References & Sources  -  September 26, 1998

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A dozen new planets . . . and still counting

Astronomers have discovered two new planets orbiting sunlike stars, and another team has found graphic evidence that another sunlike star hosts a complete planetary system.

 

References:

Butler, R.P. 1998. Weekly Colloquium Lecture. Carnegie Institution of Washington. September. Washington, D.C.

Additional information about the planetary findings is available at the Extrasolar Planets Encyclopaedia Web site at http://wwwusr.obspm.fr/departement/darc/planets/encycl.html.

 

Further Readings:

Butler, R.P., G.W. Marcy, et al. In press. A planet with a 3.1 day period around a solar twin. Publications of the Astronomical Society of the Pacific.

Cowen, R. 1998. Exploring new worlds. Science News 154(Aug. 8):88.

 

Sources:

R. Paul Butler
Anglo-Australian Observatory
P.O. Box 296
NSW 1710 Epping
Australia

Michael Jura
University of California, Los Angeles
Division of Astronomy
Los Angeles, CA 90095-1562

David E. Trilling
University of Arizona
Department of Planetary Sciences
P.O. Box 210092
Tucson, AZ 85721-0092

From Science News, Vol. 154, No. 13, September 26, 1998, p. 197.
Copyright Ó 1998 by Science Service.

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