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Simulation Of Microlensing Lightcurves By Combining Contouring And Rayshooting

Published online by Cambridge University Press:  25 May 2016

Stein Vidar Hagfors Haugan
Stein Vidar Hagfors Haugan*
Affiliation:
Institute of Theoretical Astrophysics, University of Oslo, Pb. 1029, Blindern, N-0315 OSLO http://www.uio.no/~steinhh/index.html

Extract

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The contouring methods described by Lewis et al. (1993) and Witt (1993) are very efficient for obtaining the magnification of a point source moving along a straight track in the source plane. For finite sources, however, the amplification must be computed for numerous parallel tracks and then convolved with the source profile. Rayshooting, on the other hand, is an efficient algorithm for relatively large sources, but the computing time increases with the inverse of the source area for a given noise level.

Type
Chapter 8: Quasar Structure & Microlensing
Information
Symposium - International Astronomical Union , Volume 173: Astrophysical Applications of Gravitational Lensing , 1996 , pp. 275 - 276
Copyright
Copyright © Kluwer 1996 

References

Lewis, G. F., Miralda-Escude, J., Richardson, D. C., Wambsganss, J., 1993, MNRAS, 261, 647 Google Scholar
Witt, H. J. 1993, ApJ, 403, 530 Google Scholar