The Canadian instrument and spectrograph will do first light detection, and seek out and explore exoplanets.
NIRISS will work alongside Canada's fine guidance sensor , which allows the telescope to point precisely at targets from its deep-space location. Doyon, also principal investigator of FGS, said he is eager to see the new science.
"I am pinching myself at the thought that we are just days away from the start of science operations, and in particular from NIRISS probing its first exoplanet atmospheres," Doyon added in the NASA blog post from Monday . Both FGS and NIRISS were built by Honeywell and funded by the Canadian Space Agency. As a result of these contributions, Canadian researchers have a guaranteed share of the science on Webb, which will face aThe last NIRISS mode to be fully ready for science was"single object slitless spectroscopy." This mode allows the instrument to separate incoming light from a distant object, measuring the amount of light at specific wavelengths.
Since elements have a distinctive light signature , this mode of observations on NIRISS will allow researchers to infer what elements are present in an 's composition. In giant planets, for example, Webb may be able to see trace elements of oxygen or other elements that are common in the solar system.
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