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A. S. Fruchter

Researcher at Space Telescope Science Institute

Publications -  163
Citations -  26343

A. S. Fruchter is an academic researcher from Space Telescope Science Institute. The author has contributed to research in topics: Gamma-ray burst & Redshift. The author has an hindex of 48, co-authored 156 publications receiving 24513 citations.

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The properties of GRB 120923A at a spectroscopic redshift of z ≈ 7.8

Nial R. Tanvir, +46 more
TL;DR: In this article, the optical drop-out afterglow of Swift GRB 120923A in near-infrared Gemini-North imaging was identified, and a redshift of $z={784}_{-012}^{+006}$ from Very Large Telescope/X-shooter spectroscopy was derived, and the peak 15-150 keV luminosity of the burst was 32 × 1052 erg s−1.
Journal ArticleDOI

The Relative Rate of LGRB Formation as a Function of Metallicity

TL;DR: In this paper, the relative rate of LGRB formation as a function of metallicity in the low-redshift universe was investigated and it was shown that LGRBs are preferentially formed in low-metallicity environments.