American Astronomical Society, Astrophysical Journal, 2(693), p. 1236-1249, 2009
DOI: 10.1088/0004-637x/693/2/1236
Full text: Download
Long-duration Gamma-Ray Bursts (GRBs) are linked to the collapse of massive stars and their hosts are exclusively identified as active, star-forming galaxies. Four long GRBs observed at high spectral resolution at redshift 1.5