The spectral and temporal properties of an Ultra-Luminous X-ray source in NGC 6946 (2008)
Devi, A. Senorita, Misra, R., Shanthi, K., Singh, K. Y.
We report variability of the X-ray source, X-7, in NGC 6946, during a 60 ksec Chandra observation when the count rate decreased by a factor of ~1.5 in ~5000 secs. Spectral fitting of the high and low...
The dependence of the estimated luminosities of ULX on spectral models (2007)
Devi, A. Senorita, Misra, R., Agrawal, V. K., Singh, K. Y.
Data from {\it Chandra} observations of thirty nearby galaxies were analyzed and 365 X-ray point sources were chosen whose spectra were not contaminated by excessive diffuse emission and not affected...