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Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307
Mikko Tuomi, Guillem Anglada-Escude, Enrico Gerlach +5
The K2.5 dwarf HD 40307 has been reported to host three super-Earths. The system lacks massive planets and is therefore a potential candidate for having additional low-mass planeta…
Identifying the young low-mass stars within 25 pc. II. Distances, kinematics and group membership
Evgenya L. Shkolnik, Guillem Anglada-Escude, Michael C. Liu +5
We have conducted a kinematic study of 165 young M dwarfs with ages of <300 Myr. Our sample is composed of stars and brown dwarfs with spectral types ranging from K7 to L0, detecte…
A planetary system around the nearby M dwarf GJ 667C with at least one super-Earth in its habitable zone
Guillem Anglada-Escudé, Pamela Arriagada, Steven S. Vogt +14
We re-analyze 4 years of HARPS spectra of the nearby M1.5 dwarf GJ 667C available through the ESO public archive. The new radial velocity (RV) measurements were obtained using a ne…
The HARPS-TERRA project I. Description of the algorithms, performance and new measurements on a few remarkable stars observed by HARPS
Guillem Anglada-Escudé, R. Paul Butler
Doppler spectroscopy has uncovered or confirmed all the known planets orbiting nearby stars. Two main techniques are used to obtain precision Doppler measurements at optical wavele…