Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...213..374s&link_type=abstract
Astrophysical Journal, Part 1, vol. 213, Apr. 15, 1977, p. 374-378.
Astronomy and Astrophysics
Astronomy
12
Galactic Structure, Magellanic Clouds, Milky Way Galaxy, Radio Sources (Astronomy), Astronomical Models, Stellar Motions, Ultrahigh Frequencies, Warpage
Scientific paper
The gravitational interaction between the Milky Way and the Large Magellanic Cloud has been studied for a range of conditions by computer simulation, using 12K massless points in a modified three-body interaction. Calculations indicate that substantial warping of the galactic plane can be caused by a retrograde encounter at a perigalactic distance of 20 kpc with reasonable values for the masses. From the model, a relief map of the z-displacement of the particles is compared with previous maps derived from H I observations. Agreement is quite good for the observed northern (between approximately 40 and 60 deg galactic longitude) warping, but the model predicts a symmetric displacement on the southern (between approximately 300 and 310 deg galactic longitude) side. This result is discussed in light of recent 21-cm observations, which indicate a large distortion of the H I distribution for longitudes of 270 to 300 deg.
Grayzeck E.
Spight L.
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