The nuclear ring of the barred galaxy NGC 1326

Details The nuclear ring of the barred galaxy NGC 1326 The nuclear ring of the barred galaxy NGC 1326

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991rmxaa..22..197g&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica (ISSN 0185-1101), vol. 22, Oct. 1991, p. 197-212. Research supported by Universidad

Astronomy and Astrophysics

Astronomy

21

Barred Galaxies, Galactic Nuclei, Ring Structures, Carbon Monoxide, H Alpha Line, Infrared Photometry, Radio Emission, Star Formation

Scientific paper

High-resolution observations are reported of the radio-continuum emission from the central region of the barred spiral galaxy NGC 1326. The observations include emissions from the central region at 1.49, 4.86, and 14.9 GHz, optical R-band continuum data, and H alpha emission. Also included are the results of near-IR broadband photometry at wavelengths of 1.25, 1.65, and 2.2 microns, as well as observations of the CO(1-0) and CO(2-1) emissions. The observations indicate a ring structure around a compact optical nucleus, and no strong radio source is identified for the compact nucleus. The typical electron density of the H II regions is given as more than 8/cu cm, and the electron density of the the ring emission is less than 100/cu cm. A mass model is employed to reproduce the observed velocities which suggests that the two observed rings are due to gravitational perturbation of the bar in the object.

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