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Related papers: JWST MIRI flight performance: Detector Effects and…

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We describe how the James Webb Space Telescope (JWST) Near-Infrared Spectrograph's (NIRSpec's) detectors will be read out, and present a model of how noise scales with the number of multiple non-destructive reads sampling-up-the-ramp. We…

Astrophysics · Physics 2019-08-19 Bernard J. Rauscher , Ori Fox , Pierre Ferruit

We describe the data reduction algorithms for the Multiband Imaging Photometer for Spitzer (MIPS) instrument. These algorithms were based on extensive preflight testing and modeling of the Si:As (24 micron) and Ge:Ga (70 and 160 micron)…

We have calibrated the 6.5 m James Webb Space Telescope (JWST) mid-infrared filters as star formation rate indicators, using JWST photometry synthesized from $Spitzer$ spectra of 49 low redshift galaxies, which cover a wider luminosity…

Astrophysics of Galaxies · Physics 2018-12-26 Madhooshi R. Senarath , Michael J. I. Brown , Michelle E. Cluver , John Moustakas , Lee Armus , T. H. Jarrett

The James Webb Space Telescope (JWST) is predicted to make great advances in the field of exoplanet atmospheres. Its 25 m2 mirror means that it can reach unprecedented levels of precision in observations of transit spectra, and can thus…

Earth and Planetary Astrophysics · Physics 2015-02-10 Joanna K. Barstow , Suzanne Aigrain , Patrick G. J. Irwin , Sarah Kendrew , Leigh N. Fletcher

The Near-Infrared Spectrograph (NIRSpec) is one of four science instruments on board the James Webb Space Telescope (JWST), which began routine operations in July 2022. As JWST's primary spectroscopic instrument for faint, distant targets,…

Instrumentation and Methods for Astrophysics · Physics 2025-08-20 Katie Bechtold , Torsten Böker , David E. Franz , Dennis Garland , Maurice te Plate , Timothy D. Rawle , Christopher Q. Trinh , Rai Wu , Peter Zeidler

We present a large spectroscopic survey with \textit{JWST}'s Mid-Infrared Instrument (MIRI) Low Resolution Spectrometer (LRS) targeting $37$ infrared-bright galaxies between $z=0.65-2.46$ with infrared luminosities $\log L_{\rm…

The Medium Resolution Spectrometer on board JWST/MIRI will give access to mid-IR spectra while retaining spatial information. With the unparalleled sensitivity of JWST and the MIRI detectors, the MRS has the potential to revolutionise our…

Earth and Planetary Astrophysics · Physics 2022-02-02 P. Patapis , E. Nasedkin , G. Cugno , A. M. Glauser , I. Argyriou , N. P. Whiteford , P. Mollière , A. Glasse , S. P. Quanz

We observed a full-orbit phase curve of the hot Jupiter WASP-43b with MIRI/LRS as part of the Transiting Exoplanet Community Early Release Science Program. Here we report preliminary findings for the instrument performance from the team's…

Instrumentation and Methods for Astrophysics · Physics 2023-01-18 Taylor J. Bell , Laura Kreidberg , Sarah Kendrew , Jacob Bean , Nicolas Crouzet , Elsa Ducrot , Achrène Dyrek , Peter Gao , Pierre-Olivier Lagage , Julianne I. Moses

As part of the JWST GTO program MINDS, we analyze the mid-infrared emission of three Class II binary systems: VW Cha, WX Cha, and RW Aur, to investigate the impact of stellar multiplicity on the chemistry and physics of their inner disk. We…

The James Webb Space Telescope's Medium Resolution Spectrometer (MRS), will offer nearly 2 orders of magnitude improvement in sensitivity and >3X improvement in spectral resolution over our previous space-based mid-IR spectrometer, the…

The James Webb Space Telescope (JWST) provides low- to medium-resolution spectra with unprecedented precision and broad near- to mid-infrared wavelength coverage, enabling detailed characterization of exoplanet atmospheres. We present a new…

Kernel phase imaging (KPI) enables the direct detection of substellar companions and circumstellar dust close to and below the classical (Rayleigh) diffraction limit. We present a kernel phase analysis of JWST NIRISS full pupil images taken…

JWST promises to be the most versatile infrared observatory for the next two decades. The Near Infrared and Slitless Spectrograph (NIRISS) instrument, when used in the Aperture Masking Interferometry (AMI) mode, will provide an unparalleled…

Earth and Planetary Astrophysics · Physics 2022-12-21 Shrishmoy Ray , Sasha Hinkley , Steph Sallum , Mariangela Bonavita , Vito Squicciarini , Aarynn L. Carter , Cecilia Lazzoni

The upcoming launch of the James Webb Space Telescope (JWST) will dramatically increase our understanding of exoplanets, particularly through direct imaging. Microlensing and radial velocity surveys indicate that some M-dwarfs host long…

Earth and Planetary Astrophysics · Physics 2020-01-08 Jonathan Brande , Thomas Barclay , Joshua E. Schlieder , Eric D. Lopez , Elisa V. Quintana

JWST's Near-Infrared Imager and Slitless Spectrograph (NIRISS) includes an Aperture Masking Interferometry (AMI) mode designed to be used between 2.7{\mu}m and 4.8{\mu}m. At these wavelengths, it will have the highest angular resolution of…

We examine the positions of substellar objects in mid-infrared color-magnitude and color-color diagrams to distinguish between cloudy and cloud-free atmospheres. Using Spitzer mid-infrared spectra of 113 M5-T9 ultracool dwarfs, we derive…

Flying on board the James Webb Space Telescope (JWST) above Earth's turbulent atmosphere, the Aperture Masking Interferometer (AMI) on the NIRISS instrument is the highest-resolution infrared interferometer ever placed in space. However,…

Instrumentation and Methods for Astrophysics · Physics 2026-04-17 Max Charles , Louis Desdoigts , Benjamin Pope , Peter Tuthill , Dori Blakely , Doug Johnstone , Shrishmoy Ray , K. E. Saavik Ford , Barry McKernan , Anand Sivaramakrishnan

Low-mass or dwarf galaxies (M$_{\ast}<10^{9}$ M${\odot}$) are abundant in the Universe, yet their formation and evolution remain poorly understood. Their enhanced sensitivity to feedback from star formation and active galactic nuclei (AGN)…

The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST) offers the first opportunity to use integral-field spectroscopy from space at near-infrared wavelengths. More specifically, NIRSpec's integral-field unit can…

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