ARC 3.5m Observations of GRB 981220

Figure 1: The 4 x 4 arcmin field surrounding RXTE ASM / IPN error region (GCN #160). This image is a combination of all R-band observations on December 23.2 UT with the APO 3.5m telescope by Al Diercks and Eric Deutsch. North is up, East is left.

There are a few objects which may be new as compared with a finding chart made from the Digitized Sky Survey II but they are all near the plate limit and may well be due to color and random fluctuations. The source labeled with "1" in Figure 1 above seemed to be most notably absent on the DSS II frame and was scrutinzed with extra care, but proves not to vary in follow on observations.


Eric Deutsch: deutsch@astro.washington.edu
Back to My Home Page
Back to UW Astronomy Home Page