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Afterglows, Redshifts, and Properties of Swift Gamma-Ray Bursts

Berger, Edo; Kulkarni, Shrinivas R; Fox, Derek B; Soderberg, A M; Harrison, F A; Nakar, Ehud; Kelson, Daniel D; Gladders, M D; Mulchaey, J S; Oemler, A; Dressler, Alan; Centini, Marco; Price, Paul Antony; Schmidt, Brian; Frail, Dale A; Morrell, N; Gonzalez, S; Krzeminski, W; Sari, R; Gal-Yam, Avishay; Moon, D-S; Penprase, B E; Jayawardhana, R; Scholz, A; Rich, Joshua; Peterson, Bruce; Anderson, Gemma; McNaught, Rob; Minezaki, Takeo; Yoshii, Yuzuru; Cowie, L L; Pimbblet, Kevin


We present optical, near-IR, and radio follow-up of 16 Swift bursts, including our discovery of nine afterglows and a redshift determination for three. These observations, supplemented by data from the literature, provide an afterglow recovery rate of 52% in the optical/near-IR, much higher than in previous missions (BeppoSAX, HETE-2, INTEGRAL, and IPN). The optical/near-IR afterglows of Swift events are on average 1.8 mag fainter at t = 12 hr than those of previous missions. The X-ray...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1086/491667
Access Rights: Open Access


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