A radio-optical study of blue compact dwarf galaxies. I. Radio continuum observations

Details A radio-optical study of blue compact dwarf galaxies. I. Radio continuum observations A radio-optical study of blue compact dwarf galaxies. I. Radio continuum observations

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...246..323k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 246, no. 2, June 1991, p. 323-340.

Astronomy and Astrophysics

Astronomy

61

Astronomical Spectroscopy, Compact Galaxies, Dwarf Galaxies, Radio Astronomy, Very Large Array (Vla), Cosmic Rays, Far Infrared Radiation, Optical Properties, Spiral Galaxies, Star Formation, Stellar Luminosity

Scientific paper

Results are presented on a radio continuum investigation of 26 blue compact dwarf galaxies (BCDGs), using the NRAO-VLA and the Effelsberg 100-m telescope. It is found that the radio continuum spectra of these BCDGs support the finding of Klein et al. (1984) that they are generally flatter than those of normal spiral galaxies. In five cases it was possible to disentangle the thermal and nonthermal radio components. It is shown that the radio spectral index is related to the optical luminosity of BCDGs: the more luminous the BCDGs, the steeper are their spectra.

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