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 3285

GRB 050416B: optical observations
2005-04-17T03:42:11Z (19 years ago)
Alberto Castro-Tirado at LAEFF-INTA <>
M. Jelinek, A. de Ugarte Postigo (IAA-CSIC Granada),
P. Kubanek (ASU-CAS Ondrejov), T. J. Mateo Sanguino
(Univ. de Huelva), S. Castillo, J. Gorosabel, S.Guziy 
and A. J. Castro-Tirado (IAA-CSIC),


"Following the detection by SWIFT/BAT of GRB 050416B
(Hullinger et al., GCN 3279), the 0.6m BOOTES-IR
telescope at IAA's Observatorio de Sierra Nevada
responded automatically at 23:13 UT (i.e. 38 minutes
after the event). Although we are still testing the                    
telescope during the commissioning phase, and the                    
near-IR camera is not yet installed, an optical camera                    
was available. A co-addition of first 20 R-band images                    
taken at that particular instrument reveals no optical                    
counterpart in the SWIFT/BAT error box down to R = 19.                    
The instrument sensitivity was highly compromised due                    
to the presence of the nearby moon. Additional info on                    
BOOTES-IR can be found at"

This message can be quoted.
Looking for U.S. government information and services? Visit