Quote:
Originally Posted by CraigS
G'Day Bojan;
Welcome back to the Science Forum !
From the first paper:
They differentiate between the two (spin, and the spin angular momentum along the direction of propagation). The latter is quantised and in the model, one of its discrete values can be applied to light having been effected by a rotating BH (as distinct from other values, which can be used to infer other effects).
Cheers |
So, in a nutshell, we are talking about circular polarisation of the incoming radio signal.
The receiving of such signals is nothing really new.. Helical and some patch antennas are circularly polarised.
They are suggesting that the radio signal, passing near BH will be circularly polarised as a consequence of passing near rotating BH ?