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X-Ray Emission Line Imaging and Spectroscopy of Tycho's Supernova Remnant
Una Hwang, Eric V. Gotthelf
We present X-ray images of Tycho's supernova remnant in emission line features of Mg, Si, S, Ar, Ca, and Fe, plus the continuum, using data obtained by the imaging spectrometers on…
The Absence of X-ray Flashes from Nearby Galaxies and the Gamma-Ray Burst Distance Scale
T. T. Hamilton, E. V. Gotthelf, D. J. Helfand
If typical gamma-ray bursts (GRBs) have X-ray counterparts similar to those detected by Ginga, then sensitive focusing X-ray telescopes will be able to detect GRBs three orders of…
The EINSTEIN Observatory Detection of Faint X-Ray Flashes
E. V. Gotthelf, T. T. Hamilton, D. J. Helfand
We report on the result of an extensive search for X-ray counterparts to Gamma Ray Bursts (GRB) using data acquired with the Imaging Proportional Counter (IPC) on-board the Einstei…