Relative velocities of multiple-nucleus galaxies

Details Relative velocities of multiple-nucleus galaxies Relative velocities of multiple-nucleus galaxies

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.216p..71s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 216, Oct. 1, 1985, p. 71P-78P.

Astronomy and Astrophysics

Astronomy

21

Celestial Mechanics, Galactic Nuclei, Radial Velocity, Red Shift, Velocity Distribution

Scientific paper

Relative velocities of the components in 17 multiple-nucleus galaxies have been measured. Combining these results with previously published data, the authors find that the distribution of velocity differences is consistent with random sampling from a Gaussian with a dispersion of ≡800 km s-1, typical of that found in rich clusters. These results are compatible with Merritt's recent suggestion that the majority of the secondary components in multiple-nucleus systems are not bound to the central galaxy and will not merge on a dynamical time-scale.

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