Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...137..343r&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 137, no. 2, Aug. 1984, p. 343-357. Sponsorship: Deutsche Forschungsgemeinschaf
Astronomy and Astrophysics
Astrophysics
165
Astronomical Spectroscopy, Centimeter Waves, Hydrogen, Line Spectra, Magellanic Clouds, Neutral Gases, Astronomical Catalogs, Astronomical Maps, Normal Density Functions, Spectral Energy Distribution
Scientific paper
The 21 cm line of the LMC has been surveyed with the low noise high frequency resolution Parkes 64 m telescope. The channel maps and the large-scale velocity field of the weighted mean radial velocity of the profiles are characteristic of a differentially rotating disk at a position angle for the kinematic major axis of 208 deg NESW. Large-scale neutral hydrogen structures were found: (1) a large cloud embedding the 30 Dor complex and extending further south for 2 deg as a strong perturbation of the velocity field; and (2) a second cloud with even higher radial velocity. The Shapley III constellation is visible as a void in H I and appears also as a depression in the weighted velocity field of 15 km/s. In the innermost 1.5 deg of the cloud, strong indications of for non-circular motions were found, even in the tangential direction.
Feitzinger Johannes Viktor
Kreitschmann J.
Rohlfs Kristen
Siegman Betty C.
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