| Michel Mayor, Didier Queloz, St'ephane Udry (2007) | |||||||||||||||
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| : The burst of discoveries of planets and brown dwarfs during the past year has revealed an unexpected diversity of planetary systems. 51 Pegasi, the first extrasolar planet detected in orbit around a solar--type star appears to be the prototype of a new family of Jovian planets, the "Hot Jupiters". Though the physical mechanisms underlying the orbital decay of protoplanets are already understood, we are far from having a general view of planetary formation and of the diversity of planetary systems. If the orbital decay of protoplanets is sometimes so efficient, what is the frequency of planetary systems like ours, what is the frequency of telluric planets, what is the limit between planets and brown dwarfs? 1) 51 Pegasi, the first extrasolar planet: prototype of "Hot Jupiter"--type planets Didier Queloz and myself (MM) have started rather recently in the existing domain of extrasolar research, in April 1994. We entered the club of planet hunters quite late compared to the already "ac... | |||||||||||||||
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