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Polarization Measurements and Extinction Near the NGP

Published online by Cambridge University Press:  30 March 2016

T. Markkanen
T. Markkanen*
Affiliation:
University of Helsinki, Observatory and Astrophysics Laboratory

Extract

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In order to study interstellar extinction near the NGP a polarization observation programme has been undertaken at the Metsähovi Observatory of the University of Helsinki. 32 stars (b>80°) have been measured with an accuracy of a few hundredths of a percent. To this list observations of 42 stars made by Appenzeller (1968) were added. The stars measured have distances up to 400 pc (Figure 1).

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 4 , Issue 2: Highlights of Astronomy. As presented at the XVIth General Assembly of the IAU, 1976 (Part II) , 1977 , pp. 57 - 58
Copyright
Copyright © Reidel 1977

References

Appenzeller, I.: 1968, Astrophys. J. 151, 907.CrossRefGoogle Scholar
Feltz, K. A. Jr.: 1972, Publ. Astron. Soc. Pacific 84, 497.CrossRefGoogle Scholar
Hilditch, R. W., Hill, G. and Barnes, J. V.: 1976, Monthly Notices Roy. Astron. Soc. 176, 175.Google Scholar