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Submitted to The Astrophysical Journal (Letters) The Host Galaxy of the Gamma–Ray Burst 971214 1

By S. C. Odewahn, S. G. Djorgovski, S. R. Kulkarni, M. Dickinson, D. A. Frail, A. N. Ramaprakash, J. S. Bloom, K. L. Adelberger, J. Halpern, D. J. Helf, J. Bahcall, R. Goodrich, F. Frontera, M. Feroci, L. Piro and E. Costa

Abstract

We report on Hubble Space Telescope (HST) observations of the host galaxy of GRB 971214, about four months after the burst. The redshift of the proposed host galaxy at z = 3.418, combined with optical and radio observations of the burst afterglow, implies the extremely large isotropic energy release from the burst in γ-rays of Eγ ≈ 3 × 10 53 erg, some two orders of magnitude higher than the previously commonly assumed numbers. The positional offset between the optical transient observed at the Keck telescope and the centroid of the proposed host galaxy in the HST image is 0.14 ± 0.07 arcsec. We find no evidence in our deep HST image for a chance foreground galaxy superposed along the line of sight to the proposed host at

Year: 1998
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