Magnetic field evidence for the supergiant Nu CEP /HD 207260/

Details Magnetic field evidence for the supergiant Nu CEP /HD 207260/ Magnetic field evidence for the supergiant Nu CEP /HD 207260/

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.195..853s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 195, June 1981, p. 853-855.

Astronomy and Astrophysics

Astronomy

8

A Stars, Magnetic Stars, Stellar Magnetic Fields, Stellar Motions, Supergiant Stars, Circular Polarization, Field Strength, Line Spectra, Radial Velocity, Stellar Rotation, Stellar Spectra, Stellar Spectrophotometry, Variability

Scientific paper

The effective magnetic fields and the radial velocities of the supergiant Nu Cep (HD 207260) are analyzed on the basis of 55 Zeeman spectrograms. A slow periodic magnetic field variation was noted, and it is concluded that the magnetic period of about 4 years would yield an equatorial rotational velocity of approximately 1.2 km/s. It is suggested that the slow variation observed may be produced by a so far unknown physical process within the Nu C, rather than attributing the phenomenon solely to the rotation of the star.

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