B.3 Look-up Tables

In this section we provide look-up tables to facilitate rapid, approximate conversion between the different systems mentioned in the preceding section. IT is important to note that the precise values will change as the sensitivity of NICMOS continually changes. Users should follow the formulas above to generate their own data while keeping in mind that their calculated values should be close to those provided here.

For both integrated source fluxes and surface brightnesses, we provide tables of conversions between systems at the wavelengths of the four commonly used photometric bands, which cover the NICMOS operating waveband of 0.8–2.5 microns. We are adopting here the CIT system defined in Table B.2.

Using Table B.3, it is possible to estimate the CIT magnitude corresponding to any flux in Jy by using the property that multiplying or dividing the flux by one hundred adds or subtracts five magnitudes.

Table B.3: Fν to Magnitude Conversion.

Fν [Jy]	I	J	H	K
10.0	5.88	5.56	4.98	4.48
8.0	6.12	5.80	5.22	4.72
6.0	6.44	6.11	5.53	5.04
5.0	6.63	6.31	5.73	5.23
4.0	6.88	6.55	5.97	5.48
3.0	7.19	6.86	6.29	5.79
2.5	7.39	7.06	6.48	5.99
2.0	7.63	7.30	6.73	6.23
1.5	7.94	7.62	7.04	6.54
1.25	8.14	7.81	7.24	6.74
1.0	8.38	8.06	7.48	6.98
0.8	8.62	8.30	7.72	7.22
0.6	8.94	8.61	8.03	7.54
0.5	9.13	8.81	8.23	7.73
0.4	9.38	9.05	8.47	7.98
0.3	9.69	9.36	8.79	8.29
0.25	9.89	9.57	8.98	8.49
0.2	10.13	9.8	9.23	8.73
0.15	10.44	10.12	9.54	9.04
0.125	10.64	10.31	9.74	9.24
0.1	10.88	10.56	9.98	9.48

 

Table B.4: I-Band Flux Conversion.  

Fν [Jy]	I [mag]	Fλ [Wm-2μm-1]	Fλ [W cm-2μm-1]	Fλ [erg s-1 cm-2 Å-1]
2250	0.0	8.32×10–9	8.32×10–13	8.32×10–10
894	1.0	3.312×10–9	3.312×10–13	3.312×10–10
356	2.0	1.319×10–9	1.319×10–13	1.319×10–10
142	3.0	5.25×10–10	5.25×10–14	5.25×10–11
56.4	4.0	2.09×10–10	2.09×10–14	2.09×10–11
22.5	5.0	8.32×10–11	8.32×10–15	8.32×10–12
8.94	6.0	3.312×10–11	3.312×10–15	3.312×10–12
3.56	7.0	1.319×10–11	1.319×10–15	1.319×10–12
1.42	8.0	5.25×10–12	5.25×10–16	5.25×10–13
0.564	9.0	2.09×10–12	2.09×10–16	2.09×10–13
0.225	10.0	8.32×10–13	8.32×10–17	8.32×10–14
0.0894	11.0	3.312×10–13	3.312×10–17	3.312×10–14
0.0356	12.0	1.319×10–13	1.319×10–17	1.319×10–14
0.0142	13.0	5.25×10–14	5.25×10–18	5.25×10–15
0.00564	14.0	2.09×10–14	2.09×10–18	2.09×10–15
0.00225	15.0	8.32×10–15	8.32×10–19	8.32×10–16
8.94×10–4	16.0	3.312×10–15	3.312×10–19	3.312×10–16
3.56×10–4	17.0	1.319×10–15	1.319×10–19	1.319×10–16
1.42×10–4	18.0	5.25×10–16	5.25×10–20	5.25×10–17
5.64×10–5	19.0	2.09×10–16	2.09×10–20	2.09×10–17
2.25×10–5	20.0	8.32×10–17	8.32×10–21	8.32×10–18
8.94×10–6	21.0	3.312×10–17	3.312×10–21	3.312×10–18
3.56×10–6	22.0	1.319×10–17	1.319×10–21	1.319×10–18
1.42×10–6	23.0	5.25×10–18	5.25×10–22	5.25×10–19
5.64×10–7	24.0	2.09×10–18	2.09×10–22	2.09×10–19
2.25×10–7	25.0	8.32×10–19	8.32×10–23	8.32×10–20
8.94×10–8	26.0	3.312×10–19	3.312×10–23	3.312×10–20

 

Table B.5: J-band Flux Conversion.

