets in two bright M-dwarf systems, K2-3 and GJ3470, derived from a combination of new radial velocity and transit obser…

astro-ph.EP2018

K2-263b: A 50-day period sub-Neptune with a mass measurement using HARPS-N

A. Mortier, A. S. Bonomo, V. M. Rajpaul +32

This paper reports on the validation and mass measurement of K2-263b, a sub-Neptune orbiting a quiet G9V star. Using K2 data from campaigns C5 and C16, we find this planet to have…

astro-ph.EP2018

TESS Discovery of a Transiting Super-Earth in the Mensae System

Chelsea X. Huang, Jennifer Burt, Andrew Vanderburg +45

We report the detection of a transiting planet around Mensae (HD 39091), using data from the Transiting Exoplanet Survey Satellite (TESS). The solar-type host star is unusually…

astro-ph.SR2018

Multiplicity among solar-type stars IV. The CORAVEL radial velocities and the spectroscopic orbits of nearby K dwarfs

Jean-Louis Halbwachs, Michel Mayor, Stéphane Udry

Context. The statistical properties of binary stars are clues for understanding their formation process. A radial velocity survey was carried on amongst nearby G-type stars and the…

astro-ph.EP2018

An accurate mass determination for Kepler-1655b, a moderately-irradiated world with a significant volatile envelope

R. D. Haywood, A. Vanderburg, A. Mortier +32

We present the confirmation of a small, moderately-irradiated (F = 155 +/- 7 Fearth) Neptune with a substantial gas envelope in a P=11.8728787+/-0.0000085-day orbit about a quiet,…

astro-ph.EP2018

Eyes on K2-3: A system of three likely sub-Neptunes characterized with HARPS-N and HARPS

M. Damasso, A. S. Bonomo, N. Astudillo-Defru +67

M-dwarf stars are promising targets for identifying and characterizing potentially habitable planets. K2-3 is a nearby (45 pc), early-type M dwarf hosting three small transiting pl…