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- Centro de AstrobiologíaES10 papers
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5 papers · 1 filter
J-PLUS: Discovery and characterisation of ultracool dwarfs using Virtual Observatory tools
E. Solano, E. L. Martín, J. A. Caballero +20
Ultracool dwarfs (UCDs) are objects with spectral types equal or later than M7. Most of them have been discovered using wide-field imaging surveys. The Virtual Observatory (VO) has…
The extended halo of NGC 2682 (M 67) from Gaia DR2
R. Carrera, M. Pasquato, A. Vallenari +8
Context: NGC 2682 is a nearby open cluster, approximately 3.5 Gyr old. Dynamically, most open clusters should dissolve on shorter timescales, of ~ 1 Gyr. Having survived until now,…
Study of extremely reddened AGB stars in the Galactic bulge
F. M. Jiménez-Esteban, D. Engels
Context. Extremely reddened AGB stars lose mass at high rates of >10^-5 Msun/yr. This is the very last stage of AGB evolution, in which stars in the mass range 2.0--4.0 Msun (for s…
Proper motions of young stars in Chamaeleon. I. A Virtual Observatory study of spectroscopically confirmed members
Belén López Martí, Francisco Jiménez-Esteban, Amelia Bayo +3
(abridged) We want to provide further evidence of the origin of the proposed stellar members of Chamaeleon and to identify interlopers from the foreground εCha and ηCha association…
Identification of blue high proper motion objects in the Tycho-2 and 2MASS catalogues using Virtual Observatory tools
F. M. Jiménez-Esteban, J. A. Caballero, E. Solano
With available Virtual Observatory tools, we looked for new bright blue high proper motion objects in the entire sky: white dwarfs, hot subdwarfs, runaway OB stars, and early-type…