Preserving the photometric integrity of companions in high-contrast imaging observations using locally optimized combination of images

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DOIResolve DOI: http://doi.org/10.1117/12.926247
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TypeArticle
Proceedings titleSPIE - International Society for Optical Engineering. Proceedings
ConferenceAdaptive Optics Systems III, 1 July 2012 through 6 July 2012, Amsterdam
ISSN0277-786X
ISBN9780819491480
Volume8447
Article number844760
SubjectDirect imaging; Exo-planets; Extra solar planets; High contrast imaging; Planet formation; Speckle suppression; Techniques; Data processing; Image processing; Optimization; Photometry
AbstractDirect imaging and spectroscopy can advance our understanding of planet formation and migration through the detection and characterization of extrasolar planets on wide orbits. Accurate photometry and astrometry of detected companions are of crucial importance to derive the planet physical properties.We present an extension of the Locally optimized combination of images (LOCI) method to measure the highest-fidelity photometry as well as accurate astrometry of detected companions. This algorithm is also generalized to Integral-Field Spectrograph (IFS) data processing, giving advantages of a simultaneous angular and spectral differential imaging reduction, retrieving high-fidelity spectra from PSF-subtracted cubes. © 2012 SPIE.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Herzberg Institute of Astrophysics (HIA-IHA)
Peer reviewedYes
NPARC number21269420
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Record identifierc6a10c83-9739-4280-baa9-023882980e2b
Record created2013-12-12
Record modified2017-04-24
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