New observable for gravitational lensing effects during transits
classification
🌌 astro-ph.EP
keywords
gravitationallensingeffectsobservablebeforecurvedetectabilitydetermining
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We investigate gravitational lensing effects of an extrasolar planet transiting its host star. We focus on the `rising spikes' of the light curve just before and after the transit, which is a peculiar feature of the gravitational lensing, and find that it could be a novel observable for determining physical parameters. Detectability of such an effect is also discussed.
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