Encyclopedia of Astrobiology

2015 Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James (Jim) CleavesII, Daniele L. Pinti, José Cernicharo Quintanilla, Daniel Rouan, Tilman Spohn, Stéphane Tirard, Michel Viso

Circumprimary Planet

Reference work entry
First Online:
DOI: https://doi.org/10.1007/978-3-662-44185-5_5286
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Definition

From a dynamical point of view, three types of orbits are recognized for the motion of a planet in a binary star system. These orbits have been historically labeled as:
  1. 1.

    The S-type (or satellite-type) orbit where the planet revolves around one of the stars of the binary (see circumprimary planet)

     
  2. 2.

    The P-type (or planetary-type) orbit where the planet revolves around the entire binary system (circumbinary orbit)

     
  3. 3.

    The L-type (or libration-type) where the planet moves in the same orbit as the secondary star, but 60 ° ahead or behind it

     
Figure 1 shows a circumprimary (S-type) orbit. In general, the planet and the binary revolve around their common center of mass. However, it is customary to consider the primary star to be stationary, and both the secondary and planet rotate around it.
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References and Further Reading

  1. Correia ACM, Udry S, Mayor M et al (2008) Astron Astrophys 479:271CrossRefADSGoogle Scholar
  2. Dumusque X, Pepe F, Lovis C et al (2012) Nature 491:207CrossRefADSGoogle Scholar
  3. Eggenberger A, Udry S, Mayor M (2003) In: Deming D, Seager S (eds) Scientific frontiers in research on extrasolar planets, vol 294, ASP Conf. Ser. ASP, San Francisco, p 43Google Scholar
  4. Endl M, Cochran WD, Hatzes AP, Wittenmyer RA (2011) In: Schuh S, Drechsel H, Heber U (eds) Planetary systems beyond the main sequence, vol 1331, AIP Conf. Proc. AIP, Melville, p 88Google Scholar
  5. Haghighipour N, Dvorak R, Pilat-Lohinger E (2010) In: Haghighipour N (ed) Planets in binary star systems. Springer, New York, p 539CrossRefGoogle Scholar
  6. Hatzes AP (2013) Astrophys J 770:133CrossRefADSGoogle Scholar
  7. Kaltenegger L, Haghighipour N (2013) Astrophys J 777, 165CrossRefADSGoogle Scholar
  8. Muterspaugh MW, Lane BF, Kulkarni SR et al (2010) Astron J 140:1657CrossRefADSGoogle Scholar
  9. Queloz D, Mayor M, Weber L et al (2000) Astron Astrophys 354:99ADSGoogle Scholar
  10. Zucker S, Mazeh T, Santos NC, Udry S, Mayor M (2004) Astron Astrophys 426:695CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Institute for AstronomyUniversity of Hawaii-ManoaHonolulu, HawaiiUSA