On the Lyalpha emission from gamma-ray burst host galaxies: Evidence for low metallicities

  title={On the Lyalpha emission from gamma-ray burst host galaxies: Evidence for low metallicities},
  author={Johan P. U. Fynbo and P. Jakobsson and Palle M{\o}ller and Jens Hjorth and Bjarne Thomsen and Michael I. Andersen and Andrew S. Fruchter and Javier Gorosabel and Stephen T. Holland and C{\'e}dric Ledoux and Holger Pedersen and James E. Rhoads and M. Weidinger and Ralph Wijers},
  journal={Astronomy and Astrophysics},
We report on the results of a search for Ly emission from the host galaxy of the z= 2:140 GRB 011211 and other galaxies in its surrounding field. We detect Ly emission from the host as well as from six other galaxies in the field. The restframe equivalent width of the Ly line from the GRB 011211 host is about 21 A. This is the fifth detection of Ly emission out of five possible detections from GRB host galaxies, strongly indicating that GRB hosts, at least at high redshifts, are Ly emitters… 

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