Late B-type stars and their candidate companions resolved with Chandra ?

  title={Late B-type stars and their candidate companions resolved with Chandra ?},
  author={Beate Stelzer and Nuria Hu{\'e}lamo and Swetlana Hubrig and Hans Zinnecker and G.I.F.C.O.C.N.R. Palermo and - Eso Chile and - AI Potsdam},
  journal={Astronomy and Astrophysics},
We present the first results from a series of Chandra observations carried out with the aim to examine the origin of X-ray emission in main-sequence late B-type stars. X-ray detections of late-B and early A-type stars have remained a mystery as none of the two major theories for stellar X-ray emission applies in this spectral range: while O- and early B-type stars drive strong winds that are subject to instabilities, late-type stars produce X-rays as a result of magnetic dynamo action. Since… Expand

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