The WFIRST Galaxy Survey Exposure Time Calculator

Christopher M. Hirata; Neil Gehrels; Jean-Paul Kneib; Jeffrey Kruk; Jason Rhodes; Yun Wang; Julien Zoubian

The WFIRST Galaxy Survey Exposure Time Calculator

Instrumentation and Methods for Astrophysics 2012-04-24 v1

Authors: Christopher M. Hirata , Neil Gehrels , Jean-Paul Kneib , Jeffrey Kruk , Jason Rhodes , Yun Wang , Julien Zoubian

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Abstract

This document describes the exposure time calculator for the Wide-Field Infrared Survey Telescope (WFIRST) high-latitude survey. The calculator works in both imaging and spectroscopic modes. In addition to the standard ETC functions (e.g. background and S/N determination), the calculator integrates over the galaxy population and forecasts the density and redshift distribution of galaxy shapes usable for weak lensing (in imaging mode) and the detected emission lines (in spectroscopic mode). The source code is made available for public use.

Keywords

astronomical instrumentation and telescopes

Cite

@article{arxiv.1204.5151,
  title  = {The WFIRST Galaxy Survey Exposure Time Calculator},
  author = {Christopher M. Hirata and Neil Gehrels and Jean-Paul Kneib and Jeffrey Kruk and Jason Rhodes and Yun Wang and Julien Zoubian},
  journal= {arXiv preprint arXiv:1204.5151},
  year   = {2012}
}

Comments

44 pages. The current C source code and version history can be found at http://www.tapir.caltech.edu/~chirata/web/software/space-etc/ ; IPAC maintains a web interface at http://wfirst-web.ipac.caltech.edu/wfDepc/wfDepc.jsp

The WFIRST Galaxy Survey Exposure Time Calculator

Abstract

Keywords

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