Relation between surface magnetic field intensities and Geneva photometry

Details Relation between surface magnetic field intensities and Geneva photometry Relation between surface magnetic field intensities and Geneva photometry

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....88..135c&link_type=abstract

Astronomy and Astrophysics, vol. 88, no. 1-2, Aug. 1980, p. 135-140.

Astronomy and Astrophysics

Astrophysics

57

A Stars, B Stars, Magnetic Stars, Stellar Magnetic Fields, Stellar Spectra, Stellar Spectrophotometry, Early Stars, Field Strength, Line Spectra, Stellar Luminosity, Stellar Models, Stellar Temperature, Zeeman Effect

Scientific paper

An attempt is made to show that the global effects of the magnetic field on the visible spectrum of B-type stars can be detected by multicolor photometry and that a rough order of magnitude of surface field intensities may be estimated. Following Maitzen (1976) who analyzed the 5200-A depression of Ap stars and the contributions of Hauck (1976) and North (1980) on photometric effects of magnetic stars in the Geneva system, a technique is presented which makes it possible to estimate the order of magnitude of field intensities for stars of effective temperature in the range 10,000-20,000 K and log gravity between 4.5 and 3.5.

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