[vsnet-grb-info 3291] GRB 060512: Detection of NIR afterglow

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5126
SUBJECT: GRB 060512: Detection of NIR afterglow
DATE:    06/05/13 07:50:38 GMT
FROM:    Don Lamb at U.Chicago  <lamb at oddjob.uchicago.edu>

GRB 060512: Detection of NIR afterglow

F. Hearty (Colorado), D. Q. Lamb (Chicago), R. McMillan (APO), J.
Bally (Colorado), G. Wolf-Chase (Chicago), H.-W. Chen (Chicago), 
D. G. York (Chicago), M. Bayliss (Chicago), B. Ketzeback (APO), 
J. Barentine (APO), and J. Dembicky (APO) report:


We have observed the afterglow (Cummings et al, GCN 5117; Mundell and
Steele, GCN 5118; Malesani et al., GCN 5122; Cenko, GCN 5125) of GRB
060512, a  bright burst localized by Swift BAT (Cummings et al., GCNs
5117, 5124), beginning at about 5:36 UT on 13 May 2006 (about 6.4 hours
after the burst) under partly cloudy conditions, using NIC-FPS on the
ARC 3.5-meter telescope at Apache Point Observatory.  The observation
consisted of a series of 15 20-second exposures in Ks.  From them, we
have constructed a stacked image of the GRB field, corresponding to a
5-minute exposure.

We measure a magnitude for the afterglow of Ks = 17.7 +/-0.2.  Further 
observations are underway.

NIC-FPS is currently in its commissioning phase.