29 July 2016 The JWST/NIRSpec exoplanet exposure time calculator
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Abstract
The James Webb Space Telescope (JWST), with its unprecedented sensitivity, will provide a unique set of tools for the study of transiting exoplanets and their atmospheres. The Near Infrared Spectrograph (NIRSpec) is one of four scientific instruments on JWST and offers a high-contrast aperture-spectroscopy mode developed specifically for exoplanet observations. Here we present the NIRSpec Exoplanet Exposure Time Calculator (NEETC) software, an exposure time calculator optimized to evaluate the signal-to-noise ratio and simulate spectra for observations of transiting exoplanets. The NEETC is being developed to help the NIRSpec instrument team, and ultimately future JWST users, to fully investigate NIRSpec’s observation modes and the feasibility of exoplanet observations. We give examples of how the NEETC can be used to prepare observations, and present results highlighting the capabilities and limitations of NIRSpec.
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Louise Dyregaard Nielsen, Louise Dyregaard Nielsen, Pierre Ferruit, Pierre Ferruit, Giovanna Giardino, Giovanna Giardino, Stephan Birkmann, Stephan Birkmann, Antonio García Muñoz, Antonio García Muñoz, Jeff Valenti, Jeff Valenti, Kate Isaak, Kate Isaak, Catarina Alves de Oliveira, Catarina Alves de Oliveira, Torsten Böker, Torsten Böker, Nora Lützgendorf, Nora Lützgendorf, Timothy Rawle, Timothy Rawle, Marco Sirianni, Marco Sirianni, } "The JWST/NIRSpec exoplanet exposure time calculator", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99043O (29 July 2016); doi: 10.1117/12.2231624; https://doi.org/10.1117/12.2231624
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