Table 1: Parameters and plasma $\beta $ for various astrophysical objects.
Type of medium Density Mag. field Temp Plasma $\beta $
Unit cm-3   K  
Gas in supercusters of gal. 10-6 0.5 $\mu$G 107 0.14
Gas in clusters of gal. 10-4 1 $\mu$G 107 3.5
Gas in galactic halos 10-3 4 $\mu$G 106 0.22
Spiral arm interstellar gas. 0.5 4 $\mu$G 104 1.09
Large interstellar shells-initial 0.8 4 $\mu$G 103 0.3
HI gas in diffuse clouds 3 5 $\mu$G 100 0.04
HII regions 5 10 $\mu$G 104 1.74
HI gas in interclumps 90 15 $\mu$G 100 0.14
HI gas in abs. initial 100 15 $\mu$G 10 0.02
Solar photosphere (spots) 1017 2 $\times$ 103 G 104 0.8
Solar corona 108 10 G 106 $3.5\times10^{-3}$
Magnetic stars 1010 103-104 G 106 $3\times10^{-5}$
Bipolar flows 103 10-4 G 10 $3\times10^{-3}$
AGN nuclei 1010 10-3-10-1 G 106-108 0.3
AGN jets 10-4 10-5-10-3 G 106-107 10-2
Neutron star surface 1012 1012 G $2\times10^{6}$ 10-20
Magnetized white dwarfs 1012 106 G 106 10-8


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