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Keith Horne: Extra-solar planets

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1995 First Doppler Wobble Planet:<br />

51 Peg<br />

Discovered by accident:<br />

Mayor & Queloz (1995)<br />

Quickly confirmed:<br />

Marcy & Butler (1995)<br />

P = 4.2 days (!)<br />

a = 0.05 AU<br />

T ~2000K<br />

m sin(i) = 0.5 m J<br />

New class of planet:<br />

“Hot Jupiter”

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