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Spectral evolution of the X-ray nova XTE J1859+226 during its outburst observed by BeppoSAX and RXTE
R. Farinelli, L. Amati, N. Shaposhnikov +7
We report results of an extensive analysis of the X-ray nova XTE J1859+226 observed with BeppoSAX and RXTE during its 1999 outburst. We modelled the source spectrum with a multicol…
Accurate classification of 29 objects detected in the 39 months Palermo Swift/BAT hard X-ray catalogue
P. Parisi, N. Masetti, E. Jiménez-Bailón +15
Through an optical campaign performed at 4 telescopes located in the northern and the southern hemispheres, plus archival data from two on-line sky surveys, we have obtained optica…
GRB 100219A with X-shooter - abundances in a galaxy at z = 4.7
C. C. Thoene, J. P. U. Fynbo, P. Goldoni +24
Abundances of galaxies at redshifts z > 4 are difficult to obtain from damped Ly α (DLA) systems in the sightlines of quasars (QSOs) due to the Ly α forest blanketing and the low n…
The Optical SN 2012bz Associated with the Long GRB 120422A
A. Melandri, E. Pian, P. Ferrero +34
The association of Type Ic SNe with long-duration GRBs is well established. We endeavor, through accurate ground-based observational campaigns, to characterize these SNe at increas…
Detailed optical and near-infrared polarimetry, spectroscopy and broadband photometry of the afterglow of GRB 091018: Polarisation evolution
K. Wiersema, P. A. Curran, T. Kruehler +30
[Abridged] A number of phenomena have been observed in GRB afterglows that defy explanation by simple versions of the standard fireball model, leading to a variety of new models. P…
The origin of the early time optical emission of Swift GRB 080310
O. M. Littlejohns, R. Willingale, P. T. O'Brien +28
We present broadband multi-wavelength observations of GRB 080310 at redshift z = 2.43. This burst was bright and long-lived, and unusual in having extensive optical and near IR fol…