[AAVSO-HEN] GRB 090201: object inside the enhanced XRT error circle

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
For an archive and more information on circulars visit:
http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3_archive.html

TITLE:   GCN CIRCULAR
NUMBER:  8873
SUBJECT: GRB 090201: object inside the enhanced XRT error circle
DATE:    09/02/02 05:29:17 GMT
FROM:    Paolo D'Avanzo at INAF-OAB  <paolo.davanzo at brera.inaf.it>

P. D'Avanzo, C. C. Thoene, D. Fugazza (INAF-OAB), V. D'Elia, S. 
Piranomonte (INAF-OAR), R. Salvaterra, S. Covino, S. Campana (INAF-OAB), 
G. Chincarini (Univ. Bicocca)  report, on behalf of the MISTICI 
collaboration:

Following the enhanced XRT position (Beardmore et al. GCN 8872) we 
re-analyzed our VLT optical and NIR images of the field of GRB 090201 
(D'Avanzo et al. GCNs 8869, 8871). We find an object at the following 
coordinates (J2000):

R.A. = 06:08:12.48
Dec. = -46:35:24.2

+/- 0.5"

consistent with the enhanced XRT position. Preliminary photometry of 
this object gives R ~ 24.6 and J ~ 21.8. The moderate red color suggests 
that this object likely is the afterglow of
GRB 090201.

Further observations are ongoing.