Dynamical friction due to cosmological background. II Newtonian cosmology

Details Dynamical friction due to cosmological background. II Newtonian cosmology Dynamical friction due to cosmological background. II Newtonian cosmology

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984baicz..35..343h&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 35, no. 6, 1984, p. 343-346.

Statistics

Computation

2

Background Radiation, Celestial Bodies, Computational Astrophysics, Cosmology, Friction, Radiation Effects, Cosmic Dust

Scientific paper

The dynamical friction produced by the condensation of a narrow infinitely massive tail of background dust behind a gravitating body moving in a Newtonian universe is investigated theoretically, extending the analysis of Hadrava (1983) to determine the cutoff radius for dynamical friction due to nonrelativistic particles. The perturbation introduced into the Newtonian cosmological model by the body is found to be negligible at velocities much greater than 45 km/s, assuming a mass of 1.4 x 10 to the 11th solar mass and H = 100 km/s, conditions satisfied in earlier stages of cosmological evolution. The v/c horizon radius is shown to be the appropriate cutoff radius for dynamical friction.

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