445 citations · 1.5k across the 10 of their papers we have counts for
4 papers · 1 filter
Time lags in Narrow-line Seyfert 1 galaxies and the origin of their soft excess emission
G. C. Dewangan, R. E. Griffiths, A. R. Rao +1
The origin of soft X-ray excess emission from type 1 active galactic nuclei has remained a major problem for the last two decades. It has not been possible to distinguish alternati…
An investigation of the origin of soft X-ray excess emission from Narrow-line Seyfert 1 galaxies Akn564 and Mrk1044
G. C. Dewangan, R. E. Griffiths, Surajit Dasgupta +1
We investigate the origin of the soft X-ray excess emission from narrow-line Seyfert 1 galaxies Akn564 and Mrk1044 using XMM-Newton observations. We find clear evidence for time de…
X-ray source counts in the COSMOS field
N. Cappelluti, G. Hasinger, M. Brusa +13
We present the analysis of the source counts in the XMM-COSMOS survey using data of the first year of XMM-Newton observations. The survey covers ~2 deg^2 within the region of sky b…
The XMM-Newton wide-field survey in the COSMOS field II: X-ray data and the logN-logS
N. Cappelluti, G. Hasinger, M. Brusa +13
We present the data analysis and the X-ray source counts for the first season of XMM-Newton observations in the COSMOS field. The survey covers ~2 deg^2 within the region of sky bo…