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NICMOS Instrument Handbook for Cycle 11

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.

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 A2.2.

By using Table A2.3 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 A2.3: F to Magnitude Conversion
F [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 A2.4: I- Band Flux Conversion
F [Jy] I [mag] F [Wm^-2µm^-1] F [W cm^-2µm^-1] F [erg s^-1 cm^-2 Å-1]

2250

0.0

8.32x10^-9

8.32x10^-13

8.32x10^-10

894

1.0

3.312x10^-9

3.312x10^-13

3.312x10^-10

356

2.0

1.319x10^-9

1.319x10^-13

1.319x10^-10

142

3.0

5.25x10^-10

5.25x10^-14

5.25x10^-11

56.4

4.0

2.09x10^-10

2.09x10^-14

2.09x10^-11

22.5

5.0

8.32x10^-11

8.32x10^-15

8.32x10^-12

8.94

6.0

3.312x10^-11

3.312x10^-15

3.312x10^-12

3.56

7.0

1.319x10^-11

1.319x10^-15

1.319x10^-12

1.42

8.0

5.25x10^-12

5.25x10^-16

5.25x10^-13

0.564

9.0

2.09x10^-12

2.09x10^-16

2.09x10^-13

0.225

10.0

8.32x10^-13

8.32x10^-17

8.32x10^-14

0.0894

11.0

3.312x10^-13

3.312x10^-17

3.312x10^-14

0.0356

12.0

1.319x10^-13

1.319x10^-17

1.319x10^-14

0.0142

13.0

5.25x10^-14

5.25x10^-18

5.25x10^-15

0.00564

14.0

2.09x10^-14

2.09x10^-18

2.09x10^-15

0.00225

15.0

8.32x10^-15

8.32x10^-19

8.32x10^-16

8.94x10^-4

16.0

3.312x10^-15

3.312x10^-19

3.312x10^-16

3.56x10^-4

17.0

1.319x10^-15

1.319x10^-19

1.319x10^-16

1.42x10^-4

18.0

5.25x10^-16

5.25x10^-20

5.25x10^-17

5.64x10^-5

19.0

2.09x10^-16

2.09x10^-20

2.09x10^-17

2.25x10^-5

20.0

8.32x10^-17

8.32x10^-21

8.32x10^-18

8.94x10^-6

21.0

3.312x10^-17

3.312x10^-21

3.312x10^-18

3.56x10^-6

22.0

1.319x10^-17

1.319x10^-21

1.319x10^-18

1.42x10^-6

23.0

5.25x10^-18

5.25x10^-22

5.25x10^-19

5.64x10^-7

24.0

2.09x10^-18

2.09x10^-22

2.09x10^-19

2.25x10^-7

25.0

8.32x10^-19

8.32x10^-23

8.32x10^-20

8.94x10^-8

26.0

3.312x10^-19

3.312x10^-23

3.312x10^-20

Table A2.5: J-band Flux Conversion
F [Jy] J [mag] F [Wm^-2µm^-1] F [Wcm^-2µm^-1] F [erg cm^-2s^-1Å^-1]

