XTran—Transit modeling

PyA’s XTran packages bundles several transit models, which differ in purpose and implementation.

Transit light-curves

• Analytical transit model (Pal 2008)
• Analytical transit model (Mandel & Agol 2002)
• Chromospheric transit model

Rossiter McLaughlin curves

• Analytical Rossiter McLaughlin model (Ohta et al. 2005)