Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...325..529s&link_type=abstract
Astronomy and Astrophysics, v.325, p.529-534
Astronomy and Astrophysics
Astrophysics
14
Stars: Chemically Peculiar, Stars: Individual: {Gamma} Equ, Stars: Magnetic Fields, Stars: Rotation
Scientific paper
From an analysis of some new spectroscopic observations of the magnetic CP star γ Equ we derived an effective magnetic field of -930+/-150G and a surface magnetic field of 4000G. The magnitude of the effective field is compatible with a variation of the field on a time scale of a little more than 70 years. The temporal behaviour of the magnetic field is explained by the superposition of a dipole and quadrupole and the model of the oblique rotator. Surprisingly a few radial velocity values differ from the expected ones by about 10km/s.
Glagolevskij Yu. V.
Hildebrandt Gerald
Lehmann Holger
Scholz Gerhard
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