New observable for gravitational lensing effects during transits

Details New observable for gravitational lensing effects during transits New observable for gravitational lensing effects during transits

2010-09-11

arxiv.org/abs/1009.2129v2

MNRAS 411, 1863-1868 (2011)

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

5 pages, 16 figures, published in MNRAS

Scientific paper

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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