Measurement of parallax and lens mass in the gravitational microlensing free floating planet event MOA-2011-BLG-274, and aspects of planet detection at moderately high magnification

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dc.contributor.advisor Yock, P en
dc.contributor.author Freeman, Matthew en
dc.date.accessioned 2013-03-08T01:55:35Z en
dc.date.issued 2013 en
dc.identifier.uri http://hdl.handle.net/2292/20181 en
dc.description Full text is available to authenticated members of The University of Auckland only. en
dc.description.abstract Microlensing is a powerful technique for detecting non-luminous objects in the galaxy. This has been one of several techniques that, in the past few years, have discovered hundreds of planets orbiting around other stars in our galaxy. The microlensing event MB11274 showed a short timescale and a large source size effect. These suggest that, rather than being a star, the lens body in this event may be a free floating planet, a class of object only recently discovered. A measurement of parallax in this event would allow the mass of this object to be measured – the first time that the mass of one of these planets has been measured directly. In this thesis an attempt to measure the terrestrial parallax signal in the event is described. Searches are also made for a nearby star, and any moons orbiting the planet. In addition, microlensing surveys looking for planets usually focus on the highest magnification events, as it is assumed that they give the best chance of detection. This thesis also presents analysis of moderate magnification microlensing events, which suggests that this type of event provides a higher sensitivity to planets. en
dc.publisher ResearchSpace@Auckland en
dc.relation.ispartof Masters Thesis - University of Auckland en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights Restricted Item. Available to authenticated members of The University of Auckland. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/3.0/nz/ en
dc.title Measurement of parallax and lens mass in the gravitational microlensing free floating planet event MOA-2011-BLG-274, and aspects of planet detection at moderately high magnification en
dc.type Thesis en
thesis.degree.grantor The University of Auckland en
thesis.degree.level Masters en
dc.rights.holder Copyright: The Author en
pubs.elements-id 374233 en
pubs.record-created-at-source-date 2013-03-08 en


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