Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.2601h&link_type=abstract
American Astronomical Society, ESS meeting #2, #26.01
Astronomy and Astrophysics
Astronomy
Scientific paper
The Rossiter-McLaughlin (RM) effect is a distortion in spectral lines during a planetary transit caused by a partial occultation of the rotating stellar disk. A measurement of the RM effect reveals the relation between the orbital axis of planet and the spin axis of the planet hosting star. Although the RM effect is a promising tool to observationally distinguish among planetary migration theories, the relation between the observed anomalous radial velocity and the position of the planet has been unclear. We have recently derived a new analytic formula to describe the RM effect, and shown that the analytic formula is in good agreement with numerical simulations. As an application of our new analytic formula, we present new results of RM measurements for several selected systems and also report on the reanalysis of the previously published RM measurements using our new improved modeling. Finally, we discuss the revised statistic of the RM results.
Albrecht Simon
Hirano Teruyuki
Narita Norio
Sato Bun'ei
Shporer Abi
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