The magnetic field of W SGR - New Zeeman measurements

Details The magnetic field of W SGR - New Zeeman measurements The magnetic field of W SGR - New Zeeman measurements

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....61..181w&link_type=abstract

Astronomy and Astrophysics, vol. 61, no. 2, Oct. 1977, p. 181-184. Oesterreichischer Fonds zur Foerderung der Wissenschaftliche

Astronomy and Astrophysics

Astrophysics

12

Cepheid Variables, Stellar Magnetic Fields, Zeeman Effect, Magnetic Stars, Radial Velocity, Statistical Analysis

Scientific paper

Additional coude Zeeman plates and a statistical approach to the measurement of the plates yielding higher accuracy are presented. The observations confirm the earlier contention that the bright southern Cepheid W Sgr shows a measurable magnetic field. Two hypotheses are presented for the interpretation of the observations: a full-period irregularly shaped curve or a sine curve with 1/10 the pulsational period. More observations are required to test the hypotheses.

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