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8.4. Properties of synchrotron emission and magnetic fields in the central region of M31
Published online by Cambridge University Press: 25 May 2016
Abstract
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.
- Type
- Part II. Nuclear Interstellar Medium
- Information
- Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 351 - 352
- Copyright
- Copyright © Kluwer 1998
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