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Star Clusters in the Galactic Anticenter Stellar Structure: New Radial Velocities & Metallicities
Peter M. Frinchaboy, Ricardo R. Munoz, Steven R. Majewski +3
The Galactic Anticenter Stellar Structure (GASS) has been identified with excess surface densities of field stars in several large area sky surveys, and with an unusual, string-lik…
Cosmological Implications and Physical Properties of an X-Ray Flux-Limited Sample of Galaxy Clusters
Thomas H. Reiprich
The original abstract significantly exceeds the space available here, so here's a brief summary. The abstract is similar to the abstract of astro-ph/0111285 (ApJ, 567, 716) which d…
External Shock Model for the Prompt Phase of Gamma Ray Bursts: Implications for GRB Source Models
Charles D. Dermer, Kurt E. Mitman
An external shock model for the prompt gamma-ray luminous phase of gamma-ray bursts (GRBs) is treated both analytically and numerically. A widely cited derivation claiming that an…
On the Determination of the Mean Cosmic Matter Density and the Amplitude of Density Fluctuations
Thomas H. Reiprich
The cosmological implications from a new estimate of the local X-ray galaxy cluster abundance are summarized. The results are then compared to independent observations. It is sugge…