Gemini planet imager observational calibrations III: empirical measurement methods and applications of high-resolution microlens PSFs - Archive ouverte HAL
Communication Dans Un Congrès Année : 2014

Gemini planet imager observational calibrations III: empirical measurement methods and applications of high-resolution microlens PSFs

Résumé

The newly commissioned Gemini Planet Imager (GPI) combines extreme adaptive optics, an advanced coronagraph, precision wavefront control and a lenslet-based integral field spectrograph (IFS) to measure the spectra of young extrasolar giant planets between 0.9-2.5 mum. Each GPI detector image, when in spectral model, consists of ~37,000 microspectra which are under or critically sampled in the spatial direction. This paper demonstrates how to obtain high-resolution microlens PSFs and discusses their use in enhancing the wavelength calibration, flexure compensation and spectral extraction. This method is generally applicable to any lenslet-based integral field spectrograph including proposed future instrument concepts for space missions.

Dates et versions

hal-03744016 , version 1 (02-08-2022)

Identifiants

Citer

Patrick Ingraham, Jean-Baptiste Ruffio, Marshall D. Perrin, Schuyler G. Wolff, Zachary H. Draper, et al.. Gemini planet imager observational calibrations III: empirical measurement methods and applications of high-resolution microlens PSFs. Ground-based and Airborne Instrumentation for Astronomy V, Jun 2014, Montréal, Quebec, Canada. ⟨10.1117/12.2055283⟩. ⟨hal-03744016⟩
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