GRB 000301C (2.2x2.2 arcmin)
|GCN Circular #604: GRB 000301C, Optical Observation|
J. P. Halpern & J. Kemp (Columbia U.) report on behalf of the MDM Observatory GRB follow-up team: "We reobserved GRB 000301C in the R band on March 9.52 UT using the MDM 1.3m telescope, measuring R = 22.28 +/- 0.09 referenced to the comparison stars of Garnavich et al. (GCN #573). Seeing was 1."4. If we restrict our attention to those GCN reported magnitudes that have error bars less than or equal to 0.1 mag, then the light curve is reasonably well described by a power-law decay of alpha = -0.90 +/- 0.04 until 4 days after the burst, followed by a power-law decay of alpha = -1.93 +/- 0.12. An updated decay curve and a new CCD image are posted at http://www.astro.bio2.edu/grb/000301Ca This message may be cited."
|The following figure will be updated whenever more recent measurements become available. Click here to receive the latest postscript version.|
|Columbia University Astronomy and Astrophysics, and MDM Observatory|