Gemini planet imager observational calibrations X: non-redundant masking on GPI

@inproceedings{Greenbaum2014GeminiPI,
  title={Gemini planet imager observational calibrations X: non-redundant masking on GPI},
  author={Alexandra Z. Greenbaum and Anthony Cheetham and Anand Sivaramakrishnan and Peter G. Tuthill and Barnaby R. M. Norris and Laurent Pueyo and Naru Sadakuni and Fredrik T. Rantakyr{\"o} and Pascale Hibon and Stephen J. Goodsell and Markus Hartung and Andrew W. Serio and Andrew Cardwell and Lisa Ann Poyneer and Bruce A. Macintosh and Dmitry Savransky and Marshall D. Perrin and Schuyler G. Wolff and Patrick Ingraham and Sandrine J. Thomas},
  booktitle={Astronomical Telescopes and Instrumentation},
  year={2014}
}
The Gemini Planet Imager (GPI) Extreme Adaptive Optics Coronograph contains an interferometric mode: a 10-hole non-redundant mask (NRM) in its pupil wheel. GPI operates at Y, J, H, and K bands, using an integral field unit spectrograph (IFS) to obtain spectral data at every image pixel. NRM on GPI is capable of imaging with a half resolution element inner working angle at moderate contrast, probing the region behind the coronagraphic spot. The fine features of the NRM PSF can provide a reliable… 
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We present improvements to the wavelength calibration for the lenslet-based Integral Field Spectrograph (IFS), that serves as the science instrument for the Gemini Planet Imager (GPI). The GPI IFS
Gemini Planet Imager Observational Calibration XIII: Wavelength Calibration Improvements, Stability, and Nonlinearity
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Abstract. Stellar coronagraph performance is highly sensitive to optical aberrations. In order to effectively suppress starlight for exoplanet imaging applications, low-order wavefront aberrations
Coronagraph-Integrated Wavefront Sensing with a Sparse Aperture Mask
Stellar coronagraph performance is highly sensitive to optical aberrations. In order to effectively suppress starlight for exoplanet imaging applications, low-order wavefront aberrations entering a
Performance of the Gemini Planet Imager's adaptive optics system.
TLDR
The Gemini Planet Imager's adaptive optics subsystem was designed specifically to facilitate high-contrast imaging and science observations show that image quality can be improved with the use of both the spatially filtered wavefront sensor and linear-quadratic-Gaussian control of vibration.
Application of the phase diversity to estimate the non-common path aberrations in the Gemini planet imager: results from simulation and real data
TLDR
It is found that this NCPA correction application is rudimentary and a more thorough application will be investigated in the near future, but the estimated NCPA in the form of astigmatism and coma agree well with the magnitude of the same modes reported by Poyneer et al. 2016.
Low-Order Wavefront Sensing for Future Space-Based Coronagraphic Missions with a Sparse Aperture Mask
TLDR
The work presented in this thesis would help designers pick low-order wavefront sensing and control hardware and software for future coronagraphic missions.
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The Gemini Planet Imager (GPI) Extreme Adaptive Optics Coronagraph (ExAOC) possesses a non-redundant mask (NRM) mode that is enabled by placing a 10-hole mask in the plane of the apodizer. GPI uses
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