[Cosmo-torun] Fri 6 March - Zbyszek Bulinski - T^3 and Poincare dodecahedral space
boud w astro.uni.torun.pl
Śro, 4 Mar 2009, 17:14:14 CET
As we said last week:
16.00 Fri 6 March @KRA - Zbyszek will tell us about where he's got
to in his T^3 and Poincare space modelling (i won't say details
on this list, because the work is, for obvious reasons, so far
unpublished :), and we can give some feedback.
On Fri, 27 Feb 2009, Boud Roukema wrote:
> witam cosmo-torun
> * circular polarisation from synchrotron processes?
> Kennett & Melrose, 1998, PASA, 15, 211
>> In some sources it may be that the relativistic
>> particles are electron-positron pairs (e.g., Wilson &
>> Weiler 1997). Electrons and positrons contribute with
>> the same sign to the linearly polarized component and
>> with the opposite sign to the circularly polarized
>> component. If the distributions of electrons and
>> positrons are the same the wave modes can have no
>> circular component and, more importantly, the intrinsic
>> circular polarization from the synchrotron radiation
>> sums to zero.
> So if we have different distributions of electrons and
> positrons, then we get a circular polarisation component.
> i'm sure there must be more basic texts on this subject...
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