GCN Circular 2434
Subject
SN 2003jd (SN/GRB?) - possible association with GRB 030929
Date
2003-10-29T21:05:27Z (21 years ago)
From
Avishay Gal-Yam at Tel Aviv U, Israel <avishay@wise1.tau.ac.il>
E. O. Ofek, D. Poznanski, A. Gal-Yam and Y. Lipkin
(Wise observatory, TAU) report:
We searched the list of IPN error-boxes derived for GRBs detected
between September 15 and October 28 2003,
for a spatial coincidence with SN 2003jd (Burket, Swift and Li, 2003; IAUC
8232), which is spectroscopically similar to SNe 1998bw and 2003dh,
associated with GRBs 980425 and 030329, respectively
(Filippenko, Foley, and Swift 2003, IAUC 8234;
Matheson et al. 2003, IAUC 8234, GCN 2431).
We find that the position of SN 2003jd falls within the 3-sigma preliminary
error annulus of the short/hard GRB 030929 (Hurley et al. 2003; GCN 2409)
detected by Konus-Wind and INTEGRAL (SPI-ACS).
Since the total area of IPN 3-sigma error-boxes and annuli derived
between Sep. 15 and Oct. 28 2003 covers 5.6% of the entire sky,
and the reported error annulus is preliminary, this coincidence
may well be by mere chance. We also note that GRB 030929 is a
short, hard burst, while previous events associated with SN 1998bw-like SNe Ic
were of the long, soft variety. Additionally, if SN 2003jd is associated
with GRB 030929, the SN rise time (~30 days) is somewhat longer
than observed in previous cases (e.g., ~17 days, for SN 1998bw).
Further inspection of the relevant IPN data may shed more light on
this possible association.