Table 3
Summary of the Euclid NISP AB mag photometric system.
| NISP spectral response characteristics | ||||||||
|---|---|---|---|---|---|---|---|---|
| Filter | 0.1% cut-on (nm) | 50% cut-on (nm) | 50% cut-off (nm) | 0.1% cut-off (nm) | λcen (nm) | Width (nm) | 〈Tpeak〈 | ZP (AB mag) |
| Filter | 0.1% cut-on (nm) | 50% cut-on (nm) | 50% cut-off (nm) | 0.1% cut-off (nm) | λcen (nm) | Width (nm) | 〈Tpeak〈 | ZP (AB mag) |
| YE | 937.5 | 949.6 | 1212.3 | 1243.2 | 1080.9 | 262.7 | 0.772 | 25.04 |
| JE | 1151.1 | 1167.6 | 1567.0 | 1595.0 | 1367.3 | 399.4 | 0.790 | 25.26 |
| HE | 1495.6 | 1521.5 | 2021.4 | 2056.8 | 1771.4 | 499.9 | 0.782 | 25.21 |
| Wavelength uncertainty (centre of FPA) | Wavelength uncertainty (corner of FPA) | |||||||
| Filter | σ50 (nm) | σcen (nm) | σ50 (nm) | σcen (nm) | ||||
| YE | 0.8 | 0.6 | 0.8 | 0.6 | ||||
| JE | 0.8 | 0.6 | 0.9 | 0.6 | ||||
| HE | 0.8 | 0.6 | 0.9 | 0.6 | ||||
Notes. Wavelengths and their uncertainties are computed from higher precision data and rounded to one digit. The first half of the table lists the global passband characteristics; ‘width’ refers to the distance between the 50% cut-on and cut-off wavelengths, 〈Tpeak〉 to the mean in-band response, and ZP to the photometric zero point in the AB system. The second half of the table lists the total uncertainties of the cut-on and cut-off wavelengths, σ50, and that of the central wavelength, σcen.
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