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Title:
The polarization of Sigma Orionis E - A curious eclipsing binary
Authors:
Kemp, J. C.; Herman, L. C.
Affiliation:
AA(Oregon, University, Eugene, Ore.), AB(Oregon, University, Eugene, Ore.)
Publication:
Astrophysical Journal, Part 1, vol. 218, Dec. 15, 1977, p. 770-775. (ApJ Homepage)
Publication Date:
12/1977
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
B STARS, ECLIPSING BINARY STARS, LINEAR POLARIZATION, UBV SPECTRA, VARIABLE STARS, FOURIER ANALYSIS, HARMONIC ANALYSIS, LIGHT CURVE, POWER SPECTRA
Comment:
A&AA ID. AAA020.121.032
DOI:
10.1086/155733
Bibliographic Code:
1977ApJ...218..770K

Abstract

The linear polarization of the enigmatic object Sigma Ori E was measured on 33 nights in January-March 1977. Variation synchronous with the 1.19-day light period was found in the B filter, with peak-to-peak amplitude of about 0.10%. Lower-accuracy data in the U filter show a different polarization structure. The polarization curves suggest a strongly inclined system with an apparent inclination of approximately 76 deg and are compatible, for example, with a binary containing a highly nonspherical component such as a disk.

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