2 papers
astro-ph2005
Optical studies of ultra-luminous X-ray sources in nearby galaxies
Ji-Feng Liu, Joel N. Bregman, Patrick Seitzer +1
Optical studies of ultra-luminous X-ray sources is an essential step in understanding the nature of these enigmatic sources, and in this paper we report our studies of five ULXs in…
astro-ph2004
High-Velocity Clouds in M 83 and M 51
Eric D. Miller, Joel N. Bregman
Various scenarios have been proposed to explain the origin of the Galactic high-velocity clouds, predicting different distances and implying widely varying properties for the Galax…