JWST NEAR-INFRARED SPECTROGRAPH (NIRSpec)

Wavelength Coverage

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

Active From

Not yet launched.

Resolution 

Varies by Observing Mode:  see Table 1 for details: NIRSpec Modes

• Pixel Scale: ~0.1"/pixel
• Resolution: ~100 (prism) ; ~1000 (medium) ; ~2700 (high)

Capabilities

• Bright Object Time Series Spectroscopy (BOTS)
• Fixed Slits Spectroscopy (FS)

• Integral Field Unit Spectroscopy (IFU)

• Multi-Object Spectroscopy (MOS)