Radio continuum observations of the bar of NGC 1097

Details Radio continuum observations of the bar of NGC 1097 Radio continuum observations of the bar of NGC 1097

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...269l..47o&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 269, June 15, 1983, p. L47-L50.

Astronomy and Astrophysics

Astronomy

33

Barred Galaxies, Emission Spectra, Galactic Structure, Gas Flow, Radio Sources (Astronomy), Shock Wave Propagation, Astronomical Models, Compressing, Cosmic Dust, Gas Density, Interstellar Magnetic Fields, Nonthermal Radiation, Shock Fronts

Scientific paper

Radio continuum observations of NGC 1097 at 1465 MHz with the VLA reveal emission coincident with the straight, narrow dust lanes in the bar. It is believed that this is nonthermal emission produced by the shock compression of the gas, dust, and magnetic field in the bar. This shock compression is a common feature of models dealing with the gas flow in barred spiral galaxies. The present results thus provide strong evidence that the predicted shock fronts do indeed exist.

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