The polarization of Sigma Orionis E - A curious eclipsing binary

Details The polarization of Sigma Orionis E - A curious eclipsing binary The polarization of Sigma Orionis E - A curious eclipsing binary

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218..770k&link_type=abstract

Astrophysical Journal, Part 1, vol. 218, Dec. 15, 1977, p. 770-775.

Astronomy and Astrophysics

Astrophysics

29

B Stars, Eclipsing Binary Stars, Linear Polarization, Ubv Spectra, Variable Stars, Fourier Analysis, Harmonic Analysis, Light Curve, Power Spectra

Scientific paper

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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