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GCN Circular 6279

Subject

GRB 070412: IAC80 optical afterglow candidate

Date

2007-04-12T04:58:25Z (18 years ago)

From

Martin Jelinek at Inst.Astrophys.Andalucia,Granada <mates@iaa.es>

M. Jelinek (IAA-CSIC, Granada). J. A. Caballero (MPIA
Heidelberg), A. de la Nuez (IAC La Laguna) and A. J.
Castro-Tirado (IAA-CSIC), on behalf of larger colaboration.

report:

"We have observed the field of GRB070412 (Romano et al. GCNC
6273) with the IAC80 telescope at Observatorio del Teide in I
filter, starting at 03:02 UT, i.e. 1.6 h after the trigger. 

Inspection of a 30 minute combined image shows a faint
(4-sigma) source at 

	12:06:10.416,+40:08:24.12 +-0.5" (J2000)
	
with the I-band brightness 21.5+-0.5. The object is not
consistent with the candidate of Malesani et al. (GCN 6276Not found
 
 
).
The identification map is at

	http://www.iaa.es/~mates/grb070412id.jpg.

Further observations are needed to confirm the transient
nature of this object.