8.4. Properties of synchrotron emission and magnetic fields in the central region of M31

Autor:	P. Hoernes, R. Beck, E. M. Berkhuijsen
Rok vydání:	1998
Předmět:	Physics Synchrotron emission 010504 meteorology & atmospheric sciences 0103 physical sciences Atomic physics 010303 astronomy & astrophysics 01 natural sciences Central region 0105 earth and related environmental sciences Magnetic field
Zdroj:	Symposium - International Astronomical Union. 184:351-352
ISSN:	0074-1809
DOI:	10.1017/s007418090008517x
Popis:	At the centre of M31 the nonthermal spectral index between λ20 cm and λ6 cm is −0.2. It slowly decreases along the southern arm and the northern filaments visible in Hα, but perpendicular to these features it increases much faster. The magnetic field runs along the arm and the filaments. These phenomena suggest the existence of a mono-energetic source of relativistic electrons in the nucleus.
Databáze:	OpenAIRE
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