Euclid NISP instrument
The Near Infrared Spectrometer and Photometer (NISP) instrument is composed of a matrix of 4×4 2040×2040 18-micron pixel TIS detectors provided by Teledyne, covering a field of view of 0.53 deg2 shared with VIS, with 0.3 arcsecond-wide pixels. The photometric channel of NISP will be equipped with 3 broad band filters (Y, J and H) covering the wavelength ranges 900–1192 nm, 1192–1544 nm and 1544–2000 nm, respectively. The spectroscopic channel of NISP will be equipped with 4 different low resolution near-infrared grisms (with spectral resolution of R=380 for a 0.5 arcsecond diameter source), 3 'red' grisms (1250 nm – 1850 nm) and 1 'blue' grisms (920 nm – 1250 nm), but with no slit (i.e. performing 'slitless' spectroscopy).
| Instrument characteristics Near-infrared spectrometer and photometer (NISP) |
|||||
| Field-of-view | 0.763 deg × 0.722 deg | ||||
| Capability | Near-infrared imaging photometry | Near-infrared spectroscopy | |||
| Wavelength range | Y (920 - 1146 nm) | J (1146 - 1372 nm) | H (1372 - 2000 nm) | 1100 - 2000 nm | |
| Sensitivity | 24 mag 5σ point source |
24 mag 5σ point source |
24 mag 5σ point source |
3 × 10-16 erg cm-2 s-1 3.5σ unresolved line flux |
|
| Detector Technology | 16 arrays 2k × 2k near-infrared sensitive HgCdTe detectors |
||||
| Pixel Size Spectral resolution |
0.3 arcsec | 0.3 arcsec R=250 |
|||
Last Update: 19 September 2019