139 citations · 211 across the 5 of their papers we have counts for
5 papers
An IPHAS-based search for accreting very low-mass objects using VO tools
L. Valdivielso, E. L. Martin, H. Bouy +6
The main goal of this paper is to prove that accreting very low-mass stars and brown dwarfs can be identified in IPHAS, a Halpha emission survey of the northern Milky Way.Full expl…
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…
Follow-up observations of binary ultra-cool dwarfs
H. Bouy, E. L. Martin, W. Brandner +12
Astrometric observations of resolved binaries provide estimates of orbital periods and will eventually lead to measurement of dynamical masses. Only a few very low mass star and br…
A very cool brown dwarf in UKIDSS DR1
S. J. Warren, D. J. Mortlock, S. K. Leggett +21
(abridged) We report the discovery of a very cool brown dwarf, ULAS J003402.77-005206.7 (ULAS J0034-00), identified in UKIDSS DR1. We provide optical, near-infrared, and mid-infrar…
GRB 051028: an intrinsically faint GRB at high redshift?
A. J. Castro-Tirado, M. Jelinek, S. B. Pandey +16
We present multiwavelength observations of the gamma-ray burst GRB 051028 detected by HETE-2 in order to derive its afterglow emission parameters and to determine the reason for it…