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Extrasolar planets

Light through a gravitational lens

A planet with a mass lower than that of Neptune has been detected as its gravity bent the light from a remote star. This lensing technique adds to our arsenal for spotting small planets outside the Solar System.

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Figure 1: Limits of the Doppler technique.
Figure 2: Lensing planet.


  1. Mayor, M. & Queloz, D. Nature 378, 355–359 (1995).

    ADS  CAS  Article  Google Scholar 

  2. Beaulieu, J.-P. et al. Nature 439, 437–440 (2006).

    ADS  CAS  Article  Google Scholar 

  3. Santos, N. et al. ESO Messenger 110, 32 (2002).

    ADS  Google Scholar 

  4. Rivera, E. J. et al. Astrophys. J. 634, 625–640 (2005).

    ADS  Article  Google Scholar 

  5. Santos, N. C. et al. Astron. Astrophys. 426, L19–L23 (2004).

    ADS  Article  Google Scholar 

  6. McArthur, B. E. et al. Astrophys. J. 614, L81–L84 (2004).

    ADS  Article  Google Scholar 

  7. Bonfils, X. et al. Astron. Astrophys. 443, L15–L36 (2005).

    ADS  CAS  Article  Google Scholar 

  8. Baraffe, I. et al. Astron. Astrophys. 436, L47–L52 (2005).

    ADS  Article  Google Scholar 

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Queloz, D. Light through a gravitational lens. Nature 439, 400–401 (2006).

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