Letter | Published:

Relative Diameters of Galaxies

Naturevolume 166page192 (1950) | Download Citation

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Abstract

IN their communication on galactic noise and the rotation of the galaxy1, Bolton and Westfold remark, on the basis of some early measures from the Mt. Wilson Observatory2, that “the size of the external galaxies increases steadily with increasing spiral structure”, and this result is used to support the surmise that our own large galaxy presumably has spiral structure. There are other strong evidences of the spiral structure of our galactic system, and therefore the revision of the results underlying the statement quoted above is of no consequence to the subject-matter of the communication by Bolton and Westfold.

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References

  1. 1

    Bolton, J. G., and Westfold, K. C., Nature, 165, 487 (1950).

  2. 2

    Hubble, E. P., Mt. Wilson Contr., 324, 42 (1926). See also “The Realm of the Nebulæ”, 178 (Yale Univ. Press, 1936).

  3. 3

    Shapley, H., Mon. Not. Roy. Astro. Soc., 94, 807 (1934).

  4. 4

    Shapley, H., Proc. U.S. Nat. Acad. Sci., 28, 186 (1942), and Harv. Rep., No. 238 (1942).

  5. 5

    Shapley, H., “Galaxies”, 170, 171, 214–219 (Blakiston, 1943).

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Affiliations

  1. Harvard College Observatory, Cambridge, 38, Massachusetts

    • HARLOW SHAPLEY

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DOI

https://doi.org/10.1038/166192a0

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