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Título

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

AutorBarcons, Xavier
Palabras claveGalaxies: intergalactic medium
Quasars: absorption lines
Astrophysics
Fecha de publicación30-nov-2007
CitaciónarXiv:0711.4888v1 [astro-ph]
Astron. Nachr. / AN 999, No. 88, 789 – 792 (2006)
http://dx.doi.org/10.1002/asna.200710893
ResumenAt 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.
DescripciónProceedings of the "XMM-Newton: the next decade", to appear in Astronomische Nachrichten.
URIhttp://hdl.handle.net/10261/3714
DOI10.1002/asna.200710893
ISSN0004-6337
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