Polarization Effects on the Profile of the Hβ Line in the Light from the Star γ Ursa Majoris

Abstract

DURING February 1965 we observed some absorption lines in the spectra of several stars in orthogonal planes of polarization. The measurements were made with a photoelectric grating spectrometer1 to which a rotatable ‘Polaroid’ had been added after the exit slit. The instrument was used at both the Newtonian and Cassegrain foci of the 48-in. telescope of the University of Padua's Observatory at Asiago, Italy.

References

  1. 1

    An improved version of the instrument referred to in: Grainger, J. F., and Ring, J., Mon. Not. Roy. Astro. Soc., 125, 93 (1963).

  2. 2

    Öhman, Y., Astrophys. J., 104, 460 (1946).

  3. 3

    Öhman, Y., Nature, 134, 534 (1934).

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CLARKE, D., GRAINGER, J. Polarization Effects on the Profile of the Hβ Line in the Light from the Star γ Ursa Majoris. Nature 207, 1180 (1965). https://doi.org/10.1038/2071180a0

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