Abstract
IN his communication in NATURE1 on non-solar planetary systems, Sir James Jeans writes, "Mr. Sen refers with approval to Banerji's modification of this [tidal] theory. This makes the original sun a Cepheid which had its oscillatory instability increased by the gravitational attraction of a passing star. But a passing star cannot increase the instability of a Cepheid appreciably unless it comes very near.... Judging from their luminosity, all Cepheids are much more massive than the sun or 61 Cygni or 70 Ophiuchi".
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References
NATURE, 152, 721 (1943).
Banerji, A. C., Proc. Nat. Inst. Sci. Ind., 8, 173 (1942).
NATURE, 149, 695 (1942).
NATURE, 152, 600 (1943).
Jeans, J. H., "Astronomy and Cosmogony", 401 (1928).
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BANERJI, A. Non-Solar Planetary Systems. Nature 153, 779 (1944). https://doi.org/10.1038/153779a0
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DOI: https://doi.org/10.1038/153779a0
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