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Unveiling the nature of Ultraluminous Infrared Galaxies with 3-4 micron spectroscopy
G. Risaliti, R. Maiolino, A. Marconi +6
We present the results of L-band spectroscopical observations of local bright ULIRGs, performed with ISAAC at the VLT. We discuss the L-band spectral features of seven single sourc…
Highly ionized iron absorption lines from outflowing gas in the X-ray spectrum of NGC 1365
G. Risaliti, S. Bianchi, G. Matt +4
We present the discovery of four absorption lines in the X-ray spectrum of the Seyfert Galaxy NGC 1365, at energies between 6.7 and 8.3 keV. The lines are detected with high statis…
The SDSS-XMM Quasar Sample: First Results
G. Risaliti, M. Elvis, ;
We have searched in the XMM-Newton public archive for quasars in the Sloan Digital Sky Survey (SDSS) First Data Release (DR1), and found 55 lying in the field of a XMM-Newton obser…
Extreme X-ray spectral variability in the Seyfert 2 Galaxy NGC 1365
G. Risaliti, M. Elvis, G. Fabbiano +2
We present multiple Chandra and XMM-Newton observations of the type 1.8 Seyfert Galaxy NGC 1365, which shows the most dramatic X-ray spectral changes observed so far in an AGN: the…