M. Begoña Vila
A5054382685- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Adaptive optics and wavefront sensing
- Astro and Planetary Science
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
KBR (United States)
2023
Goddard Space Flight Center
2023
Abstract The Near-Infrared Imager and Slitless Spectrograph (NIRISS) is the science module of Canadian-built Fine Guidance Sensor onboard James Webb Space Telescope (JWST). NIRISS has four observing modes: (1) broadband imaging featuring seven eight NIRCam filters, (2) wide-field slitless spectroscopy at a resolving power ∼150 between 0.8 2.2 μ m, (3) single-object cross-dispersed (SOSS) enabling simultaneous wavelength coverage 0.6 2.8 m R ∼ 700, mode optimized for exoplanet relatively...
The Near Infrared Imager and Slitless Spectrograph instrument (NIRISS) is the Canadian Space Agency (CSA) contribution to suite of four science instruments JWST. As one three NIRISS observing modes, Single Object Spectroscopy (SOSS) mode tailor-made undertake time-series observations exoplanets perform transit spectroscopy. SOSS permits point sources between 0.6 2.8 um at a resolving power 650 1.25 using slit-less cross-dispersing grism while its defocussing cylindrical lens enables targets...
The James Webb Space Telescope's Near Infrared Imager and Slitless Spectrograph (JWST-NIRISS) flies a 7-hole non-redundant mask (NRM), the first such interferometer in space, operating at 3-5 \micron~wavelengths, bright limit of $\simeq 4$ magnitudes W2. We describe NIRISS Aperture Masking Interferometry (AMI) mode to help potential observers understand its underlying principles, present some sample science cases, explain operational observing strategies, indicate how AMI proposals can be...
The Near-Infrared Imager and Slitless Spectrograph (NIRISS) is the science module of Canadian-built Fine Guidance Sensor (FGS) onboard James Webb Space Telescope (JWST). NIRISS has four observing modes: 1) broadband imaging featuring seven eight NIRCam filters, 2) wide-field slitless spectroscopy (WFSS) at a resolving power $\sim$150 between 0.8 2.2 $\mu$m, 3) single-object cross-dispersed (SOSS) enabling simultaneous wavelength coverage 0.6 2.8 $\mu$m R$\sim$700, mode optimized for...
The Near Infrared Imager and Slitless Spectrograph instrument (NIRISS) is the Canadian Space Agency (CSA) contribution to suite of four science instruments JWST. As one three NIRISS observing modes, Single Object Spectroscopy (SOSS) mode tailor-made undertake time-series observations exoplanets perform transit spectroscopy. SOSS permits point sources between 0.6 2.8 um at a resolving power 650 1.25 using slit-less cross-dispersing grism while its defocussing cylindrical lens enables targets...
The James Webb Space Telescope's Near Infrared Imager and Slitless Spectrograph (JWST-NIRISS) flies a 7-hole non-redundant mask (NRM), the first such interferometer in space, operating at 3-5 \micron~wavelengths, bright limit of $\simeq 4$ magnitudes W2. We describe NIRISS Aperture Masking Interferometry (AMI) mode to help potential observers understand its underlying principles, present some sample science cases, explain operational observing strategies, indicate how AMI proposals can be...