M87 at metre wavelengths
M87 at metre wavelengths
M87 at metre wavelengths
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Slope of injected<br />
electrons fixed to 0.58<br />
<strong>M87</strong> - Regions<br />
B = 14.3 uG<br />
P = 5.6e-12 dyn/cm^2<br />
t = 4.7Myr<br />
B = 13 uG<br />
P = 4.7e-12 dyn/cm^2<br />
t = 10 Myr<br />
Pressure:<br />
equipartition needs<br />
k>1000, thermal<br />
component?<br />
Equipartition:<br />
• k = 1<br />
• γ min = 100<br />
• D = 20 kpc<br />
B = 12.4 uG<br />
P = 4.2e-12 dyn/cm^2<br />
t = 13.7 Myr<br />
Synchrotron ageing:<br />
B 0.5<br />
t s = 1590<br />
(B 2 + BIC 2 ) [(1 + z) ⌫ b] 0.5<br />
B = 13.7 uG<br />
P = 5.2e-12 dyn/cm^2<br />
t = 10.3 Myr
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