92 citations · 180 across the 4 of their papers we have counts for
8 papers · 1 filter
ESO VLT optical spectroscopy of BL Lacertae objects. III. An extension of the sample
B. Sbarufatti, S. Ciprini, J. Kotilainen +4
We present results of an ongoing program at the ESO VLT for spectroscopy of BL Lac objects lacking a firm redshift estimate and here we report on 15 objects. For 11 sources we conf…
Multiwavelength analysis of the intriguing GRB 061126: the reverse shock scenario and magnetization
A. Gomboc, S. Kobayashi, C. Guidorzi +30
We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multi-color optical imaging from ten ground-based telescopes. G…
The XMM-Newton bright serendipitous survey. Identification and optical spectral properties
A. Caccianiga, P. Severgnini, R. Della Ceca +12
AIMS: We present the optical classification and redshift of 348 X-ray selected sources from the XMM-Newton Bright Serendipitous Survey (XBS) which contains a total of 400 objects (…
GRB 070311: a direct link between the prompt emission and the afterglow
C. Guidorzi, S. D. Vergani, S. Sazonov +30
We present prompt gamma-ray, early NIR/optical, late optical and X-ray observations of the peculiar GRB 070311 discovered by INTEGRAL, in order to gain clues on the mechanisms resp…
Optical spectroscopy of BL Lacertae objects. Broad lines, companion galaxies and redshift lower limits
B. Sbarufatti, R. Falomo, A. Treves +2
Aims: We present optical spectroscopy of a sample of BL Lac objects, to determine their redshift, to study their broad emission line properties and to characterize their close envi…
ESO-VLT optical spectroscopy of BL Lac objects: II. New redshifts, featureless objects and classification assessments
B. Sbarufatti, A. Treves, R. Falomo +3
We report on ESO Very Large Telescope optical spectroscopy of 42 BL Lacertae objects of unknown redshift. Nuclear emission lines were observed in 12 objects, while for another six…