All sensitivities on this page are 5-sigma in 1 hour of on-source integration. Point source sensitivities assume 0.5'' seeing, while surface brightness sensitivities are per pixel.
Sensitivity
|
mag for |
||||
L_cen(A) |
Width(A) |
||||
1080 | |||||
5500 |
|||||
1170 | |||||
1460 |
uJy for |
|||||||
Name |
L_cen(A) |
Width(A) |
(uJy) |
(erg/s/cm^2) |
(uJy/pixel | (erg/s/cm^2/pix) |
|
58 |
4.0E-17 |
3.0E-18 |
|||||
4.9E-17 |
3.8E-18 |
||||||
1.5E-17 |
1.2E-18 |
||||||
5025 |
60 |
1.6E-17 |
1.2E-18 |
||||
5121 |
1.8E-17 |
1.4E-18 |
|||||
127 |
2.0E-17 |
1.6E-18 |
|||||
73 |
1.6E-17 |
1.2E-18 |
|||||
85 |
1.5E-17 |
1.2E-18 |
For example, the point source emission line sensitivity
of the N487filter is (3e-14 x 0.23 x 53)/48822 =1.53e-20 W/m2
1 Jy = 10^-23 erg sec^-1 cm^-2 Hz^-1
m(AB) = -2.5 log(f) - 48.60where the value of the constant is selected to define m(AB)=V for a flat-spectrum source. In this system, an object with constant flux per unit frequency interval has zero color.
References:
Source: Frei & Gunn 1995
B = B(AB) + 0.163 (+/- 0.004)
V = V(AB) + 0.044 (+/- 0.004)
Rc = Rc(AB) +-0.117 (+/- 0.006)
Ic = Ic(AB) +-0.342 (+/- 0.008)
Band | lambda_c | dlambda/lambda | Flux at m=0 | Flux at m=0 |
---|---|---|---|---|
|
um | |
Jy | erg-1 s-1 cm-2 A-1 |
U | 0.36 | 0.15 | 1810 | 4.19e-9 |
B | 0.44 | 0.22 | 4260 | 6.60e-9 |
V | 0.55 | 0.16 | 3640 | 3.61e-9 |
Rc | 0.64 | 0.23 | 3080 | 2.26e-9 |
Ic | 0.79 | 0.19 | 2550 | 1.23e-9 |
1 Jy = 1.51e7 photons sec^-1 m^-2 (dlambda/lambda)^-1