Probing the effect of gravitational microlensing on the measurements of the Rossiter-McLaughlin effect

Abstract

In general, in the studies of transit light-curves and the Rossiter-McLaughlin (RM), the contribution of the planet's gravitational microlensing is neglected. Theoretical studies, have, however shown that the planet's microlensing can affect the transit light-curve and in some extreme cases cause the transit depth to vanish. In this letter, we present the results of our quantitative analysis of microlening on the RM effect. Results indicate that for massive planets in on long period orbits, the planet's microlensing will have considerable contribution to the star's RV measurements. We present the details of our study, and discuss our analysis and results.

6 pages, 3 figures, accepted for publication in Astronomy & Astrophysics

References in corpus (4)

• Obliquities of Hot Jupiter host stars: Evidence for tidal interactions and primordial misalignments
• Misaligned spin-orbit in the XO-3 planetary system?
• On the Spin-Orbit Misalignment of the XO-3 Exoplanetary System
• Characterizing the Cool KOIs. V. KOI-256: A Mutually Eclipsing Post-Common Envelope Binary

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