The JWST/NIRSpec exoplanet exposure time calculator

Louise Dyregaard Nielsen; Pierre Ferruit; Giovanna Giardino; Stephan Birkmann; Antonio García Muñoz; Jeff Valenti; Kate Isaak; Catarina Alves de Oliveira; Torsten Böker; Nora Lützgendorf; Timothy Rawle; Marco Sirianni

doi:10.1117/12.2231624

29 July 2016 The JWST/NIRSpec exoplanet exposure time calculator

Louise Dyregaard Nielsen, Pierre Ferruit, Giovanna Giardino, Stephan Birkmann, Antonio García Muñoz, Jeff Valenti, Kate Isaak, Catarina Alves de Oliveira, Torsten Böker, Nora Lützgendorf, Timothy Rawle, Marco Sirianni

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Proceedings Volume 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave; 99043O (2016) https://doi.org/10.1117/12.2231624
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

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, Pierre Ferruit, Giovanna Giardino, Stephan Birkmann, Antonio García Muñoz, Jeff Valenti, Kate Isaak, Catarina Alves de Oliveira, Torsten Böker, Nora Lützgendorf, Timothy Rawle, and 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); https://doi.org/10.1117/12.2231624

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