Mathematics – Logic
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...413..477f&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 413, no. 2, p. 477-485.
Mathematics
Logic
26
Baryons, Cosmology, Dark Matter, Intergalactic Media, Mass Distribution, Astronomical Models, Galactic Clusters, Galactic Evolution
Scientific paper
The evolution of a diffuse baryonic medium in a flat Friedmann universe containing cold or hybrid (cold plus hot) dark matters has been studied in the linear regime. Numerical and analytical calculations showed that for all models considered, the spectrum of density fluctuations of the IGM can be expressed on average as a proportion of those of dark matters by a factor less than one, in which the only parameter is the Jeans length of the medium. This solution can provide a coherent explanation of cosmological properties of the IGM, including the cosmic Mach number of IGM, Comptonization parameter, and soft X-ray emission of the IGM. This model showed that the IGM temperature underwent an increase with cosmic time. It implies that (1) clusters may have a halo consisting of hot and thin diffuse baryonic medium, and (2) the temperature of the X-ray gas of clusters increases with the distance from the center of the cluster.
Bi Hongguang
Boerner Gerhard
Fang Li-zhi
Xiang Shouping
No associations
LandOfFree
Linear evolution of cosmic baryonic medium on large scales 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 Linear evolution of cosmic baryonic medium on large scales, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear evolution of cosmic baryonic medium on large scales will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1491197