Expected X-ray Emission from the Warm-Hot Intergalactic Medium (WHIM)

Details Expected X-ray Emission from the Warm-Hot Intergalactic Medium (WHIM) Expected X-ray Emission from the Warm-Hot Intergalactic Medium (WHIM)

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.4103g&link_type=abstract

American Astronomical Society Meeting 203, #41.03; Bulletin of the American Astronomical Society, Vol. 35, p.1270

Astronomy and Astrophysics

Astronomy

Scientific paper

The number of detected baryons in the Universe at z<0.5 is much smaller than predicted by standard big bang nucleosynthesis and by the detailed observation of the Lyman alpha forest at red-shift z=2. Hydrodynamical simulations indicate that a large fraction of the baryons today is expected to be in a ''warm-hot'' (105-107 K) filamentary gas, distributed in the intergalactic medium (WHIM). It is currently believed that a significant fraction (\ 10%) of the diffuse x-ray background in the energy band 0.5-1 keV is due to thermal emission from this intergalactic medium. The signature of the WHIM can be observed in red-shifted (z<1) strong soft x-ray and UV emission lines from highly ionized elements.
Using the prediction of the hydrodynamic models we simulated the expected x-ray emission due to the WHIM and compared it with local and high red-shift components. We then investigated the ability of future missions (Astro-E2, Constellation-X and MBE - a proposed dedicated SMEX mission) to detect the X-ray emission due to the WHIM, and we quantified the effect of the WHIM x-ray emission on current and past experiments.

Affiliated with

Also associated with

No associations

Rating

Expected X-ray Emission from the Warm-Hot Intergalactic Medium (WHIM) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Expected X-ray Emission from the Warm-Hot Intergalactic Medium (WHIM), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expected X-ray Emission from the Warm-Hot Intergalactic Medium (WHIM) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1419353