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Radio Halo
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Geliefert zwischen Mi., 26.11.2025 und Do., 27.11.2025
Details
High Quality Content by WIKIPEDIA articles! Radio halos are large-scale areas of radio emission found in clusters of galaxies. They do not have an obvious galaxy counterpart, as opposed, for example, to radio galaxies which have AGN counterparts. Their cause is still debated, but they may come to exist due to reacceleration of mildly relativistic particles (electrons) happening during a merger event between galaxy clusters: the generated turbulent motions of the intra-cluster plasma drive Magneto-Hydrodynamical Waves, which couples with mildly relativistic particles (i.e. of energy on the level of 102MeV) and accelerate them up to energy of 10GeV or more. They are found at the centre of clusters. Radio relics are similar features found at the edge of clusters, even though their driving mechanism should be different (emitting electrons are more likely accelerated not by turbulence, but by shock waves instead).
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131394676
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- Genre Physik & Astronomie
- EAN 9786131394676
- Titel Radio Halo
- Herausgeber Betascript Publishing
- Anzahl Seiten 172
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