Web platform for calculations of SNR and exposure time with Specsim for TMT-MODHIS and Keck-HISPEC

Huihao Zhang; Ashley Baker; Dimitri Mawet; Jean-Baptiste Ruffio; Jason Wang; Maxwell Millar-Blanchaer; Quinn Konopacky; Michael Fitzgerald; Samuel Halverson; Aidan Gibbs; Connor Vancil; Sofia Hillman; Greg Sercel; Daniel Echeverri

doi:10.1117/12.3017867

19 July 2024 Web platform for calculations of SNR and exposure time with Specsim for TMT-MODHIS and Keck-HISPEC

Huihao Zhang, Ashley Baker, Dimitri Mawet, Jean-Baptiste Ruffio, Jason Wang, Maxwell Millar-Blanchaer, Quinn Konopacky, Michael Fitzgerald, Samuel Halverson, Aidan Gibbs, Connor Vancil, Sofia Hillman, Greg Sercel, Daniel Echeverri

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 1309650 (2024) https://doi.org/10.1117/12.3017867
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Specsim is a Python package for simulating spectroscopic observations with TMT-MODHIS and Keck-HISPEC, which are both high-resolution (R~100,000) diffraction-limited spectrographs each covering y, J, H, and K bands simultaneously. The simulators compute the total number of photons arriving at the detector per second and the noise level as well as the associated photon-limited radial velocity precision per order and cross-correlation function signal-to-noise ratio (SNR). A web platform for Specsim is in development to serve the broader community. The platform aims to provide users of TMT-MODHIS and Keck-HISPEC an exposure time calculator and simulated spectra for planning observations with the instruments across varied observing scenarios and science cases.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Huihao Zhang, Ashley Baker, Dimitri Mawet, Jean-Baptiste Ruffio, Jason Wang, Maxwell Millar-Blanchaer, Quinn Konopacky, Michael Fitzgerald, Samuel Halverson, Aidan Gibbs, Connor Vancil, Sofia Hillman, Greg Sercel, and Daniel Echeverri "Web platform for calculations of SNR and exposure time with Specsim for TMT-MODHIS and Keck-HISPEC", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 1309650 (19 July 2024); https://doi.org/10.1117/12.3017867

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