DOI QR코드

DOI QR Code

CLOSE-IN STELLAR COMPANIONS IN CLOSE BINARY STARS

  • LIAO, FIRST M. WENPING (Yunnan Observatories, Chinese Academy of Sciences) ;
  • QIAN, SHENGBANG (Yunnan Observatories, Chinese Academy of Sciences) ;
  • ZHU, LIYING (Yunnan Observatories, Chinese Academy of Sciences) ;
  • LIU, LIANG (Yunnan Observatories, Chinese Academy of Sciences)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30

Abstract

Close binary stars are so close that one component has an effect on the evolution of the other. But how do they form and evolve? This is an unsolved problem. One speculation is that the binary is a part of a hierarchical triple and its orbit shrinks due to interaction with the third component. Therefore, searching for and investigating tertiary components, especially close-in ones, in close binary stars are important for understanding their origin, as well as to test theories of star formation and stellar dynamical interaction.

Keywords

References

  1. Carter, J. A., Fabrycky, D. C., & Ragozzine, D., et al., 2011, KOI-126: A Triply Eclipsing Hierarchical Triple with Two Low-Mass Stars, Science, 331, 562 https://doi.org/10.1126/science.1201274
  2. Derekas, A., Kiss, L., & Kazarovets, E. V. et al., 2011, HD 181068: A Red Giant in a Triply Eclipsing Compact Hi-erarchical Triple System, Science, 332, 216 https://doi.org/10.1126/science.1201762
  3. Blattler, E., & Diethelm, R., 2002, CCD Light Curves of ROTSE1 Variables, Xv: GSC 2040:1361 CrB, ROTSE1 GSC 2579:1125 CrB, GSC 2035:175 Ser and GSC 2580:2086 CrB, IBVS, 5295
  4. Kazarovets, E. V., Samus, N. N., Durlevich, O. V., Kireeva, N. N., & Pastukhova, E. N., 2006, The 78th Name-List of Variable Stars, IBVS, 5721
  5. Rucinski, S. M., Lu, W., & Capobianco, C. C., et al., 2002, Radial Velocity Studies of Close Binary Stars. VI., AJ, 124, 1738 https://doi.org/10.1086/342341
  6. D'Angelo, C., van Kerkwijk, M. H., & Rucinski, S. M., 2006, Contact Binaries with Additional Components. II. A Spec-troscopic Search for Faint Tertiaries, AJ, 132, 650 https://doi.org/10.1086/505265
  7. Kozai, Y. 1962, Secular Perturbations of Asteroids with High Inclination and Eccentricity, AJ, 67, 591 https://doi.org/10.1086/108790