Fν [Jy]	J [mag]	Fλ [Wm-2μm-1]	Fλ [Wcm-2μm-1]	Fλ [erg cm-2s-1Å-1]
1670	0.0	3.21×10–9	3.21×10–13	3.21×10–10
665	1.0	1.28×10–9	1.28×10–13	1.28×10–10
265	2.0	5.08×10–10	5.08×10–14	5.08×10–11
106	3.0	2.02×10–10	2.02×10–14	2.02×10–11
42.0	4.0	8.06×10–11	8.06×10–15	8.06×10–12
16.7	5.0	3.21×10–11	3.21×10–15	3.21×10–12
6.65	6.0	1.28×10–11	1.28×10–15	1.28×10–12
2.65	7.0	5.08×10–12	5.08×10–16	5.08×10–13
1.06	8.0	2.02×10–12	2.02×10–16	2.02×10–13
0.420	9.0	8.06×10–13	8.06×10–17	8.06×10–14
0.167	10.0	3.21×10–13	3.21×10–17	3.21×10–14
0.0665	11.0	1.28×10–13	1.28×10–17	1.28×10–14
0.0265	12.0	5.08×10–14	5.08×10–18	5.08×10–15
0.0106	13.0	2.02×10–14	2.02×10–18	2.02×10–15
0.00420	14.0	8.06×10–15	8.06×10–19	8.06×10–16
0.00167	15.0	3.21×10–15	3.21×10–19	3.21×10–16
6.65×10–4	16.0	1.28×10–15	1.28×10–19	1.28×10–16
2.65×10–4	17.0	5.08×10–16	5.08×10–20	5.08×10–17
1.06×10–4	18.0	2.02×10–16	2.02×10–20	2.02×10–17
4.20×10–5	19.0	8.06×10–17	8.06×10–21	8.06×10–18
1.67×10–5	20.0	3.21×10–17	3.21×10–21	3.21×10–18
6.65×10–6	21.0	1.28×10–17	1.28×10–21	1.28×10–18
2.65×10–6	22.0	5.08×10–18	5.08×10–22	5.08×10–19
1.06×10–6	23.0	2.02×10–18	2.02×10–22	2.02×10–19
4.20×10–7	24.0	8.06×10–19	8.06×10–23	8.06×10–20
1.67×10–7	25.0	3.21×10–19	3.21×10–23	3.21×10–20
6.65×10–8	26.0	1.28×10–19	1.28×10–23	1.28×10–20

Table B.6: H-band Flux Conversion.

