The radio-far-infrared relation of interacting and non-interacting spiral galaxies. I - Observations and data collection

Astronomy and Astrophysics – Astrophysics

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Far Infrared Radiation, Interacting Galaxies, Radio Emission, Spiral Galaxies, Cosmic Dust, H Ii Regions, Luminosity

Scientific paper

Data from 6.3-cm radio continuum, H I, and far-infrared (FIR) observations are presented for a sample of isolated pairs of spiral galaxies, and for a comparison sample of noninteracting ones. H I data are used to separate the FIR emission of the cold and warm dust component, employing a modification of the model presented by Buat and Deharveng (1988). The FIR flux of the warm dust component is used to estimate the thermal radio emission for some galaxies. A comparison between the calculated thermal 6.3-cm flux densities and those derived from radio observations show good agreement. It is concluded that the model for the separation of the cold and warm dust component can be used for a further examination of the radio-FIR correlation.

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