NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Gravitational spurs and resonances - Effects of small mass disturbers in spiral galaxy disksIn the present simulations of a disturber in a complete stellar disk without the restrictive assumption, the disturber parameters of the NGC 206 cloud in M 31 were assumed as a realistic example. The resulting spur around the disturber was comparable in shape, size, and strength to Julian and Toomre's (1966) results. In addition, a complicated evolving pattern of strong density peaks appeared well inside and outside the disturber's orbit. Simulation with a ten-times-more-massive disturber showed a more clearly defined version of the same initial pattern, two spiral arms of density peaks rotating with the disturber in the stronger arm. The orbital radii of the density peaks correspond to those of epicyclic resonances with the orbiting disturber potential.
Document ID
19850036032
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Byrd, G. G.
(Alabama, University University, AL, United States)
Smith, B. F.
(NASA Ames Research Center Theoretical and Planetary Studies Branch, Moffett Field, CA, United States)
Miller, R. H.
(Chicago, University Chicago, IL, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1984
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 286
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
85A18183
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available