New observable for gravitational lensing effects during transits

Sep, 2010
5 pages
Published in:
  • Mon.Not.Roy.Astron.Soc. 411 (2011) 1863-1868
e-Print:

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Abstract: (arXiv)
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.