Astrophysics and Space Science

, Volume 35, Issue 2, pp 403–408 | Cite as

Peculiar A-stars and planetary systems

  • E. M. Drobyshevski


A suggestion is put forward that a number of spectral anomalies observed in some A-stars (Am and Ap-stars) may be due to the existence of planetary systems.

Terrestrial type planets condense in matter exchanged between components of close binaries. Exchange of matter takes place at the stage of system formation and in later stages of evolution, with both late and early stars. If the outer layers of components in a system do not become renewed by mixing or outflow, then surface anomalies in the chemical composition of stars onto which fall some of the forming planetoids may serve as an evidence of the formation of planets.


Outer Layer System Formation Planetary System Close Binary Surface Anomaly 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© D. Reidel Publishing Company 1975

Authors and Affiliations

  • E. M. Drobyshevski
    • 1
  1. 1.A. F. Ioffe Physical-Technical InstituteU.S.S.R. Academy of SciencesLeningradU.S.S.R.

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