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Department of Astronomy

The detection of gravitational microlensing anomalies

Abstract

dc:description.abstract

The detection and measurability of microlensing anomalies including planet detection, resolved source, blending and parallax effects are investigated by way of an extensive computer simulation as a function of the observation strategy. The most efficient strategy has a planet detection probability exceeding 753 for the most favourable binary geometry, while results for typical event follow up and survey observations agree well with previous work. A complex dependence of planet detection on the resolved source radius is discovered leading to a possible increase in the probability of detecting planets with mass ratios smaller than q = 10⁻³

Degree

thesis:*
Grantor dc:publisher.institution
Department of Astronomy
Year dc:date.issued
1999

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Vermaak, Pierre le Roux
Advisors dc:contributor.advisor
  • Menzies, John
  • Warner, Brian

Rights

Language dc:language.iso
eng

Identifiers

dc:identifier.*
Handle dc:identifier.uri
http://hdl.handle.net/11427/21709
OAI identifier oai:identifier
oai:open.uct.ac.za:11427/21709

Chain of custody

source
Harvested from
University of Cape Town
Base URL
open.uct.ac.za/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
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citation

Vermaak, Pierre le Roux. The detection of gravitational microlensing anomalies. Department of Astronomy, 1999. http://hdl.handle.net/11427/21709