30 citations · 53 across the 3 of their papers we have counts for
3 papers
Monitoring the Very-Long-Term Variability of X-ray Sources in the Giant Elliptical Galaxy M87
D. L. Foster, P. A. Charles, D. A. Swartz +2
We report on our search for very-long-term variability (weeks to years) in X-ray binaries (XRBs) in the giant elliptical galaxy M87. We have used archival Chandra imaging observati…
DEM L241, a Supernova Remnant containing a High-Mass X-ray Binary
F. D. Seward, P. A. Charles, D. L. Foster +5
A Chandra observation of the Large Magellanic Cloud supernova remnant DEM L241 reveals an interior unresolved source which is probably an accretion-powered binary. The optical coun…
Interpretation of the 115 Day Periodic Modulation in the X-ray Flux of NGC 5408 X-1
Deatrick Foster, Phil Charles, Kelly Holley-Bockelmann
We comment on the recent observation of a 115-day modulation in the X-ray flux of the ultraluminous X-ray source (ULX) NGC 5408 X-1, and in particular, the interpretation of this m…