Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 6283

GRB 070411: OA redshift
2007-04-12T09:22:01Z (17 years ago)
Pall Jakobsson at U Hertfordshire <>
Pall Jakobsson (U. Hertfordshire), Daniele Malesani,
Christina C. Thoene, Johan P. U. Fynbo, Jens Hjorth
(DARK, NBI), Andreas O. Jaunsen (U. Oslo),
Michael I. Andersen (Potsdam) and Paul M. Vreeswijk
(ESO), report on behalf of a larger collaboration:

Using FORS2 on the Very Large Telescope, we have obtained
2*10 min spectra (grism 1400V) of the optical afterglow
of GRB 070411 (Moretti et al., GCN 6267) on April 12.05.
The combined spectrum displays several absorption features,
including Ly-alpha, C II, C II*, Si II, Si IV and Fe II,
corresponding to a redshift of z = 2.954 (based on a
preliminary wavelength calibration).

We thank the Paranal staff for excellent support,
especially Leo Vanzi and Thomas Rivinius.
Looking for U.S. government information and services? Visit