Re:First Detection of the 21cm Cosmic Dawn Signal
by JumpCrisscross on Wednesday March 14, 2018 @05:34PM
(#16588501)
> the galactic synchrotron
"The plane of the Milky Way is dominated by diffuse radio emission with a brightness temperature of thousands of Kelvin at low radio frequencies (Zheng et al. 2016). This emission originates from relativistic electrons interacting with the Galactic magnetic field."
Re:First Detection of the 21cm Cosmic Dawn Signal
by Sniffnoy on Wednesday March 14, 2018 @07:42PM
(#16589382)
Question: Why the galactic synchrotron and not, say, the solar synchrotron? I'm assuming the latter exists but is negligible for some reason? Why is that?
Re:First Detection of the 21cm Cosmic Dawn Signal
by eosophos on Wednesday March 14, 2018 @10:35PM
(#16590071)
Apparently the particles need to be relativistic, maybe the Sun doesn't generate enough acceleration compared to the central galactic supermassive black hole?
"The plane of the Milky Way is dominated by diffuse radio emission with a brightness temperature of thousands of Kelvin at low radio frequencies (Zheng et al. 2016). This emission originates from relativistic electrons interacting with the Galactic magnetic field."
https://uhra.herts.ac.uk/bitstream/handle/2299/17665/stw2959...