924 citations · 8.7k across the 152 of their papers we have counts for
6 papers · 2 filters
Characterization of the known T type dwarfs towards the Sigma Orionis cluster
K. Peña Ramírez, M. R. Zapatero Osorio, V. J. S. Béjar
(Abridged) A total of three T type candidates (SOri70, SOri73, and SOriJ0538-0213) lying in the line of sight towards Sigma Orionis were characterized by means of near-infrared pho…
Spectroscopic follow-up of L- and T-type proper-motion member candidates in the Pleiades
M. R. Zapatero Osorio, V. J. S. Béjar, E. L. Martín +9
(Abridged) We report on the near-infrared low-resolution spectroscopy and red optical (Z-band) photometry of seven proper-motion, very low-mass substellar member candidates of the…
ExELS: an exoplanet legacy science proposal for the ESA Euclid mission. II. Hot exoplanets and sub-stellar systems
I. McDonald, E. Kerins, M. Penny +11
The Exoplanet Euclid Legacy Survey (ExELS) proposes to determine the frequency of cold exoplanets down to Earth mass from host separations of ~1 AU out to the free-floating regime…
Search for free-floating planetary-mass objects in the Pleiades
M. R. Zapatero Osorio, M. C. Gálvez Ortiz, G. Bihain +8
(Abridged) We aim at identifying the least massive population of the solar metallicity, young (120 Myr), nearby (133.5 pc) Pleiades star cluster with the ultimate goal of understan…
Trigonometric parallaxes of young field L dwarfs
M. R. Zapatero Osorio, V. J. S. Béjar, P. Miles-Páez +3
(Abridged) We aim to determine the trigonometric parallaxes and proper motions of a sample of ten field L0-L5 dwarfs with spectroscopic evidence for low-gravity atmospheres. We obt…
2MASS J154043.42-510135.7: a new addition to the 5 pc population
A. Perez-Garrido, N. Lodieu, V. J. S. Bejar +4
The aim of the project is to find the stars nearest to the Sun and to contribute to the completion of the stellar and substellar census of the solar neighbourhood. We identified a…