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4 papers · 2 filters
GRB 130606A as a Probe of the Intergalactic Medium and the Interstellar Medium in a Star-forming Galaxy in the First Gyr After the Big Bang
Ryan Chornock, Edo Berger, Derek B. Fox +5
We present high signal-to-noise ratio Gemini and MMT spectroscopy of the optical afterglow of the gamma-ray burst (GRB) 130606A at redshift z=5.913, discovered by Swift. This is th…
Stacked reverberation lags at high redshift
S. Fine, T. Shanks, P. Green +9
Over the past 20years reverberation mapping has proved one of the most successful techniques for studying the local (<1pc) environment of super-massive black holes that drive activ…
PS1-12sk is a Peculiar Supernova From a He-rich Progenitor System in a Brightest Cluster Galaxy Environment
N. E. Sanders, A. M. Soderberg, R. J. Foley +29
We report on our discovery and observations of the Pan-STARRS1 supernova (SN) PS1-12sk, a transient with properties that indicate atypical star formation in its host galaxy cluster…
The host-galaxy response to the afterglow of GRB 100901A
Olga E. Hartoog, Klaas Wiersema, Paul M. Vreeswijk +16
For Gamma-Ray Burst 100901A, we have obtained Gemini-North and Very Large Telescope optical afterglow spectra at four epochs: one hour, one day, three days and one week after the b…