337 citations · 652 across the 23 of their papers we have counts for
8 papers · 2 filters
XMM-Newton View of the Multi-Phase Warm Absorber in Seyfert 1 Galaxy NGC985
Yair Krongold, Elena Jimenez-Bailon, Maria Santos-Lleo +6
We present an analysis of an XMM-Newton observation of the Seyfert 1 Galaxy NGC 985. The EPIC spectra present strong residuals to a single power-law model, indicating the presence…
The XMM-Newton survey of the ELAIS-S1 field II: optical identifications and multiwavelength catalogue of X-ray sources
C. Feruglio, F. Fiore, F. La Franca +13
We present optical identifications and a multi-band catalogue of a sample of 478 X-ray sources in the XMM and Chandra surveys of the central 0.6 deg^2 of the ELAIS-S1 field. The op…
Detecting Low-Mass Supermassive Black Holes
Himel Ghosh, Smita Mathur, Fabrizio Fiore +1
We demonstrate the feasibility of uncovering supermassive black holes in late-type, quiescent spiral galaxies by detecting signs of very low-level nuclear activity. We use a combin…
Finding Local Low-mass Supermassive Black Holes
Smita Mathur, Himel Ghosh, Laura Ferrarese +1
The low-mass end of the supermassive black hole mass function is unknown and difficult to determine. Here we discuss our successful program to find active nuclei of late type "norm…
The candidate filament close to the 3C295 galaxy cluster: optical and X-ray spectroscopy
Valerio D'Elia, Fabrizio Fiore, Smita Mathur +1
We present a detailed analysis of the overdensity of X-ray sources colse to the 3C 295 galaxy cluster (z=0.46) to assess whether it is associated with a filament of the large-scale…
Chandra LETGS spectroscopy of the Quasar MR2251-178 and its warm absorber
J. M. Ramírez, S. Komossa, V. Burwitz +1
We present an analysis of our Chandra Low Energy Transmission Grating Spectrometer (LETGS) observation of the quasar MR2251-178. The warm absorber of MR2251-178 is well described b…