Multiplicity of rapidly oscillating Ap stars

@article{Schoeller2012MultiplicityOR,
  title={Multiplicity of rapidly oscillating Ap stars},
  author={M. Schoeller and S. Correia and S. Hubrig and D. Kurtz},
  journal={Astronomy and Astrophysics},
  year={2012},
  volume={545}
}
Context. Rapidly oscillating Ap (roAp) stars have rarely been found in binary or higher order multiple systems. This might have implications for their origin. Aims. We intend to study the multiplicity of this type of chemically peculiar stars, looking for visual companions in the range of angular separation between 0. 05 and 8 ′′ . Methods. We carried out a survey of 28 roAp stars using diffraction-limited near-infrared imaging with NAOS-CONICA at the VLT. Additionally, we observed three non… Expand
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