[AAVSO-HEN] GRB 070724: Closer association with DSS source

[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:  6661
SUBJECT: GRB 070724: Closer association with DSS source	 
DATE:    07/07/24 19:07:24 GMT
FROM:    Josh Bloom at UC Berkeley  <jbloom at astron.berkeley.edu>

J. S. Bloom and N. R. Butler (UC Berkeley) remark:

"The updated XRT position of GRB 070724 from Page & Ziaeepour (GCN  
#6659), puts the GRB afterglow closer to the proposed low redshift  
host (Bloom GCN #6658) seen in the DSS. We emphasize that the galaxy  
nature of this source has yet to be confirmed; yet, the small offset  
(<~ 2") is reminiscent of the SHB 050709 (Fox et al. Nature, 437,  
845, 2005) and SHB 051221 (Soderberg et al. ApJ, 650, 261, 2006)  
configurations (see Bloom & Prochaska for an early SHB-host offsets  
review; AIP Conf. Proc. 838, 473, 2006)." An updated finder can now  
be found at:

     http://lyra.berkeley.edu/~jbloom/grb070724-update1.png

We thank Massimiliano de Pasquale for helpful conversations about the  
UVOT imaging.

This message could, in principle, be cited.