Abstract
REDDISH1 has suggested that there is a major discontinuity in the stellar and interstellar features of the galaxy at lII = 140°. The evidence comes from large changes in the space densities of Wolf–Rayet stars, dust-embedded OB stars and globules, in the rotation with wavelength of the position angles of interstellar polarization of starlight, and in the distribution of the position angles of the polarization of the radio emission. These interstellar features appear to rule out the apparent termination of the Perseus Spiral Arm as the cause of the discontinuity2, a conclusion supported by an absence of a discontinuity in the surface density of neutral hydrogen at this longitude3.
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References
Reddish, V. C., Nature, 213, 1107 (1967).
Becker, W., Z. Für. Ap., 58, 202 (1964).
Westerhout, G., Maryland–Greenbank Galactic 21-cm Line Survey, first ed. (University of Maryland, 1966).
Nandy, K., Pub. Roy. Obs. Edin., 3, 142 (1964).
Nandy, K., Pub. Roy. Obs. Edin., 5, 13 (1965).
Nandy, K., Pub. Roy. Obs. Edin., 5, 233 (1966).
Nandy, K., Pub. Roy. Obs. Edin., 6, 25 (1967).
Nandy, K., Pub. Roy. Obs. Edin., 6 (in the press).
Whitford, A. E., Astron. J., 63, 201 (1958).
Underhill, A. B., and Walker, G. A. H., Mon. Not. Roy. Astro. Soc., 131, 475 (1966).
Reddish, V. C., Pub. Roy. Obs. Edin., 6, 15 (1967).
Greenberg, J. M., and Meltzer, A. S., Astrophys. J., 132, 667 (1960).
Wilson, R., Mon. Not. Roy. Astro. Soc., 120, 51 (1960).
McCuskey, S. W., Astrophys. J., 123, 458 (1956).
Sim, M. E., Pub. Roy. Obs. Edin., 6 (in the press).
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BRÜCK, M., IRELAND, J., NANDY, K. et al. Galactic Discontinuity near lII = 140°. Nature 218, 662–663 (1968). https://doi.org/10.1038/218662a0
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DOI: https://doi.org/10.1038/218662a0
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