Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11...51s&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 11, Jan. 1985, p. 51-54) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, Jan.-Feb.
Astronomy and Astrophysics
Astronomy
3
Lyra Constellation, Magnetic Stars, Stellar Magnetic Fields, Emission Spectra, Field Strength, Magnetic Variations, Spectrograms
Scientific paper
A total of 110 new Zeeman spectrograms of the Beta Lyrae binary system have been obtained using the 6-meter telescope of the Special Astrophysical Observatory of the USSR. The dispersion of the spectrograms was 9 A/mm. The effective magnetic field strengths of ionized-metal emission lines in Beta Lyr were calculated based on the expression He = 52.7 D(4500/lambda) sq Delta L/z, where D is the spectrogram dispersion; Delta L is the measured line-splitting (in microns); and z is the Lande factor. The estimated mean effective magnetic field strength was -1400 gauss with a variation of plus or minus 600 gauss corresponding to the orbital period of Beta Lyr. The continuous spectrum of Beta Lyr exhibited a depression at 5200 A, and the maximum depth of the depression was found in relation to the peak strengths of the magnetic field.
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