An HST Study of the Supernovae Accompanying GRB 040924 and GRB 041006
Soderberg, A M; Kulkarni, Shrinivas R; Price, Paul Antony; Berger, Edo; Moon, D-S; Gal-Yam, Avishay; Frail, Dale A; Chevalier, Roger A; Da Costa, Gary; Noel, N; Park, H-S; Peterson, Bruce; Rest, Armin; Rich, Joshua; Roth, K C; Schmidt, Brian; Wood, Peter R
We present the results from a Hubble Space Telescope ACS study of the supernovae (SNe) associated with gamma-ray bursts (GRBs) 040924 (z = 0.86) and 041006 (z = 0.71). We find evidence that both GRBs were associated with an SN 1998bw-like supernova dimmed by ∼ 1.5 and ∼0.3 mag, respectively, making GRB 040924 the faintest GRB-associated SN ever detected. We study the luminosity dispersion in GRB/XRF-associated SNe and compare to local Type Ibc SNe from the literature. We find significant...[Show more]
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