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A photometric redshift of for the \agile GRB 080514B
A. Rossi, A. de Ugarte Postigo, P. Ferrero +26
Aims: The AGILE gamma-ray burst GRB 080514B is the first burst with detected emission above 30 MeV and an optical afterglow. However, no spectroscopic redshift for this burst is kn…
Swift-UVOT detection of GRB 050318
M. Still, P. W. A. Roming, K. O. Mason +27
We present observations of GRB 050318 by the Ultra-Violet and Optical Telescope (UVOT) on-board the Swift observatory. The data are the first detections of a Gamma Ray Burst (GRB)…
Ly-alpha emission from GRB host galaxies
J. P. U. Fynbo, P. Moller, B. Thomsen +8
Ly-alpha emission is indicative of on-going star formation in a dust-poor environment. Ly-alpha imaging is therefore a probe of the star formation rate and of the dust-content of G…
Soft X-ray emission lines from a relativistic accretion disk in MCG -6-30-15 and Mrk 766
G. Branduardi-Raymont, M. Sako, S. M. Kahn +3
XMM-Newton Reflection Grating Spectrometer (RGS) spectra of the Narrow Line Seyfert 1 galaxies MCG -6-30-15 and Mrk 766 are physically and spectroscopically inconsistent with stand…