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4 papers · 2 filters
Spectroscopic Studies of z~5.7 and z~6.5 Galaxies: Implications for Reionization
Esther M. Hu, Lennox L. Cowie, Peter Capak +1
The recent development of large, complete samples which identify high-redshift galaxies at z~5.7 and z~6.5 from deep, wide-field surveys provides detailed information on the earlie…
On the nature of nearby GRB/SN host galaxies
J. Sollerman, G. Ostlin, J. P. U. Fynbo +3
We present and discuss optical diagnostics of the low redshift (z<0.2) galaxies that are known to have hosted supernovae associated with gamma-ray bursts (GRBs). The three galaxies…
Ly-alpha and UV emission from high-redshift GRB hosts: To what extent do GRBs trace star formation?
P. Jakobsson, G. Bjornsson, J. P. U. Fynbo +9
We report the result of a search for Ly-alpha emission from the host galaxies of the gamma-ray bursts (GRBs) 030226 (z = 1.986), 021004 (z = 2.335) and 020124 (z = 3.198). We find…
The red optical afterglow of GRB 030725
G. Pugliese, P. Møller, J. Gorosabel +6
We present a photometric study of the optical counterpart of the long-duration Gamma Ray Burst (GRB) 030725, which triggered the HETE FREGATE and WXM instruments on July 25th, 2003…