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Color and Polarization of Reflexion Nebulae NGC 2068, NGC 7023, and Merope Nebula in Three Spectral Regions1

Published online by Cambridge University Press:  08 February 2017

Aina Elvius  and
John S. Hall
Aina Elvius
Affiliation:
Uppsala Observatory, Uppsala, Sweden
John S. Hall
Affiliation:
Lowell Observatory, Flagstaff, Arizona

Extract

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A Survey of the Polarization of Light by the nebulosity within 67 regions of the Pleiades cluster was made in early 1962. The survey was made without color filters. On two nights, however, some preliminary polarization measures were made with color filters; the results obtained in this investigation seemed to be promising enough to justify a more thorough study of polarization in three colors. The polarimeter used in 1962 was not suited for observations in the UV, however, because its polaroid analyzer would have absorbed most of the ultraviolet light.

In early 1963 color measures of nebulosity were made within the Pleiades cluster in the blue and yellow spectral regions. Later that year a few more observations of polarization were made in three colors with a polarimeter which contained a Glan-Thompson analyzer. An entirely new polarimeter with a Glan-Foucault prism was built in 1964.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 7: Proper Motions , August 1965 , pp. 77 - 104
Copyright
Copyright © Kluwer Academic Publishers 1965

Footnotes

1

The contents of this paper were published previously in the Lowell Obs. Bull. No. 135, vol. VI, No. 16, 1966.

References

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