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Proceedings Paper

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

Direct 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.

Paper Details

Date Published: 13 September 2012
PDF: 14 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 844760 (13 September 2012); doi: 10.1117/12.926247
Show Author Affiliations
Jérôme Maire, Dunlap Institute for Astronomy and Astrophysics, Univ. of Toronto (Canada)
Jonathan Gagné, Univ. de Montréal (Canada)
David Lafrenière, Univ. de Montréal (Canada)
René Doyon, Univ. de Montréal (Canada)
James R. Graham, Dunlap Institute for Astronomy and Astrophysics, Univ. of Toronto (Canada)
Jean-Pierre Véran, NRC Herzberg Institute of Astrophysics (Canada)
Lisa A. Poyneer, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)

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