1670

0.0

3.21x10^-9

3.21x10^-13

3.21x10^-10

665

1.0

1.28x10^-9

1.28x10^-13

1.28x10^-10

265

2.0

5.08x10^-10

5.08x10^-14

5.08x10^-11

106

3.0

2.02x10^-10

2.02x10^-14

2.02x10^-11

42.0

4.0

8.06x10^-11

8.06x10^-15

8.06x10^-12

16.7

5.0

3.21x10^-11

3.21x10^-15

3.21x10^-12

6.65

6.0

1.28x10^-11

1.28x10^-15

1.28x10^-12

2.65

7.0

5.08x10^-12

5.08x10^-16

5.08x10^-13

1.06

8.0

2.02x10^-12

2.02x10^-16

2.02x10^-13

0.420

9.0

8.06x10^-13

8.06x10^-17

8.06x10^-14

0.167

10.0

3.21x10^-13

3.21x10^-17

3.21x10^-14

0.0665

11.0

1.28x10^-13

1.28x10^-17

1.28x10^-14

0.0265

12.0

5.08x10^-14

5.08x10^-18

5.08x10^-15

0.0106

13.0

2.02x10^-14

2.02x10^-18

2.02x10^-15

0.00420

14.0

8.06x10^-15

8.06x10^-19

8.06x10^-16

0.00167

15.0

3.21x10^-15

3.21x10^-19

3.21x10^-16

6.65x10^-4

16.0

1.28x10^-15

1.28x10^-19

1.28x10^-16

2.65x10^-4

17.0

5.08x10^-16

5.08x10^-20

5.08x10^-17

1.06x10^-4

18.0

2.02x10^-16

2.02x10^-20

2.02x10^-17

4.20x10^-5

19.0

8.06x10^-17

8.06x10^-21

8.06x10^-18

1.67x10^-5

20.0

3.21x10^-17

3.21x10^-21

3.21x10^-18

6.65x10^-6

21.0

1.28x10^-17

1.28x10^-21

1.28x10^-18

2.65x10^-6

22.0

5.08x10^-18

5.08x10^-22

5.08x10^-19

1.06x10^-6

23.0

2.02x10^-18

2.02x10^-22

2.02x10^-19

4.20x10^-7

24.0

8.06x10^-19

8.06x10^-23

8.06x10^-20

1.67x10^-7

25.0

3.21x10^-19

3.21x10^-23

3.21x10^-20

6.65x10^-8

26.0

1.28x10^-19

1.28x10^-23

1.28x10^-20

Table A2.6: H-band Flux Conversion
F [Jy] H [mag] F [Wm-2µm-1] F [Wcm^-2µm^-1] F [erg s^-1cm^-2Å^-1]

980

0.0

1.08x10^-9

1.08x10^-13

1.08x10^-10

390

1.0

4.3x10^-10

4.3x10^-14

4.3x10^-11

155

2.0

1.712x10^-10

1.712x10^-14

1.712x10^-11

61.8

3.0

6.814x10^-11

6.814x10^-15

6.814x10^-12

24.6

4.0

2.713x10^-11

2.713x10^-15

2.713x10^-12

9.8

5.0

1.08x10^-11

1.08x10^-15

1.08x10^-12

3.9

6.0

4.3x10^-12

4.3x10^-16

4.3x10^-13

1.55

7.0

1.712x10^-12

1.712x10^-16

1.712x10^-13

0.618

8.0

6.814x10^-13

6.814x10^-17

6.814x10^-14

0.246

9.0

2.713x10^-13

2.713x10^-17

2.713x10^-14

0.098

10.0

1.08x10^-13

1.08x10^-17

1.08x10^-14

0.039

11.0

4.3x10^-14

4.3x10^-18

4.3x10^-15

0.0155

12.0

1.712x10^-14

1.712x10^-18

1.712x10^-15

0.00618

13.0

6.814x10^-15

6.814x10^-19

6.814x10^-16

0.00246

14.0

2.713x10^-15

2.713x10^-19

2.713x10^-16

9.8x10^-4

15.0

1.08x10^-15

1.08x10^-19

1.08x10^-16

3.9x10^-4

16.0

4.3x10^-16

4.3x10^-20

4.3x10^-17

1.55x10^-4

17.0

1.712x10^-16

1.712x10^-20

1.712x10^-17

6.18x10^-5

18.0

6.814x10^-17

6.814x10^-21

6.814x10^-18

2.46x10^-5

19.0

2.713x10^-17

2.713x10^-21

2.713x10^-18

9.8x10^-6

20.0

1.08x10^-17

1.08x10^-21

1.08x10^-18

3.9x10^-6

21.0

4.3x10^-18

4.3x10^-22

4.3x10^-19

1.55x10^-6

22.0

1.712x10^-18

1.712x10^-22

1.712x10^-19

6.18x10^-7

23.0

6.814x10^-19

6.814x10^-23

6.814x10^-20

2.46x10^-7

24.0

2.713x10^-19

2.713x10^-23

2.713x10^-20

9.8x10^-8

25.0

1.08x10^-19

1.08x10^-23

1.08x10^-20

3.9x10^-8

26.0

4.3x10^-20

4.3x10^-24

4.3x10^-21

Table A2.7: K-band Flux Conversion
F [Jy] K [mag] F [Wm^-2µm^-1] F [Wcm^-2µm^-1] F [erg s^-1cm^-2Å^-1]

