Periodic radio emission from the helium strong stars HD 37017 and Sigma ORI E

Details Periodic radio emission from the helium strong stars HD 37017 and Sigma ORI E Periodic radio emission from the helium strong stars HD 37017 and Sigma ORI E

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...268..667l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 268, no. 2, p. 667-670.

Astronomy and Astrophysics

Astrophysics

24

Helium, Peculiar Stars, Radio Emission, Stellar Composition, Light Curve, Stellar Atmospheres, Stellar Magnetic Fields, Very Large Array (Vla)

Scientific paper

Drake et al. (1987) detected, for the first time, radio emission from magnetic chemically peculiar stars. Leone (1991) put forward the hypothesis that such emission could be periodically variable. In order to verify such surmise, the magnetic chemically peculiar stars HD 37017 and Sigma Ori E have been observed with the VLA at 6 cm. By combining our data with those obtained by Drake et al. (1987) and Phillips and Lestrade (1988), we show that the radio emission from HD 37017 and Sigma Ori E varies with the rotational period. Magnetic field extrema coincide with radio maxima and magnetic nulls coincide with radio minima.

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