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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

1. Hall, J. S.: Spectrophotometry of 67 Bright Stars with a Photoelectric Cell. Astrophys. J., vol. 94, 1941, p. 72.10.1086/144313CrossRefGoogle Scholar
2. Elvius, A.; and Hall, J. S.: Three-Color Observations of Polarization in the Light From the Reflection Nebulae NGC 2068, 7023, and IC 349, the Crab Nebula and the Galaxies NGC 1068, 3034, and 7814. Astron. J., vol. 70, 1965, p. 138.CrossRefGoogle Scholar
3. Johnson, H. M.: Photoelectric Photometry of Diffuse Galactic Nebulae and Comet Arend-Roland. Astron. Soc. Pacific, Pub., vol. 72, 1960, p. 10.10.1086/127467CrossRefGoogle Scholar
4. Hall, J. S.: The Polarization of Light From Stars Behind Filamentary Structure. Mem. in 8° Soc. Roy. Sci. Liège, ser. 4, vol. 15, 1955, p. 543.Google Scholar
5. Van Den Burgh, S.: Polarisation des Sternlichtes im Gebiet der Plejaden. Zs. Astrophys., vol. 40, 1956, p. 249.Google Scholar
6. Martel, T. M.: Polarisation de la Nébuleuse du Crabe. Polarisation et Couleur des Nébuleuses Diffusantes. Pub. Obs. Haute-Provence, vol. 4, no. 20, 1958.Google Scholar
7. Elvius, A.: Polarization of Light in the Spiral Galaxy NGC 7331 and the Interpretation of Interstellar Polarization. Stockholm Obs. Ann., vol. 19, no. 1, 1956.Google Scholar
8. Anon.: On the Polarization of Light in Reflection Nebulae with Filamentary Structure. Uppsala Astron. Obs. Medd., 1959, p. 121.Google Scholar
9. Struve, O.; Elvey, C. T.; and Keenan, P. C.: On the Colors of Diffuse Nebulae Having Continuous Spectra, Astrophys. J., vol. 77, 1933, p. 274.10.1086/143468CrossRefGoogle Scholar
10. Greenstein, J. L.; and Henyey, L. G.: The Spectra of Two Reflection Nebulae. Astrophys. J., vol. 89, 1939, p. 647.CrossRefGoogle Scholar
11. Schalen, C.: The Colour Distribution in the Nebula Surrounding the Star Merope in the Pleiades. Uppsala Astron. Obs. Ann., vol. 2, no. 5, 1948.Google Scholar
12. O'Dell, C. R.: Photoelectric Spectrophotometry of Gaseous Nebulae II. The Reflection Nebula Around Merope. Astrophys. J., vol. 142, 1965, p. 604.10.1086/148321CrossRefGoogle Scholar
13. Gehrels, T.: Measurements of the Wavelength Dependence of Polarization. Lowell Obs. Bull., vol. 4, 1960, pp. 105, 300.Google Scholar
14. Gliese, W.; and Walker, K.: Polarisationsuntersuchungen am Reflexionsnebel NGC 7023. Zs. Astrophys., vol. 29, 1951, p. 94.Google Scholar
15. Martel, T. M.: Polarisation de la Lumiere Diffusee de NGC 7023. Pub. Obs. Haute-Provence, vol. 2, no. 17, 1951.Google Scholar
16. Weston, E. B.: Polarization of the Reflection Nebula NGC 7023. Astrophys. J., vol. 57, 1952, p. 28.Google Scholar
17. Keenan, P. C.: Photometry of the Diffuse Nebula NGC 7023. Astrophys. J., vol. 84, 1936, p. 600.10.1086/143786CrossRefGoogle Scholar
18. Vanysek, V.; and Svatos, J.: Solid Particles in Reflection Nebulae I. Acta Univ. Carolinae-Math. and Phys., no. 1, 1964, p. 1.Google Scholar
19. Hall, J. S.: Polarization of Starlight in the Galaxy. Pub. U.S. Nav. Obs., vol. 17, 1958, p. 275.Google Scholar
20. Sharpless, S.: A Study of the Orion Aggregate of Early-Type Stars. Astrophys. J., vol. 116, 1952, p. 251.10.1086/145610CrossRefGoogle Scholar
21. Johnson, H. L.; and Morgan, W. W.: Fundamental Stellar Photometry for Standards of Spectral Type on the Revised System of the Yerkes Spectral Atlas. Astrophys. J., vol. 117, 1953, p. 313.10.1086/145697CrossRefGoogle Scholar
22. Mendoza, E. E.: A Spectroscopic Study of the Pleiades. Astrophys. J., vol. 123, 1956, p. 54.Google Scholar
23. Greenstein, J. L.; and Aller, L. H.: Spectra of Stars in Diffuse Nebulae. Astron. Soc. Pacific, Pub., vol. 59, 1947, p. 139.10.1086/125926CrossRefGoogle Scholar
24. Mendoza, E. E.: A Spectroscopic and Photometric Study of the B Stars. Astrophys. J., vol. 128, 1958, p. 207.Google Scholar