X-Ray Signature of Missing Baryons

Details X-Ray Signature of Missing Baryons X-Ray Signature of Missing Baryons

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.0601d&link_type=abstract

American Astronomical Society, HEAD meeting #11, #6.01; Bulletin of the American Astronomical Society, Vol. 41, p.658

Astronomy and Astrophysics

Astronomy

Scientific paper

I will discuss signatures of the warm-hot intergalactic medium, the repository of the so-called missing baryons of the cosmos, in X-rays and UV absorption. I will summarize the evolution of the WHIM in current hydrodynamic simulations, including the contribution of large-scale outflows to the WHIM temperature and metallicity. I will argue that X-rays likely offer a more promising way to characterize a large fraction of the WHIM in spite of the UV's sensitivity advantages, and discuss prospects for detection with next-generation instruments.

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