Fν [Jy]	H [mag]	Fλ [Wm-2μm-1]	Fλ [Wcm-2μm-1]	Fλ [erg s-1cm-2Å-1]
980	0.0	1.08×10–9	1.08×10–13	1.08×10–10
390	1.0	4.3×10–10	4.3×10–14	4.3×10–11
155	2.0	1.712×10–10	1.712×10–14	1.712×10–11
61.8	3.0	6.814×10–11	6.814×10–15	6.814×10–12
24.6	4.0	2.713×10–11	2.713×10–15	2.713×10–12
9.8	5.0	1.08×10–11	1.08×10–15	1.08×10–12
3.9	6.0	4.3×10–12	4.3×10–16	4.3×10–13
1.55	7.0	1.712×10–12	1.712×10–16	1.712×10–13
0.618	8.0	6.814×10–13	6.814×10–17	6.814×10–14
0.246	9.0	2.713×10–13	2.713×10–17	2.713×10–14
0.098	10.0	1.08×10–13	1.08×10–17	1.08×10–14
0.039	11.0	4.3×10–14	4.3×10–18	4.3×10–15
0.0155	12.0	1.712×10–14	1.712×10–18	1.712×10–15
0.00618	13.0	6.814×10–15	6.814×10–19	6.814×10–16
0.00246	14.0	2.713×10–15	2.713×10–19	2.713×10–16
9.8×10–4	15.0	1.08×10–15	1.08×10–19	1.08×10–16
3.9×10–4	16.0	4.3×10–16	4.3×10–20	4.3×10–17
1.55×10–4	17.0	1.712×10–16	1.712×10–20	1.712×10–17
6.18×10–5	18.0	6.814×10–17	6.814×10–21	6.814×10–18
2.46×10–5	19.0	2.713×10–17	2.713×10–21	2.713×10–18
9.8×10–6	20.0	1.08×10–17	1.08×10–21	1.08×10–18
3.9×10–6	21.0	4.3×10–18	4.3×10–22	4.3×10–19
1.55×10–6	22.0	1.712×10–18	1.712×10–22	1.712×10–19
6.18×10–7	23.0	6.814×10–19	6.814×10–23	6.814×10–20
2.46×10–7	24.0	2.713×10–19	2.713×10–23	2.713×10–20
9.8×10–8	25.0	1.08×10–19	1.08×10–23	1.08×10–20
3.9×10–8	26.0	4.3×10–20	4.3×10–24	4.3×10–21

Table B.7: K-band Flux Conversion.

Fν [Jy]	K [mag]	Fλ [Wm-2μm-1]	Fλ [Wcm-2μm-1]	Fλ [erg s-1cm-2Å-1]
620	0.0	3.84×10–10	3.84×10–14	3.84×10–11
247	1.0	1.53×10–10	1.53×10–14	1.53×10–11
98.3	2.0	6.09×10–11	6.09×10–15	6.09×10–12
39.1	3.0	2.43×10–11	2.43×10–15	2.43×10–12
15.6	4.0	9.66×10–12	9.66×10–16	9.66×10–13
6.20	5.0	3.84×10–12	3.84×10–16	3.84×10–13
2.47	6.0	1.53×10–12	1.53×10–16	1.53×10–13
0.983	7.0	6.09×10–13	6.09×10–17	6.09×10–14
0.391	8.0	2.43×10–13	2.43×10–17	2.43×10–14
0.156	9.0	9.66×10–14	9.66×10–18	9.66×10–15
0.0620	10.0	3.84×10–14	3.84×10–18	3.84×10–15
0.0247	11.0	1.53×10–14	1.53×10–18	1.53×10–15
0.00983	12.0	6.09×10–15	6.09×10–19	6.09×10–16
0.00391	13.0	2.43×10–15	2.43×10–19	2.43×10–16
0.00156	14.0	9.66×10–16	9.66×10–20	9.66×10–17
6.20×10–4	15.0	3.84×10–16	3.84×10–20	3.84×10–17
2.47×10–4	16.0	1.53×10–16	1.53×10–20	1.53×10–17
9.83×10–5	17.0	6.09×10–17	6.09×10–21	6.09×10–18
3.91×10–5	18.0	2.43×10–17	2.43×10–21	2.43×10–18
1.56×10–5	19.0	9.66×10–18	9.66×10–22	9.66×10–19
6.20×10–6	20.0	3.84×10–18	3.84×10–22	3.84×10–19
2.47×10–6	21.0	1.53×10–18	1.53×10–22	1.53×10–19
9.83×10–7	22.0	6.09×10–19	6.09×10–23	6.09×10–20
3.91×10–7	23.0	2.43×10–19	2.43×10–23	2.43×10–20
1.56×10–7	24.0	9.66×10–20	9.66×10–24	9.66×10–21
6.20×10–8	25.0	3.84×10–20	3.84×10–24	3.84×10–21
2.47×10–8	26.0	1.53×10–20	1.53×10–24	1.53×10–21

