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The Magellanic Stream: Observational Considerations

Published online by Cambridge University Press:  14 August 2015

D. S. Mathewson ,
V. L. Ford ,
M. P. Schwarz  and
J. D. Murray
D. S. Mathewson
Affiliation:
Mt Stromlo and Siding Spring Observatories The Australian National University
V. L. Ford
Affiliation:
Mt Stromlo and Siding Spring Observatories The Australian National University
M. P. Schwarz
Affiliation:
Mt Stromlo and Siding Spring Observatories The Australian National University
J. D. Murray
Affiliation:
Division of Radiophysics, CSIRO, Australia

Extract

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The Magellanic Stream is an arc of neutral hydrogen which nearly follows a great circle and which contains the Magellanic Clouds - hence its name (Mathewson, Cleary and Murray 1974). This great circle passes within a few degrees of the south galactic pole and lies close to the supergalactic plane. Mathewson and Schwarz (1976) argued that this indicates that the Magellanic Stream and Magellanic Clouds are not bound to the Galaxy. To reinforce this argument, they pointed out that around the supergalactic plane there is a similar systematic variation in the velocities of the Local Group and those of the Stream which may be due to the reflection of the motion of the galactic center if the velocity of rotatior of the Sun is 225 km s−1; if it is 290 km s−1 then the grounds for this argument would disappear.

Type
X. HIGH-VELOCITY CLOUDS AND THE MAGELLANIC STREAMS
Information
Symposium - International Astronomical Union , Volume 84: The Large-Scale Characteristics of the Galaxy , 1979 , pp. 547 - 556
Copyright
Copyright © Reidel 1979 

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