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Celebrating 75 Years of Discovery
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P200 Filter Sensitivities and Sky Background
View original table.
| U | B | V | Rc | Ic | u' | g' | r' | i' | z' | J | H | Ks | K | Notes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| λeff (Å, µm) |
3640 | 4410 | 5470 | 6490 | 8020 | 3550 | 4670 | 6160 | 7470 | 8920 | 1.2483 | 1.6313 | 2.145 | 2.201 | |
| FWHM (Å, µm) |
524 | 1008 | 826 | 1576 | 1543 | 599 | 1379 | 1382 | 1535 | 1370 | 0.162 | 0.296 | 0.32 | 0.34 | |
| fν (Jy, 10-26 W/m2/Hz) |
1810 | 4260 | 3631 | 3080 | 2550 | 1545 | 3991 | 3174 | 2593 | 2222 | 1530 | 1019 | 667 | 631 | 0m Vega |
| fλ (10-12 erg/cm2/s/Å) |
4190 | 6601 | 3641 | 2190 | 1166 | 3666 | 5410 | 2500 | 1390 | 832 | 294 | 114 | 43 | 39 | |
| Nλ (phot/cm2/s/Å) |
760 | 1460 | 1000 | 720 | 490 | 653 | 1270 | 774 | 522 | 373 | 185 | 93 | 45 | 43 | 0m Vega |
| Nominal extinction (mag/airmass) |
0.56 | 0.27 | 0.13 | 0.08 | 0.05 | 0.62 | 0.20 | 0.10 | 0.06 | 0.04 | 0.05 | 0.03 | 0.05 | 0.05 | |
| Aube data | 22.4 | 21.3 | 22.2 | 20.9 | May 2005 | ||||||||||
| P200 dark sky background (mag/arcsec2) |
21.8 | 20.7 | 19.9 | 18.6 | 15.4 | 13.9 | 12.5 | May 2007 |
Data for LFC, WIRC, and PHARO
| Instr. | Pixel (arcsec2) |
P200 area (m2) |
Gain (e−/DN) |
u' | g' | r' | i' | z' | J | H | Ks | Notes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Detective quantum efficiency | LFC | 17.8 | 0.18 | 2.0 | 12% | 24% | 45% | 47% | 19% | above atmosphere to detector | |||
| WIRC | 13 | 0.25 | 5.3 | 17% | 21% | 33% | |||||||
| PHARO | 16 | 0.025 | 1.9 | 23% | 29% | 50% | |||||||
| Zeropoint (1e−/sec) |
LFC | 24.9 | 27.3 | 27.4 | 27.1 | 26.1 | M1 mag | ||||||
| WIRC | 24.6 | 24.9 | 24.4 | ||||||||||
| PHARO 25mas/std-cross | 24.8 | 25.1 | 24.7 | ||||||||||
| Measured sky background (e−/sec/arcsec2) |
LFC | 247 | 741 | 1173 | 1420 | 2005 | |||||||
| WIRC | 4700 | 23080 | 58000 | ||||||||||
| LFC | 173 | 520 | 820 | 990 | 2007 | ||||||||
| PHARO | 7300 | 44000 | 101000 | ||||||||||
References
- Hewett et al, MNRAS 367, 1365, 2006 (see eg. Table 7)
- Fukugita etal. AJ 111, 1748, 1996 (eg. Tables 2)
- Bessell ARA&A, 43, 293, 2005 (eg. Fig 4)
- Mag-to-Jy, Spitzer
- UKIDSS WFCAM filters
- Cambridge WFCAM filter reference Intrinsic colors and system inter-relations
- Bessell & Brett, PASP 100, 1134, 1988 (eg. Tables IV, V)
- Bessell, PASP 102, 1181, 1990 (eg. Table 2)
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Filters & Sky / v 2.0.1
Last updated: 27 March 2019 ACM
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