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GCN Circular 11232

Subject

GRB 100906A: UKIRT zYJHK Observation

Date

2010-09-06T15:27:40Z (15 years ago)

From

Myungshin Im at Seoul Nat U <mim@astro.snu.ac.kr>

Myungshin Im, Changsu Choi, Hyunsung Jun, Eugene Kang (CEOU/Seoul
  National University), Y. Urata (NCU), P. Choi (Pomona College),
  T. Sakamoto (NASA/GSFC), and N. Gehrels (NASA/GSFC) on behalf
  of a larger collaboration

    Using UKIRT, we obtained multiple sets of zYJHK images of GRB 100906A
  (Markwardt et al. GCN 11227Loading...
 
 ) with a series of  z, Y, J, H, and K filters
  using UKIRT. The observation started at Sept. 06, 14:23 UT or roughly 34
  minutes after the BAT alert.
   We clearly identify an uncatalogued source in images in all the filters.
   The preliminary magnitude of the afterglow is J= 14.93 +- 0.02 and
  K=13.54 +- 0.02 (Vega), calibrated against 2MASS stars in the vicinity.