2 citations · 3 across the 3 of their papers we have counts for
20 papers · 1 filter
Stars and brown dwarfs, spatial distribution, multiplicity, X-rays, discs, and the complete mass function of the sigma Orionis cluster
Jose A. Caballero
The young sigma Orionis cluster in the Orion Belt is an incomparable site for studying the formation and evolution of high-mass, solar-like, and low-mass stars, brown dwarfs, and s…
Low-resolution spectroscopy and spectral energy distributions of selected sources towards sigma Orionis
J. A. Caballero, L. Valdivielso, E. L. Martin +3
Aims: We investigated in detail nine sources in the direction of the young sigma Orionis cluster, which is considered a unique site for studying stellar and substellar formation. T…
New deep XMM-Newton observations to the west of the sigma Orionis cluster
J. Lopez-Santiago, J. A. Caballero
Aims: The objective of this study is to determine the general X-ray properties of the young stars in the external regions of the sigma Orionis cluster (tau ~ 3 Ma, d ~ 385 pc) and…
Young stars and brown dwarfs surrounding Alnilam (eps Ori) and Mintaka (del Ori)
J. A. Caballero, E. Solano
Aims: We look for new regions for the search of substellar objects. Methods: Two circular areas, 45 arcmin-radius each, centred on the young massive star systems Alnilam and Mintak…
Science with the new generation high energy gamma- ray experiments
M. Alvarez, D. D'Armiento, G. Agnetta +197
This Conference is the fifth of a series of Workshops on High Energy Gamma- ray Experiments, following the Conferences held in Perugia 2003, Bari 2004, Cividale del Friuli 2005, El…
Stars and brown dwarfs in the sigma Orionis cluster: the Mayrit catalogue
Jose A. Caballero
The young sigma Orionis cluster is an indispensable basis for understanding the formation and evolution of stars, brown dwarfs and planetary-mass objects. Our knowledge of its stel…