A dataset provided by the European Space Agency

Proposal ID 030372
Title Counting the Baryons in the Local Universe with XMM-Newton
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0303720301
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DOI https://doi.org/10.5270/esa-rwpkyvt
Principal Investigator, PI Dr Fabrizio Nicastro
Abstract We propose to observe the bright (F(0.5-2 keV) = 1.1 mCrab) and relatively highredshift (z=0.361) blazar 1ES 1028+511 with XMM-Newton for 500 ks, to quadruplethe number of known OVII Warm Hot Intergalactic Medium (WHIM) filaments andreduce threefold the statistical error on Omega_b(WHIM). This long XMM-Newtonobservation will probe a 14.2 times longer path-length than our Mkn 421discovery spectrum ($H_0 = 70 km/s/Mpc), and in a sight line already probed byour pilot Chandra observation. The long pathlength and the large area of theXMM-Newton RGS assures the > 3 sigma detection of 5-6 new OVII WHIM systems downto N_OVII >= 2.2e15 cm-2, in the proposed 500 ks.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-04-13T19:22:18Z/2005-04-27T01:57:36Z
Version 17.56_20190403_1200
Mission Description The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2006-07-01T00:00:00Z
Last Update 2025-01-27
Keywords "redshift z", "ovii whim systems", "pilot chandra", "xmm newton", "n_ovii >=", "XMM-Newton", "bright f0", "local universe", "Mkn 421", "sight line", "statistical error", "XMM", "path length", "reduce threefold", "sigma detection", "2e15 cm"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Fabrizio Nicastro, 2006, 'Counting the Baryons in the Local Universe with XMM-Newton', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-rwpkyvt