Match the following planetary light curves to their caustics and trajectories.

  • In each light curve identify any caustic entrances and exits and look for cusp approaches.
  • Also consider when the perturbation occurs: When is the peak of the underlying stellar event? Does the planetary perturbation occur before or after the peak?
  • Finally, consider the location of the caustic and source trajectory: Where is the closest approach between the source and lens (where is the source closest to 0,0)? Where is the caustic in relation to this?
1 2 3 4 5
Lightcurve 1
Lightcurve 1 [Y.C. Yee]
Lightcurve 2
Lightcurve 2 [Y.C. Yee]
Lightcurve 3
Lightcurve 3 [Y.C. Yee]
Lightcurve 4
Lightcurve 4 [Y.C. Yee]
Lightcurve 5
Lightcurve 5 [Y.C. Yee]
A B C D E
Caustic A
Caustic A [Y.C. Yee]
Caustic B
Caustic B [Y.C. Yee]
Caustic C
Caustic C [Y.C. Yee]
Caustic D
Caustic D [Y.C. Yee]
Caustic E
Caustic E [Y.C. Yee]