Astronomy and Astrophysics – Astronomy
Scientific paper
May 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.296..579z&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 296, Issue 3, pp. 579-584.
Astronomy and Astrophysics
Astronomy
4
Mhd, Galaxies: Clusters: General, Galaxies: Cooling Flows, Intergalactic Medium, Galaxies: Magnetic Fields
Scientific paper
We study the dynamics of magnetic flux loops embedded in an intracluster medium. In order to perform the calculations semi-analytically we make several simplifying assumptions, which include a treatment of only the two ends of the magnetic flux loops, assuming a simple relation between the density and the magnetic field and neglecting heat conduction. Our results indicate that the existence of a large number of magnetic flux loops can naturally lead to a multiphase intracluster medium. A multiphase intracluster medium is inferred from observations of the mass deposition rate in many cooling-flow clusters. The loops will be observed as `filaments' having different density and temperature from their surroundings, namely X-ray filaments. X-ray filaments have been discovered in a few cases, although their discovery is controversial. Our model predicts that many such X-ray filaments will be discovered with future high-spatial-resolution X-ray telescopes, such as AXAF.
Regev Oded
Soker Noam
Zoabi Essam
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