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Planets in Binary Star Systems (Paperback, 2010 ed.)
Loot Price: R4,241
Discovery Miles 42 410
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Planets in Binary Star Systems (Paperback, 2010 ed.)
Series: Astrophysics and Space Science Library, 366
Expected to ship within 10 - 15 working days
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In 1988, in an article on the analysis of the measurements of the
variations in the radial velocities of a number of stars, Campbell,
Walker, and Yang reported an - teresting phenomenon;the radial
velocity variations of Cephei seemed to suggest the existence of a
Jupiter-like planet around this star. This was a very exciting and,
at the same time, very surprising discovery. It was exciting
because if true, it would have marked the detection of the ?rst
planet outside of our solar system. It was surprising because the
planet-hosting star is the primary of a binary system with a
separation less than 19 AU, a distance comparable to the planetary
distances in our solar system. The moderatelyclose orbit of the
stellar companionof Cephei raised questions about the reality of
its planet. The skepticism over the interpretation of the results
(which was primarily based on the idea that binary star systems
with small sepa- tions would not be favorable places for planet
formation) became so strong that in a subsequent paper in 1992,
Walker and his colleagues suggested that the planet in the Cephei
binary might not be real, and the variations in the radial velocity
of this star might have been due to its chromospheric activities.
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