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GRB 010921: Strong Limits on an Underlying Supernova from the Hubble Space Telescope

Price, P. A. and Kulkarni, S. R. and Schmidt, B. P. and Galama, T. J. and Bloom, J. S. and Berger, E. and Frail, D. A. and Djorgovski, S. G. and Fox, D. W. and Henden, A. A. and Klose, S. and Harrison, F. A. and Reichart, D. E. and Sari, R. and Yost, S. A. and Axelrod, T. S. and McCarthy, P. and Holtzman, J. and Halpern, J. P. and Kimble, R. A. and Wheeler, J. C. and Chevalier, R. A. and Hurley, K. and Ricker, G. R. and Costa, E. and Frontera, F. and Piro, L. (2003) GRB 010921: Strong Limits on an Underlying Supernova from the Hubble Space Telescope. Astrophysical Journal, 584 (2). pp. 931-936. ISSN 0004-637X. doi:10.1086/345734.

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GRB 010921 was the first HETE-2 gamma-ray burst (GRB) to be localized via its afterglow emission. The low redshift of the host galaxy, z = 0.451, prompted us to undertake intensive multicolor observations with the Hubble Space Telescope with the goal of searching for an underlying supernova (SN) component. We do not detect any coincident SN to a limit 1.33 mag fainter than SN 1998bw at 99.7% confidence, making this one of the most sensitive searches for an underlying SN. Analysis of the afterglow data allows us to infer that the GRB was situated behind a net extinction (Milky Way and the host galaxy) of A_V ~ 1.8 mag in the observer frame. Thus, had it not been for such heavy extinction, our data would have allowed us to probe for an underlying SN with brightness approaching those of more typical Type Ib/c SNe.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Kulkarni, S. R.0000-0001-5390-8563
Schmidt, B. P.0000-0001-6589-1287
Bloom, J. S.0000-0002-7777-216X
Berger, E.0000-0002-9392-9681
Djorgovski, S. G.0000-0002-0603-3087
Fox, D. W.0000-0002-3714-672X
Harrison, F. A.0000-0003-2992-8024
Reichart, D. E.0000-0002-5060-3673
Sari, R.0000-0002-1084-3656
Alternate Title:GRB 010921: Strong Limits on an Underlying Supernova from HST
Additional Information:© 2003 The American Astronomical Society. Received 2002 July 9; accepted 2002 October 23. We thank Pete Challis for helpful discussions about WFPC2 reduction and Megan Novicki and John Tonry for an advance copy of their N(N-1)/2 subtraction paper. S. R. K. and S. G. D. thank NSF for supporting our ground-based GRB observing program. B. P. S. and P. A. P. thank the ARC for supporting Australian GRB research. Support for proposal HST-GO-08867.01-A was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. K. H. is grateful for support under grant HST-GO-09180.07-A.
Funding AgencyGrant Number
Australian Research CouncilUNSPECIFIED
NASANAS 5-26555
Subject Keywords:gamma rays: bursts
Issue or Number:2
Record Number:CaltechAUTHORS:20190918-104431296
Persistent URL:
Official Citation:P. A. Price et al 2003 ApJ 584 931
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98719
Deposited By: Tony Diaz
Deposited On:18 Sep 2019 18:00
Last Modified:16 Nov 2021 17:41

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