Table B.8: Surface Brightness Conversion.

mag / arcsec2	I-Band		J-Band		H-Band		K-Band
	Jy / arcsec2	MJy / steradian	Jy / arcsec2	MJy / steradian	Jy / arcsec2	MJy / steradian	Jy / arcsec2	MJy / steradian
0.0	0.6251	2.66×104	0.4630	1.97×104	0.2726	1.16×104	0.1720	7320
1.0	0.2491	1.06×104	0.1847	7860	0.1083	4610	0.0688	2930
2.0	0.0989	4210	0.0736	3130	0.0430	1830	0.0273	1160
3.0	0.0395	1680	0.0294	1250	0.0172	730	0.0109	462
4.0	0.0157	667	0.0117	496	0.0068	291	0.0043	184
5.0	0.0062	266	0.0046	197	0.0027	116	0.0172	732
6.0	0.0025	106	0.0018	78.6	0.0011	46.1	6.88×10–4	29.3
7.0	9.89×10–4	42.1	7.36×10–4	31.3	4.30×10–4	18.3	2.73×10–4	11.6
8.0	3.95×10–4	16.8	2.94×10–4	12.5	1.72×10–4	7.3	1.09×10–4	4.62
9.0	1.57×10–4	6.67	1.17×10–4	4.96	6.84×10–5	2.91	4.32×10–5	1.84
10.0	6.25×10–5	2.66	4.63×10–5	1.97	2.73×10–5	1.16	1.72×10–5	0.732
11.0	2.49×10–5	1.06	1.85×10–5	0.786	1.08×10–5	0.461	6.88×10–6	0.293
12.0	9.89×10–6	0.421	7.36×10–6	0.313	4.30×10–6	0.183	2.73×10–7	0.116
13.0	3.95×10–6	0.168	2.94×10–6	0.125	1.72×10–6	0.073	1.09×10–7	0.0462
14.0	1.57×10–6	0.0667	1.17×10–6	0.0496	6.84×10–7	0.0291	4.32×10–8	0.0184
15.0	6.25×10–7	0.0266	4.63×10–7	0.0197	2.73×10–7	0.0116	1.72×10–8	0.00732
16.0	2.49×10–7	0.0106	1.85×10–7	0.00786	1.08×10–7	0.00461	6.88×10–9	0.00293
17.0	9.89×10–8	0.00421	7.36×10–8	0.00313	4.30×10–8	0.00183	2.73×10–9	0.00116
18.0	3.95×10–8	0.00168	2.94×10–8	0.00125	1.72×10–8	7.3×10–4	1.09×10–9	4.62×10–4
19.0	1.57×10–8	6.67×10–4	1.17×10–8	4.96×10–4	6.84×10–9	2.91×10–4	4.32×10–10	1.84×10–4
20.0	6.25×10–9	2.66×10–4	4.63×10–9	1.97×10–4	2.73×10–9	1.16×10–4	1.72×10–10	7.32×10–5
21.0	2.49×10–9	1.06×10–4	1.85×10–9	7.86×10–5	1.08×10–9	4.61×10–5	6.88×10–11	2.93×10–5
22.0	9.89×10–10	4.21×10–5	7.36×10–10	3.13×10–5	4.30×10–10	1.83×10–5	2.73×10–11	1.16×10–5
23.0	3.95×10–10	1.68×10–5	2.94×10–10	1.25×10–5	1.72×10–10	7.3×10–6	1.09×10–11	4.62×10–6
24.0	1.57×10–10	6.67×10–6	1.17×10–10	4.96×10–6	6.84×10–11	2.91×10–6	4.32×10–12	1.84×10–6
25.0	6.25×10–11	2.66×10–6	4.63×10–11	1.97×10–6	2.73×10–11	1.16×10–6	1.72×10–12	7.32×10–7
26.0	2.49×10–11	1.06×10–6	1.85×10–11	7.86×10–7	1.08×10–11	4.61×10–7	6.88×10–13	2.93×10–7