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The advantages of using a Lucky Imaging camera for observations of microlensing events

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Dominik_2016_LuckyImaging_MNRAS_FinalPubVersion.pdf (2.161Mb)
Date
21/05/2016
Author
Sajadian, Sedighe
Rahvar, Sohrab
Dominik, Martin
Hundertmark, Markus
Funder
The Royal Society
Grant ID
UF100010 / UF130581
Keywords
Gravitational lensing: micro
Instrumentation: high angular resolution
Methods: numerical
Planets and satellites: detection
QC Physics
QB Astronomy
NDAS
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Abstract
In this work, we study the advantages of using a Lucky Imaging camera for the observations of potential planetary microlensing events. Our aimis to reduce the blending effect and enhance exoplanet signals in binary lensing systems composed of an exoplanet and the corresponding parent star. We simulate planetary microlensing light curves based on present microlensing surveys and follow-up telescopes where one of them is equipped with a Lucky imaging camera. This camera is used at the Danish1.54-m follow-up telescope. Using a specific observational strategy, Foran Earth-mass planet in the resonance regime, where the detection probability in crowded-fields is smaller, lucky imaging observations improve the detection efficiency which reaches 2 per cent. Given the difficulty of detecting the signal of an Earth-mass planet incrowded-field imaging even in the resonance regime with conventional cameras, we show that Lucky Imaging can substantially improve the detection efficiency.
Citation
Sajadian , S , Rahvar , S , Dominik , M & Hundertmark , M 2016 , ' The advantages of using a Lucky Imaging camera for observations of microlensing events ' , Monthly Notices of the Royal Astronomical Society , vol. 458 , pp. 3248-3259 . https://doi.org/10.1093/mnras/stw526
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/stw526
ISSN
0035-8711
Type
Journal article
Rights
© 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at: https://dx.doi.org/10.1093/mnras/stw526
Description
Works by SS and SR were supported by the grant 94017434 from the Iran National Science Foundation (INSF).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8585

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