Gordon P. Garmire

TL;DR: The first detection of X-ray emission associated with the Gum Nebula is reported in this article, which is consistent with a supernova remnant in the shell stage of evolution, which was the product of an energetic supernova explosion which occurred about 2 x 10 exp 6 yr ago.

TL;DR: In this paper, the results of soft X-ray observations of SN 1987A over the energy band 0.65-2.0 keV are reported and the upper limits on the soft x-ray flux are inconsistent with an extrapolation of the spectrum measured by the Ginga Satellite to the energy bands and require a turnover in the Xray spectrum between 2 and 4 keV.

TL;DR: In this article, Chandra observations of seven high-ionization broad absorption line (HiBAL) quasars selected from the Large Bright Quasar Survey (LBQS) were combined to detect intrinsically X-ray weak AGNs.

TL;DR: In this article, Chandra observations of a high-redshift galaxy cluster discovered in the Red-Sequence Cluster Survey (RCS): RCS 043938-2904.7.

TL;DR: The Chandra X-ray Observatory is providing remarkable new views of massive star-forming regions, revealing all stages in the life cycle of high-mass stars and their effects on their surroundings as discussed by the authors.