4 papers
Density Distribution of the Warm Ionized Medium
Alex S. Hill, Ronald J. Reynolds, Robert A. Benjamin +1
Observations of Halpha emission measures and pulsar dispersion measures at high Galactic latitude (|b| > 10 deg) provide information about the density and distribution of the diffu…
The Frequency of Mid-Infrared Excess Sources in Galactic Surveys
B. Uzpen, H. A. Kobulnicky, A. J. Monson +27
We have identified 230 Tycho-2 Spectral Catalog stars that exhibit 8 micron mid-infrared extraphotospheric excesses in the MidCourse Space Experiment (MSX) and Spitzer Space Telesc…
Kinematics of the Ionized Halo of NGC 5775
G. H. Heald, R. J. Rand, R. A. Benjamin +2
Studies of the kinematics of gaseous halos in some spiral galaxies have shown that the rotational velocity of the gas decreases with height above the midplane (z). This vertical ve…
Terminal Velocity Infall in QSO Absorption Line Halos
Robert A. Benjamin
We explore the hypothesis that clouds detected in quasar absorption line systems are falling at a terminal velocity toward the center of high redshift gaseous galactic halos. Since…