3 papers
astro-ph2002
Improving X-Ray Resolution with XOSS
Craig J. Copi, Glenn D. Starkman
Improving angular resolution is one of X-ray astronomy's big challenges. While X-ray interferometry should eventually vastly improve broad-band angular resolution, in the near-term…
astro-ph2000
Improving the Resolution of X-Ray Telescopes with Occulting Satellites
Craig J. Copi, Glenn D. Starkman
One of the challenges of X-ray astronomy is how to both collect large numbers of photons yet attain high angular resolution. Because X-ray telescopes utilize grazing optics, to col…
astro-ph1996
Implications of a Primordial Origin for the Dispersion in D/H in Quasar Absorption Systems
Craig J Copi, Keith A. Olive, David N. Schramm
We consider possible implications if the recent and disconcordant measurements of D/H in quasar absorption systems are real and indicate a dispersion in D/H in these primitive syst…