Limits on radioactive powered emission associated with a short-hard GRB 070724A in a star-forming galaxy: Short-hard GRB 070724A

We present results of an extensive observing campaign of the short-duration, hard spectrum gamma-ray burst (GRB) 070724A, aimed at detecting the radioactively powered emission that might follow from a binary merger or collapse involving compact objects. Our multiband observations span the range in time over which this so-called Li–Paczyński mini-supernova (mini-SN) could be active, beginning withi...