[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-grb-info 1170] GRB 030528: Infrared Observations and the Proposed IR Counterpart



TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2275
SUBJECT: GRB 030528: Infrared Observations and the Proposed IR Counterpart
DATE:    03/06/06 23:49:59 GMT
FROM:    George Djorgovski at Caltech/Palomar  <george@astro.caltech.edu>

GRB 030528: Infrared Observations and the Proposed IR Counterpart

M. Bogosavljevic, A. Mahabal, and S. G. Djorgovski (Caltech),
report on behalf of the Caltech-NRAO-CARA GRB collaboration:

On June 3, 2003, 08:30 UT we observed the field of the tentative
near-IR afterglow of GRB 030528 (Greiner et al, GCN 2271), using
the WIRC camera at the Palomar 200-inch Hale telescope.  A total
of 30 min on-source exposure was obtained in the Ks band. The
average seeing was ~1.0". 

The proposed afterglow of GRB 030528, Chandra source #1 
(CXOU J170400.3-223710, Butler et al., GCN 2269) is not detected
down to our 3-sigma detection limit of Ks~19.5, indicating a
continued fading (see Greiner et al, GCN 2271), and strengthening
its interpretation as the afterglow of GRB 030528.

Our 8x8 arcmin FOV also covers Chandra sources #4, #9, #10, all
of which are within the SXC revised error region.  All three are
detected.  IR images and magnitude estimates will be placed at:

http://www.astro.caltech.edu/~milan/GRB030528/

The field also includes Chandra sources #3, #5, #8, #14, #15 and
#17, from the additional list outside the SXC error region
(Butler et al., GCN 2269 and ref. therein).

This message can be cited.


Return to Home Page

Return to the Powerful Daisaku

vsnet-adm@kusastro.kyoto-u.ac.jp

Powered by ooruri technology