Radio continuum emission and arm classification in spiral galaxies

Details Radio continuum emission and arm classification in spiral galaxies Radio continuum emission and arm classification in spiral galaxies

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...208...27g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 208, no. 1-2, Jan. 1989, p. 27-31. Research supported by CNR and MPI.

Astronomy and Astrophysics

Astrophysics

5

Galactic Structure, Radio Galaxies, Spiral Galaxies, Density Wave Model, Radio Emission, Star Formation Rate, X Ray Spectra

Scientific paper

An investigation of the ratio continuum properties of the spiral galaxies which have been classified in the Elmegreen and Elmegreen (1987) arm morphology system reveals no difference in the radio continuum emission (per unit light) for flocculent and grand design spirals. Nor is the X-ray emission (per unit light) of the two classes of spirals different. In agreement with recent views, these results may be taken as a further, independent piece of evidence that star formation activity in spirals does not appreciably depend on their arm classification. On the other hand, it is found that flocculent galaxies are more frequently encountered in samples of interacting and binary galaxies than among relatively isolated objects.

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