2017MNRAS.466.4776S


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.25CEST01:08:34

2017MNRAS.466.4776S - Mon. Not. R. Astron. Soc., 466, 4776-4779 (2017/April-3)

A jet-driven dynamo (JEDD) from jet-inflated bubbles in cooling flows.

SOKER N.

Abstract (from CDS):

I suggest that the main process that amplifies magnetic fields in cooling flows in clusters and group of galaxies is a jet-driven dynamo (JEDD). The main processes that are behind the JEDD is the turbulence that is formed by the many vortices formed in the inflation processes of bubbles, and the large scale shear formed by the propagating jet. It is sufficient that a strong turbulence exits in the vicinity of the jets and bubbles, just where the shear is large. The typical amplification time of magnetic fields by the JEDD near the jets and bubbles is approximately hundred million years. The amplification time in the entire cooling flow region is somewhat longer. The vortices that create the turbulence are those that also transfer energy from the jets to the intra-cluster medium, by mixing shocked jet gas with the intra-cluster medium gas, and by exciting sound waves. The JEDD model adds magnetic fields to the cyclical behaviour of energy and mass in the jet-feedback mechanism in cooling flows.

Abstract Copyright: © 2017 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): dynamo - galaxies: clusters: intracluster medium - galaxies: jets - galaxies: jets

Status at CDS:  

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 1930 1
2 ZwCl 0735+7421 ClG 07 41 40.3 +74 14 58     17.70     ~ 214 0
3 NAME Hya A LIN 09 18 05.651 -12 05 43.99   14.38 14.8     ~ 901 1
4 HCG 62 CGG 12 53 05.6 -09 12 21           ~ 290 0
5 NGC 5813 LIN 15 01 11.265 +01 42 07.09 12.00 11.45 10.46 10.06   ~ 576 1
6 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 489 0

    Equat.    Gal    SGal    Ecl

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2020.05.25-01:08:34

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