Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-10T16:30:02.547Z Has data issue: false hasContentIssue false
  • English
  • Français

Several problems of exoplanetary orbits determination from radial velocity observations

Published online by Cambridge University Press:  01 October 2007

Roman V. Baluev
Roman V. Baluev*
Affiliation:
Sobolev Astronomical Institute, Saint Petersburg State University, Universitetskij prospekt 28, Petrodvorets, Saint Petersburg 198504, Russia. email: roman@astro.spbu.ru
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Existing algorithms of analysis of radial velocity time series are improved for the purposes of extrasolar planets detection and characterizing. Three important effects are considered: the poorly known radial velocity jitter, periodic systematic errors, and statistical bias due to non-linearity of models. Mathematical tools to account for these effects are developed and applied to a number of real planetary systems. In particular, it is shown that two outer planets of HD37124 are likely trapped in the 2/1 resonance. The dwarf star GJ876 may host an extra, Neptune-mass, planet which is in resonance with two giant planets in this system.

Keywords

methods: data analysistechniques: radial velocitiesstars: planetary systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S249: Exoplanets: Detection, Formation and Dynamics , October 2007 , pp. 101 - 110
Copyright
Copyright © International Astronomical Union 2008

References

Baluev, R. V. 2008a, Mon. Not. R. Astron. Soc., (Online Early), doi:101111/j.1365-2966.2008.12689.xGoogle Scholar
Baluev, R. V. 2008b, Mon. Not. R. Astron. Soc., submitted (arXiv/astro-ph: 0712.3862)Google Scholar
Bean, J. L., McArthur, B. E., Benedict, G. F., & Armstrong, A. 2007, Astroph. Journ., 672, 1202CrossRefGoogle Scholar
Butler, R. P., Wright, J. T., Marcy, G. W., Fischer, D. A., Vogt, S. S., Tinney, C. G., Jones, H. R. A., Carter, B. D., Johnson, J. A., McCarthy, C., & Penny, A. J. 2006, Astroph. Journ., 646, 505CrossRefGoogle Scholar
Goździewski, K., Migaszewski, C. & Musieliński, A. 2008, these proceedingsGoogle Scholar
Quenouille, M. H. 1956, Biometrika, 43, 353CrossRefGoogle Scholar
Rivera, E. J., Lissauer, J. J., Butler, R. P., Marcy, G. W., Vogt, S. S., Fischer, D. A., Brown, T. M., Laughlin, G., & Henry, G. W. 2005, Astroph. Journ., 634, 625CrossRefGoogle Scholar
Schneider, J. 2007, http://exoplanet.eu, The Extrasolar Planets EncyclopaediaGoogle Scholar
Vogt, S. S., Butler, R. P., Marcy, G. W., Fischer, D. A., Henry, G. W., Laughlin, G., Wright, J. T., & Johnson, J. A. 2005, Astroph. Journ., 632, 638CrossRefGoogle Scholar
Wittenmyer, R. A., Endl, M., & Cochran, W. D. 2007, Astroph. Journ., 654, 625CrossRefGoogle Scholar
Wright, J. T. 2005, Pub. Astr. Soc. Pacific, 117, 657CrossRefGoogle Scholar