A Data Cube Extraction Pipeline for a Coronagraphic Integral Field Spectrograph

Abstract

Project 1640 is a high contrast near-infrared instrument probing the vicinities of nearby stars through the unique combination of an integral field spectrograph with a Lyot coronagraph and a high-order adaptive optics system. The extraordinary data reduction demands, similar those which several new exoplanet imaging instruments will face in the near future, have been met by the novel software algorithms described herein. The Project 1640 Data Cube Extraction Pipeline (PCXP) automates the translation of 3.8*10^4 closely packed, coarsely sampled spectra to a data cube. We implement a robust empirical model of the spectrograph focal plane geometry to register the detector image at sub-pixel precision, and map the cube extraction. We demonstrate our ability to accurately retrieve source spectra based on an observation of Saturn's moon Titan.

35 pages, 15 figures; accepted for publication in PASP

References in corpus (8)

• A New High Contrast Imaging Program at Palomar Observatory
• Temporal Evolution of Coronagraphic Dynamic Range, and Constraints on Companions to Vega
• Very high contrast IFU spectroscopy of AB Doradus C: 9 mag contrast at 0.2" without a coronagraph using spectral deconvolution
• Speckle Suppression with the Project 1640 Integral Field Spectrograph
• First High-Contrast Science with an Integral Field Spectrograph: the Sub-Stellar Companion to GQ Lup
• Estimates of the Planet Yield from Ground-Based High-Contrast Imaging Observations as a Function of Stellar Mass
• The Lyot Project Direct Imaging Survey of Substellar Companions: Statistical Analysis and Information from Nondetections
• Integral field spectroscopy of L 449-1 -- A test case for spectral differential imaging with SINFONI

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