Abstract
view Abstract Citations (13) References (20) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Tidal Interaction of Galaxies Knobloch, Edgar Abstract In this paper we investigate the effect of weak tidal interactions among galaxies in clusters. We obtain the Fokker-Planck coefficients for this process by making use of the impulse approximation. We assume that the outer regions of a galaxy are well described by isotropically distributed stellar orbits with small angnlar momenta. In this case the stellar distribution function is a function of energy and time only. We are able to solve the resulting Fokker-Planck equation for power-law potentials, and find that there are no globally self-consistent solutions of this type. Our calculation indicates that stars are preferentially stripped from the outer regions rather than forming a relaxed extended envelope. We conclude that the effect of the fluctuating term in the tidal force is qualitatively similar to that of the usual secular term. Subject headings: galaxies: clusters of - galaxies: strncture - stars: stellar dynamics Publication: The Astrophysical Journal Supplement Series Pub Date: November 1978 DOI: 10.1086/190556 Bibcode: 1978ApJS...38..253K full text sources ADS |
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