JWST NIRISS/SOSS: advancements in calibration and observational tools for exoplanetary science

Tyler Baines; Néstor Espinoza; Joseph Filippazzo; Kevin Volk; Aarynn Carter

doi:10.1117/12.3020330

23 August 2024 JWST NIRISS/SOSS: advancements in calibration and observational tools for exoplanetary science

Tyler Baines, Néstor Espinoza, Joseph Filippazzo, Kevin Volk, Aarynn Carter

Author Affiliations +

Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 1309212 (2024) https://doi.org/10.1117/12.3020330
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The Near Infrared Imager and Slitless Spectrograph (NIRISS) with its Single Object Slitless Spectrograph (SOSS) mode is a key instrument of the James Webb Space Telescope (JWST). This mode is optimized for exoplanet spectroscopy and time series observations of bright stars with J-band Vega magnitudes between 7 and 15 covering a broad wavelength range from 0.6 to 2.8 µm with a moderate spectral resolution (R ≈ 700 at 1.25 µm). In this work, we showcase some of the key efforts by the NIRISS/SOSS team to mitigate some unique aspects of this instrument. These include studying and predicting trace and wavelength solution movements as a function of small, visit-to-visit pupil wheel position variations, spectral extraction with spectral overlap, dispersed zodiacal light contamination, among others. We highlight the implementation of solutions to these challenges through publicly available code, as well as its integration into the JWST Calibration Pipeline. As more SOSS mode data becomes available and the instrument calibration improves, we continuously update observational resources and tools to help users optimize their science observations. We are committed to providing the community with advanced tools, code, and data models to aid in observational planning and data reduction, ensuring robust, science-grade data products through both the JWST calibration pipeline and user-developed pipelines.

Conference Presentation

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

Citation Download Citation

Tyler Baines, Néstor Espinoza, Joseph Filippazzo, Kevin Volk, and Aarynn Carter "JWST NIRISS/SOSS: advancements in calibration and observational tools for exoplanetary science", Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 1309212 (23 August 2024); https://doi.org/10.1117/12.3020330

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