Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pasau...3...68v&link_type=abstract
(Astronomical Society of Australia, Annual General Meeting, 10th, Sydney, Australia, May 12-14, 1976.) Astronomical Society of A
Astronomy and Astrophysics
Astronomy
14
Astronomical Photography, Galactic Radiation, Galactic Structure, Hydrogen, Astronomical Catalogs, Photographic Plates, Schmidt Telescopes, Spatial Distribution, Velocity Distribution
Scientific paper
Observations of the 21-cm line of neutral hydrogen can provide several integral properties of galaxies, the systemic velocity indicating the distance via the Hubble relation or through group membership. The integral over the flux density profile immediately yields the amount of neutral hydrogen in the galaxy. In the study described, the Parkes 64-m telescope, with a beamwidth of 15 seconds of arc, was used in combination with a 1024-channel auto-correlation spectrometer to survey neutral hydrogen in southern galaxies. The hydrogen distribution and velocity field are mapped for several dozen objects, so that the hydrogen diameter and rotation axis may be determined. In the analysis, priority is given to lenticular galaxies.
Goss William Miller
Hawarden Tim G.
Mebold Ulrich
Siegman B.
van Woerden Hugo
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