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The Discovery of a Very Faint X-ray Transient in the Globular Cluster M15
Craig O. Heinke, Haldan N. Cohn, Phyllis M. Lugger
We have identified an X-ray transient (hereafter M15 X-3) in the globular cluster M15 from an archival Chandra grating observation. M15 X-3 appears at an X-ray luminosity of 6*10^{…
Chandra X-Ray Observatory Observations of the Globular Cluster M71
R. F. Elsner, C. O. Heinke, H. N. Cohn +12
We observed the nearby, low-density globular cluster M71 (NGC 6838) with the Chandra X-ray Observatory to study its faint X-ray populations. Five X-ray sources were found inside th…
Modeling the Galactic CV Distribution for the ChaMPlane Survey
A. B. Rogel, H. N. Cohn, P. M. Lugger
For purposes of designing targeted cataclysmic variable (CV) detection surveys and interpreting results of other projects with many CV detections such as the ChaMPlane Survey, we h…
The Global Kinematics of the Globular Cluster M92
G. A. Drukier, H. N. Cohn, P. M. Lugger +3
We report the determination of high-accuracy radial velocities for 299 members of the globular cluster M92 using the Hydra multi-object spectrograph on the WIYN telescope. We have…
Chandra X-ray Sources in the Collapsed-Core Globular Cluster M30 (NGC 7099)
Phyllis M. Lugger, Haldan N. Cohn, Craig O. Heinke +2
We report the detection of six discrete, low-luminosity (Lx < 10^33 erg/s) X-ray sources, located within 12 arcsec of the center of the collapsed-core globular cluster M30 (NGC 709…
Faint X-ray Sources in the Globular Cluster Terzan 5
C. O. Heinke, R. Wijnands, H. N. Cohn +4
We report our analysis of a Chandra X-ray observation of the rich globular cluster Terzan 5, in which we detect 50 sources to a limiting 1.0-6 keV X-ray luminosity of 3*10^{31} erg…