Ju. Fynbo et al., Hubble Space Telescope Space Telescope Imaging Spectrograph imaging of thehost galaxy of GRB 980425/SN 1998bw, ASTROPHYS J, 542(2), 2000, pp. L89-L93
We present Hubble Space Telescope Space Telescope Imaging Spectrograph obse
rvations of ESO 184-G82, the host galaxy of the gamma-ray burst GRB 980425
associated with the peculiar Type Ic supernova SN 1998bw. ESO 184-G82 is fo
und to be an actively star-forming SBc subluminous galaxy. We detect an obj
ect consistent with being a point source within the astrometric uncertainty
of 0."018 of the position of the supernova. The object is located inside a
star-forming region. The object is greater than or equal to1 mag brighter
than expected for the supernova based on a simple radioactive decay model.
This implies either a significant flattening of the light curve or a contri
bution from an underlying star cluster.