Physics
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..135n&link_type=abstract
XMM-Newton Proposal ID #03037201
Physics
Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, 1Es 1028+511, Xmm-Newton Proposal 03037201
Scientific paper
We propose to observe the bright (F(0.5-2 keV) = 1.1 mCrab) and relatively high redshift (z=0.361) blazar 1ES 1028+511 with XMM-Newton for 500 ks, to quadruple the number of known OVII Warm Hot Intergalactic Medium (WHIM) filaments and reduce threefold the statistical error on Omega_b(WHIM). This long XMM-Newton observation will probe a 14.2 times longer path-length than our Mkn 421 discovery spectrum (H_0 = 70 km/s/Mpc), and in a sight line already probed by our pilot Chandra observation. The long pathlength and the large area of the XMM-Newton RGS assures the > 3 sigma detection of 5-6 new OVII WHIM systems down to N_OVII >= 2.2e15 cm-2, in the proposed 500 ks.
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