Three planets for Upsilon Andromedae (original) (raw)

Nature volume 398, page 659 (1999)Cite this article

In 1997, a planet of roughly Jupiter's mass was discovered in orbit around the star Andromedae. Two more have now been identified.

In the 1990s, the quest to find planets outside our own Solar System finally succeeded. The first extrasolar planets to be identified are in orbit around a pulsar1, a rapidly rotating neutron star which is quite different from our own familiar Sun. The first planetary companion to a main-sequence star — a hydrogen-burning star like the Sun — was discovered in 1995, using Doppler measurements of the reflex motion (wobble) that the planet's orbit induces in the star 51 Pegasi2. Nearly 20 more main-sequence stars have since been found to possess a single companion of roughly Jupiter mass[3](/articles/19409#ref-CR3 "Marcy, G. W. & Butler, R. P. Annu. Rev. Astron. Astrophys. 36, 57–97 (1998); http://www.physics.sfsu.edu/∼gmarcy/planetsearch/planetsearch.html

            "). But now we have news of something else again — the discovery, announced last week by Paul Butler and his colleagues[4](/articles/19409#ref-CR4 "Butler, R. P.  et al. Astrophys. J.(submitted); 
              http://www.physics.sfsu.edu/∼gmarcy/planetsearch/upsand/upsand.html
              
            ; 
              http://www.harvard.edu/afoe/
              
            "), of a system of three massive planets orbiting the star Andromedae.

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Figure 1: The reported orbital parameters for the planets around Andromedae[4](/articles/19409#ref-CR4 "Butler, R. P. et al. Astrophys. J.(submitted); http://www.physics.sfsu.edu/∼gmarcy/planetsearch/upsand/upsand.html

; http://www.harvard.edu/afoe/

") are given on.

References

  1. Wolszczan, A. & Frail, D. A. Nature 355, 145–147 (1992).
    Article ADS Google Scholar
  2. Mayor, M. & Queloz, D. Nature 378 355–359 (1995).
    Article ADS CAS Google Scholar
  3. Marcy, G. W. & Butler, R. P. Annu. Rev. Astron. Astrophys. 36, 57–97 (1998); http://www.physics.sfsu.edu/∼gmarcy/planetsearch/planetsearch.html
    Google Scholar
  4. Butler, R. P. et al. Astrophys. J.(submitted); http://www.physics.sfsu.edu/∼gmarcy/planetsearch/upsand/upsand.html; http://www.harvard.edu/afoe/
  5. Butler, R. P., Marcy, G. W., Williams, E., Hauser, H. & Shirts, P. Astrophys. J. 474, L115–L118 (1997).
    Google Scholar
  6. Wuchterl, G., Guillot, T. & Lissauer, J. J. Protostars and Planets IV (eds Mannings, V., Russel, S. & Boss, A. P.) (Univ. Arizona Press, Tucson, in the press).
  7. http://www.kepler.arc.nasa.gov/; http://ast.star.rl.ac.uk:80/darwin/
  8. Levison, H. F. & Duncan, M. J. Icarus 108, 18–29 (1994).
    Google Scholar

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  1. Space Science Division, NASA Ames Research Center, Moffett Field, 94035, California, USA
    Jack J. Lissauer

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Lissauer, J. Three planets for Upsilon Andromedae.Nature 398, 659 (1999). https://doi.org/10.1038/19409

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