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A survey of the distribution of lambda 2.8 CM radio continuum in nearby galaxies. IV. NGC 253.

U. Klein, M. Urbaník, R. Beck, R. Wielebinski

Abstract

La galaxie spirale proche NGC 253 a ete observee a 10,7 GHz (λ2,8 cm). La morphologie radio de NGC 253 presente 3 composantes principales: une source centrale contribuant pour environ la moitie de la densite de flux totale, un disque interne brillant et un disque externe faible. L'emission thermique contribue pour environ 20% a la densite de flux 10,7 GHz totale. L'analyse de la polarisation lineaire montre que peu de lignes de champ magnetique sont orientees suivant les bras spiraux

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Key concepts: Physics, Astrophysics, Galaxy, Radio galaxy, Lambda, Astronomy, Spiral galaxy, Optics