142 citations · 502 across the 15 of their papers we have counts for
15 papers
The Ultra-Cool Dwarf Sample III: Seven new multiple systems containing at least one DR2 ultra-cool dwarf
F. Marocco, R. L. Smart, E. E. Mamajek +8
We present ten new ultra-cool dwarfs in seven wide binary systems discovered using DR2 data, identified as part of our Ultra-Cool Dwarf Sample proje…
Stars and brown dwarfs in the sigma Orionis cluster. IV. IDS/INT and OSIRIS/GTC spectroscopy and Gaia DR2 astrometry
J. A. Caballero, A. de Burgos, F. J. Alonso-Floriano +3
Context. Only a few open clusters are as important for the study of stellar and substellar objects, and their formation and evolution, as the young sigma Orionis cluster. However,…
A candidate super-Earth planet orbiting near the snow line of Barnard's star
I. Ribas, M. Tuomi, A. Reiners +60
At a distance of 1.8 parsecs, Barnard's star (Gl 699) is a red dwarf with the largest apparent motion of any known stellar object. It is the closest single star to the Sun, second…
Wide sigma Orionis binaries resolved by UKIDSS
J. A. Caballero, I. Novalbos, T. Tobal +1
In spite of its importance for the study of star formation at all mass domains, the nearby young sigma Orionis cluster still lacks a comprehensive survey for multiplicity. We try t…
Stars and brown dwarfs in the sigma Orionis cluster. III. OSIRIS/GTC low-resolution spectroscopy of variable sources
J. A. Caballero, A. Cabrera-Lavers, D. Garcia-Alvarez +1
Context. Although many studies have been performed so far, there are still dozens of low-mass stars and brown dwarfs in the young sigma Orionis open cluster without detailed spectr…
The substellar mass function in the central region of the open cluster Praesepe from deep LBT observations
Wei Wang, Steve Boudreault, Bertrand Goldman +3
Studies of the mass function (MF) of open clusters of different ages allow us to probe the efficiency with which brown dwarfs evaporate from clusters to populate the field. Surveys…