Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
Announcing GCN Classic Migration Survey, End of Legacy Circulars Email. See news and announcements

GCN Circular 11089

Subject
GRB100814A: Magellan Echellette Observations
Date
2010-08-14T05:09:50Z (14 years ago)
From
Hsiao-Wen Chen at U Chicago <hchen@oddjob.uchicago.edu>
John O'Meara (Saint Michael's College), Hsiao-Wen Chen (UChicago), Jason 
X. Prochaska (UC Santa Cruz)  report on behalf of a larger collaboration:

"We observed the afterglow of GRB100814A reported by Schaefer et al. (GCN
11086) and confirmed by Gronwall et al. (GCN 11088) using the MagE
echellette spectrograph on the Magellan Clay Telescope.  The observations
started at UT 04:46 on August 14, 2010, ~ one hour after the inital 
trigger.  We obtained a 900s exposure.  Our preliminary reduction shows 
that the afterglow spectrum displays absorption transitions due to AlIII, 
FeII, and MgII at redshift z=1.44, which we tentatively identify as the 
host redsdhift of the GRB.

Further analysis is underway.

This message may be cited."
Looking for U.S. government information and services? Visit USA.gov