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Diffractive Microlensing I: Flickering Planetesimals at the Edge of the Solar System

Authors
  • Heyl, Jeeremy
Type
Preprint
Publication Date
Nov 26, 2009
Submission Date
Oct 20, 2009
Identifiers
DOI: 10.1111/j.1745-3933.2009.00795.x
Source
arXiv
License
Yellow
External links

Abstract

Microlensing and occultation are generally studied in the geometric optics limit. However, diffraction may be important when recently discovered Kuiper-Belt objects (KBOs) occult distant stars. In particular the effects of diffraction become more important as the wavelength of the observation and the distance to the KBO increase. For sufficiently distant and massive KBOs or Oort cloud objects not only is diffraction important but so is gravitational lensing. For an object similar to Eris but located in the Oort cloud, the signature of gravitational lensing would be detected easily during an occultation and would give constraints on the mass and radius of the object.

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