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The JWST Near Infrared Spectrograph (NIRSpec) enables 0.6–5.3 μm spectroscopy at resolving powers of ~100, ~1,000, and ~2,700 in 4 observing modes. NIRSpec is designed to be particularly powerful for multiplexing spectroscopy and high contrast, high throughput single object spectroscopy. 

Key science uses of NIRSpec include, but are not limited to: statistical survey spectroscopy for galaxy formation and evolution studies, characterization of stellar populations, spatially resolved spectroscopy of extended targets and characterization of exoplanet atmospheres using transit observations.

The 4 observing modes of NIRSpec are:

Contributors to NIRSpec article content include:  Catarina Alves de Oliveira, Tracy Beck, Stephan Birkmann, Torsten Boeker, Anurag Deshpande, Pierre Ferruit, Giovana Giardino, Alaina Henry, Graham Kanarek, Diane Karakla, Susan Kassin, Tony Keyes, Nora Luetzgendorf, James Muzerolle, Patrick Ogle, Cheryl Pavlovsky, Maria Pena-Guerrero, Charles Proffitt, Elena Puga, Tim Rawle, Ben Sargent, Marco Sirianni, Dave Soderblom, Leonardo Ubeda, Glenn Wahlgren and Emily Wislowski.

JWST Observatory and Instrumentation

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