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arXiv:0711.4888 (astro-ph)
[Submitted on 30 Nov 2007]

Title:Searching for the Missing Baryons in the Warm-Hot Intergalactic Medium

Authors:X. Barcons (IFCA, Csic-Uc)
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Abstract: At low redshift (z<2), almost half of the baryons in the Universe are not found in bound structures like galaxies and clusters and therefore most likely reside in a Warm-Hot Intergalactic Medium (WHIM), as predicted by simulations. Attempts to detect WHIM filaments at cosmological distances in absorption towards bright background sources have yielded controversial results that I review here. I argue that a secure detection of absorption features by the WHIM is at the limit of the XMM-Newton capabilities, but feasible. A proper characterisation of the whole WHIM belongs to the realm of future X-ray missions.
Comments: Proceedings of the "XMM-Newton: the next decade", to appear in Astronomische Nachrichten
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0711.4888 [astro-ph]
  (or arXiv:0711.4888v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0711.4888
Related DOI: https://doi.org/10.1002/asna.200710893

Submission history

From: Xavier Barcons [view email]
[v1] Fri, 30 Nov 2007 09:25:19 UTC (64 KB)
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