The Infrared Imaging Spectrograph (IRIS) for TMT: final design development of the data reduction system

Arun Surya; Andrea Zonca; Nils-Erik Rundquist; Shelley A. Wright; Gregory L. Walth; David R. Anderson; Edward L. Chapin; Eric M. Chisholm; Tuan Do; Jennifer S. Dunn; Kim Gillies; Yutaka Hayano; Christopher A. Johnson; Renate Kupke; James E. Larkin; Takashi Nakamoto; Reed Riddle; Roger Smith; Ryuji Suzuki; Ji Man Sohn; Robert Weber; Jason L. Weiss; Kai Zhang

doi:10.1117/12.2561766

17 December 2020 The Infrared Imaging Spectrograph (IRIS) for TMT: final design development of the data reduction system

Arun Surya, Andrea Zonca, Nils-Erik Rundquist, Shelley A. Wright, Gregory L. Walth, David R. Anderson, Edward L. Chapin, Eric M. Chisholm, Tuan Do, Jennifer S. Dunn, Kim Gillies, Yutaka Hayano, Christopher A. Johnson, Renate Kupke, James E. Larkin, Takashi Nakamoto, Reed Riddle, Roger Smith, Ryuji Suzuki, Ji Man Sohn, Robert Weber, Jason L. Weiss, Kai Zhang

Author Affiliations +

Proceedings Volume 11452, Software and Cyberinfrastructure for Astronomy VI; 114521K (2020) https://doi.org/10.1117/12.2561766
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

IRIS (Infrared Imaging Spectrograph) is the near-infrared (0.84 to 2.4 micron) diffraction-limited imager and Integral Field Spectrograph (IFS) designed for the Thirty Meter Telescope (TMT) and the Narrow-Field Infrared Adaptive Optics System ( NFIRAOS ). The imager will have a 34 arcsec x 34 arcsec field of view with 4 milliarcseconds (mas) pixels. The IFS consists of a lenslet array and slicer, enabling four plate scales from 4 mas to 50 mas, with multiple gratings and filters. We will report the progress on the development of the IRIS Data Reduction System ( DRS ) in the final design phase. The IRIS DRS is being developed in Python with the software architecture based on the James Webb Space Telescope science calibration pipeline. We are developing a library of algorithms as individual Python classes that can be configured independently and bundled into pipelines. We will interface this with the observatory software to run online during observations and we will release the package publicly for scientists to develop custom analyses. It also includes a C library for readout processing to be used for both in real-time processing (e.g., up-the-ramp, MCDS) as well the ability for astronomers to use for offline reduction. Lastly, we will also discuss the development of the IRIS simulation packages that simulate raw spectra and image readout-data from the Hawaii-4RG detectors, which helps in developing reduction algorithms during this design phase.

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Arun Surya, Andrea Zonca, Nils-Erik Rundquist, Shelley A. Wright, Gregory L. Walth, David R. Anderson, Edward L. Chapin, Eric M. Chisholm, Tuan Do, Jennifer S. Dunn, Kim Gillies, Yutaka Hayano, Christopher A. Johnson, Renate Kupke, James E. Larkin, Takashi Nakamoto, Reed Riddle, Roger Smith, Ryuji Suzuki, Ji Man Sohn, Robert Weber, Jason L. Weiss, and Kai Zhang "The Infrared Imaging Spectrograph (IRIS) for TMT: final design development of the data reduction system", Proc. SPIE 11452, Software and Cyberinfrastructure for Astronomy VI, 114521K (17 December 2020); https://doi.org/10.1117/12.2561766

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