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XMM-Newton RGS and Chandra LETGS observations of the WHIM in 1ES 1028+511
K. C. Steenbrugge, F. Nicastro, M. Elvis
We report preliminary results on the detection of the Warm-Hot Intergalactic Medium (WHIM) along the line of sight toward the blazar 1ES 1028+511 (z = 0.361). 1ES 1028+511 was obse…
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…
X-ray Cluster Associated with the z=1.063 CSS Quasar 3C 186: The Jet is NOT Frustrated
Aneta Siemiginowska, C. C. Cheung, Stephanie LaMassa +6
We report the Chandra discovery of an X-ray cluster at redshift z = 1.063 associated with the Compact Steep Spectrum radio loud quasar 3C 186 (Q0740+380). Diffuse X-ray emission is…
Probing the Local Group Medium Toward Mkn 421 with Chandra and FUSE
Rik J. Williams, Smita Mathur, Fabrizio Nicastro +7
We report the detection of highly-ionized gas at z~0 seen in resonant UV and X-ray absorption lines toward the z=0.03 blazar Mkn 421. A total of 13 X-ray and 3 UV lines were measur…
Chandra Detection of the First X-ray Forest along the Line of Sight To Mkn 421
Fabrizio Nicastro, Smita Mathur, Martin Elvis +7
We present the first >=3.5 sigma (conservative) or >=5.8 sigma (sum of lines significance) detection of two Warm-Hot Intergalactic Medium (WHIM) filaments at z>0, which we find alo…