Morphology of the ionized gas in NGC 1313

Details Morphology of the ionized gas in NGC 1313 Morphology of the ionized gas in NGC 1313

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...51..353m&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 51, Feb. 1983, p. 353-364.

Astronomy and Astrophysics

Astrophysics

25

Astronomical Catalogs, Barred Galaxies, Interstellar Gas, Ionized Gases, Brightness, H Ii Regions, Luminosity, Tables (Data)

Scientific paper

A catalogue of 375 H II regions in the barred spiral galaxy NGC 1313 has been drawn from the analysis of an Hα plate taken with a focal reducer and image tube behind the 3.6 m ESO telescope. The H II regions in this SBd galaxy appear to be rather small with an average diameter D0 = 18.4 pc at 4.5 Mpc. The brightest regions are found in the arms, suggesting a stronger density wave there than in the bar. The southern satellite regions, quite apart from the spiral pattern, are interpreted as the result of a recent accretion of H I clouds, causing the asymmetric rotation pointed out by Marcelin and Athanassoula (1982).

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