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Gas Dynamics of Galaxy Collisions

Published online by Cambridge University Press:  03 August 2017

M. P. Savedoff
M. P. Savedoff*
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester, New York

Extract

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When two galaxies collide at extremely high velocities, Baade and Spitzer note that negligible stellar effects are anticipated but that the interstellar medium is violently affected. Recently the radio source Cygnus A has been identified with what appears to be two colliding galaxies. Baade and Minkowski describe the optical nebula as two … “late-type systems, judging by low density gradients of the two disks. Spatially they are oriented face to face, they are slightly decentered, and we look upon them at an angle not far from 45°.” “ … the two systems must be in close contact because of the strong signs of tidal distortion which the nuclei show.” The lines are noted as diffuse.

Type
Part VI: Conditions at the Ionization and Shock Fronts in Collisions of Gas Clouds
Information
Symposium - International Astronomical Union , Volume 8: Cosmical Gas Dynamics , July 1958 , pp. 1074 - 1076
Copyright
Copyright © American Physical Society 1958 

References

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