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On the nature of the ultraluminous X-ray transient in Cen~A (NGC 5128)
Kajal K. Ghosh, Mark H. Finger, Douglas A. Swartz +2
We combine 9 ROSAT, 9 Chandra, and 2 XMM-Newton observations of the Cen~A galaxy to obtain the X-ray light curve of 1RXH J132519.8-430312 (=CXOU J132519.9430317) spanning 1990 t…
The Herbig Ae star HD 163296 in X-rays
Douglas A. Swartz, Jeremy J. Drake, Ronald F. Elsner +5
Chandra X-ray imaging spectroscopy of the nearby Herbig Ae star HD 163296 at 100 AU angular resolution is reported. A point-like, soft (kT~0.5 keV), emission-line source is detecte…
A Multi-wavelength Study of the X-ray Sources in NGC 5018
Kajal K. Ghosh, Douglas A. Swartz, Allyn F. Tennant +2
The E3 giant elliptical galaxy NGC5018 was observed with the Chandra X-ray Observatory on 14 April 2001. Results of analysis of these X-ray data as well as of complementary optical…