TWO UPPER LIMITS ON THE ROSSITER-MCLAUGHLIN EFFECT, WITH DIFFERING IMPLICATIONS: WASP-1 HAS A HIGH OBLIQUITY AND WASP-2 IS INDETERMINATE
نویسندگان
چکیده
منابع مشابه
Two Upper Limits on the Rossiter-mclaughlin Effect, with Differing Implications: Wasp-1 Has a High Obliquity and Wasp-2 Is Indeterminate
We present precise radial-velocity measurements of WASP-1 and WASP-2 throughout transits of their giant planets. Our goal was to detect the Rossiter-McLaughlin (RM) effect, the anomalous radial velocity observed during eclipses of rotating stars, which can be used to study the obliquities of planethosting stars. For WASP-1 a weak signal of a prograde orbit was detected with ≈2σ confidence, and ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2011
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/738/1/50