Modeling giant extrasolar ring systems in eclipse and the case of J1407b: sculpting by exomoons?

  title={Modeling giant extrasolar ring systems in eclipse and the case of J1407b: sculpting by exomoons?},
  author={Matthew A. Kenworthy and Eric E. Mamajek},
  journal={arXiv: Solar and Stellar Astrophysics},
The light curve of 1SWASP J140747.93-394542.6, a $\sim$16 Myr old star in the Sco-Cen OB association, underwent a complex series of deep eclipses that lasted 56 days, centered on April 2007. This light curve is interpreted as the transit of a giant ring system that is filling up a fraction of the Hill sphere of an unseen secondary companion, J1407b. We fit the light curve with a model of an azimuthally symmetric ring system, including spatial scales down to the temporal limit set by the star's… Expand

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