VLA observations of A and B stars with kilogauss magnetic fieldsThe serendipitous discovery that the star Sigma Ori E is a 3.5 mJy radio continuum source at 6 cm has stimulated a radio survey of other early-type stars with strong magnetic fields. No Ap stars have been detected of the eight observed, with typical 3-sigma upper limits of 0.5 mJy at 2 cm. Of the six Bp stars examined, only HR 1890, a helium-strong star, was detected. Possible emission mechanisms for the observed radio emission are discussed, and it is concluded that nonthermal emission seems the most plausible, on the basis of the present data.
Document ID
19860053291
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Drake, S. A. (Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Abbott, D. C. (Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Linsky, J. L. (Joint Institute for Laboratory Astrophysics Boulder, CO, United States)
Bieging, J. H. (California, University Berkeley, United States)
Churchwell, E. (Wisconsin, University Madison, United States)