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Polarization properties of photospheric emission from relativistic, collimated outflows
Christoffer Lundman, Asaf Pe'er, Felix Ryde
We consider the polarization properties of photospheric emission originating in jets consisting of a highly relativistic core of opening angle theta_j and Lorentz factor Gamma_0, a…
XIPE: the X-ray Imaging Polarimetry Explorer
Paolo Soffitta, Xavier Barcons, Ronaldo Bellazzini +96
X-ray polarimetry, sometimes alone, and sometimes coupled to spectral and temporal variability measurements and to imaging, allows a wealth of physical phenomena in astrophysics to…
Variable jet properties in GRB110721A: Time resolved observations of the jet photosphere
Shabnam Iyyani, Felix Ryde, Magnus Axelsson +8
{\it Fermi Gamma-ray Space Telescope} observations of GRB110721A have revealed two emission components from the relativistic jet: emission from the photosphere, peaking at $\sim 10…
Time-resolved Analysis of Fermi GRBs with Fast and Slow-Cooled Synchrotron Photon Models
J. M. Burgess, R. D. Preece, V. Connaughton +20
Time-resolved spectroscopy is performed on eight bright, long gamma-ray bursts (GRBs) dominated by single emission pulses that were observed with the {\it Fermi Gamma-ray Space Tel…
The First Fermi LAT Gamma-Ray Burst Catalog
LAT Collaboration
In three years of observations since the beginning of nominal science operations in August 2008, the Large Area Telescope (LAT) on board the Fermi Gamma Ray Space Telescope has obs…