Neutral hydrogen observations of southern galaxies

Details Neutral hydrogen observations of southern galaxies Neutral hydrogen observations of southern galaxies

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.236..171d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 236, Jan. 1, 1989, p. 171-185.

Astronomy and Astrophysics

Astronomy

18

Galaxies, H I Regions, Southern Sky, Radiant Flux Density, Signal To Noise Ratios

Scientific paper

21-cm neutral hydrogen observations, made using the 64-m Parkes radio telescope, are presented for 48 galaxies, 39 of which are clear detections. The HI properties and homogeneous optical data, including new photometry, are tabulated for the galaxies. A high signal-to-noise ratio subset of these observations is used to demonstrate that the overall flux-density scale is within a few per cent of northern (Jodrell Bank, and Green Bank) scales. HI-optical diameter correlations are shown to be a useful discriminant between competing diameter systems and indicate that the Lauberts ESO(B) catalogue is the most useful currently available source of southern galaxy diameters.

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