620

0.0

3.84x10^-10

3.84x10^-14

3.84x10^-11

247

1.0

1.53x10^-10

1.53x10^-14

1.53x10^-11

98.3

2.0

6.09x10^-11

6.09x10^-15

6.09x10^-12

39.1

3.0

2.43x10^-11

2.43x10^-15

2.43x10^-12

15.6

4.0

9.66x10^-12

9.66x10^-16

9.66x10^-13

6.20

5.0

3.84x10^-12

3.84x10^-16

3.84x10^-13

2.47

6.0

1.53x10^-12

1.53x10^-16

1.53x10^-13

0.983

7.0

6.09x10^-13

6.09x10^-17

6.09x10^-14

0.391

8.0

2.43x10^-13

2.43x10^-17

2.43x10^-14

0.156

9.0

9.66x10^-14

9.66x10^-18

9.66x10^-15

0.0620

10.0

3.84x10^-14

3.84x10^-18

3.84x10^-15

0.0247

11.0

1.53x10^-14

1.53x10^-18

1.53x10^-15

0.00983

12.0

6.09x10^-15

6.09x10^-19

6.09x10^-16

0.00391

13.0

2.43x10^-15

2.43x10^-19

2.43x10^-16

0.00156

14.0

9.66x10^-16

9.66x10^-20

9.66x10^-17

6.20x10^-4

15.0

3.84x10^-16

3.84x10^-20

3.84x10^-17

2.47x10^-4

16.0

1.53x10^-16

1.53x10^-20

1.53x10^-17

9.83x10^-5

17.0

6.09x10^-17

6.09x10^-21

6.09x10^-18

3.91x10^-5

18.0

2.43x10^-17

2.43x10^-21

2.43x10^-18

1.56x10^-5

19.0

9.66x10^-18

9.66x10^-22

9.66x10^-19

6.20x10^-6

20.0

3.84x10^-18

3.84x10^-22

3.84x10^-19

2.47x10^-6

21.0

1.53x10^-18

1.53x10^-22

1.53x10^-19

9.83x10^-7

22.0

6.09x10^-19

6.09x10^-23

6.09x10^-20

3.91x10^-7

23.0

2.43x10^-19

2.43x10^-23

2.43x10^-20

1.56x10^-7

24.0

9.66x10^-20

9.66x10^-24

9.66x10^-21

6.20x10^-8

25.0

3.84x10^-20

3.84x10^-24

3.84x10^-21

2.47x10^-8

26.0

1.53x10^-20

1.53x10^-24

1.53x10^-21

Table A2.8: 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

2.66x10⁴

0.4630

1.97x10⁴

0.2726

1.16x10⁴

0.1720

7320

1.0

0.2491

1.06x10⁴

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

6.88x10-4

29.3

7.0

9.89x10-4

42.1

7.36x10-4

31.3

4.30x10-4

18.3

2.73x10-4

11.6

8.0

3.95x10-4

16.8

2.94x10-4

12.5

1.72x10-4

7.3

1.09x10-4

4.62

9.0

1.57x10-4

6.67

1.17x10-4

4.96

6.84x10-5

2.91

4.32x10-5

1.84

10.0

6.25x10-5

2.66

4.63x10-5

1.97

2.73x10-5

1.16

1.72x10-5

0.732

11.0

2.49x10-5

1.06

1.85x10-5

0.786

1.08x10-5

0.461

6.88x10-6

0.293

12.0

9.89x10-6

0.421

7.36x10-6

0.313

4.30x10-6

0.183

2.73x10-7

0.116

13.0

3.95x10-6

0.168

2.94x10-6

0.125

1.72x10-6

0.073

1.09x10-7

0.0462

14.0

1.57x10-6

0.0667

1.17x10-6

0.0496

6.84x10-7

0.0291

4.32x10-8

0.0184

15.0

6.25x10-7

0.0266

4.63x10-7

0.0197

2.73x10-7

0.0116

1.72x10-8

0.00732

16.0

2.49x10-7

0.0106

1.85x10-⁷

0.00786

1.08x10-7

0.00461

6.88x10-9

0.00293

17.0

9.89x10-8

0.00421

7.36x10-⁸

0.00313

4.30x10-8

0.00183

2.73x10-9

0.00116

18.0

3.95x10-8

0.00168

2.94x10-⁸

0.00125

1.72x10-8

7.3x10^-4

1.09x10-9

4.62x10^-4

19.0

1.57x10-8

6.67x10^-4

1.17x10-⁸

4.96x10^-4

6.84x10-9

2.91x10^-4

4.32x10-10

1.84x10^-4

20.0

6.25x10-9

2.66x10^-4

4.63x10-⁹

1.97x10^-4

2.73x10-9

1.16x10^-4

1.72x10-10

7.32x10^-5

21.0

2.49x10-9

1.06x10^-4

1.85x10-⁹

7.86x10^-5

1.08x10-9

4.61x10^-5

6.88x10-11

2.93x10^-5

22.0

9.89x10-10

4.21x10^-5

7.36x10-¹⁰

3.13x10^-5

4.30x10-10

1.83x10^-5

2.73x10-11

1.16x10^-5

23.0

3.95x10-10

1.68x10^-5

2.94x10-¹⁰

1.25x10^-5

1.72x10-10

7.3x10^-6

1.09x10-11

4.62x10^-6

24.0

1.57x10-10

6.67x10^-6

1.17x10-¹⁰

4.96x10^-6

6.84x10-11

2.91x10^-6

4.32x10-12

1.84x10^-6

25.0

6.25x10-11

2.66x10^-6

4.63x10-¹¹

1.97x10^-6

2.73x10-11

1.16x10^-6

1.72x10-12

7.32x10^-7

26.0

2.49x10-11

1.06x10^-6

1.85x10-¹¹

7.86x10^-7

1.08x10-11

4.61x10^-7

6.88x10-13

2.93x10^-7

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