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Some simple limits on size and rotation speed of astrophysical objects emitting by accretion

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Abstract

We demonstrate that the so-called ‘force balance point’, due to either magnetic fields (then known more specifically as the Alfvén point) or to co-rotation (Roche point), together with the concepts of flux and mass conservation, allows one to place interesting limits on both the size and angular velocity of astrophysical objects emitting by mass accretion. We give three numerical examples, which would seem to be of some astrophysical interest.

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  1. I. Lerche

    Present address: Enrico Fermi Institute, University of Chicago, 60637, Chicago, Illinois, USA

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  1. Institut für extraterrestrische Physik, Max-Planck-Institut für Physik und Astrophysik, Garching bei München, West Germany

    I. Lerche

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  1. I. Lerche
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Lerche, I. Some simple limits on size and rotation speed of astrophysical objects emitting by accretion. Astrophys Space Sci 43, 91–96 (1976). https://doi.org/10.1007/BF00640558

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  • DOI: https://doi.org/10.1007/BF00640558

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