II/85 Absolute Calibration of Stellar Spectrophotometry (Johnson 1980)
Absolute Calibration of Stellar Spectrophotometry
Johnson H.L.
<Rev. Mex. Astron. Astrofis. 5, 25 (1980)>
=1980RMxAA...5...25J 1980RMxAA...5...25J
ADC_Keywords: Spectrophotometry
Description:
The catalog contains the absolute fluxes for 16 stars published in
Tables 1 and 2 of Johnson (1980). The absolute calibrations were
accomplished by combining the 13-color photometry calibrations of
Johnson and Mitchell (1975) with spectra obtained with a Michelson
spectrophotometer and covering the wavelength range 4000 to 10300
Angstroms (Johnson 1977). The agreement between the absolute
calibration and another recent one based upon data for alpha Lyr and
109 Vir by Tug et al. (1977) is shown (Johnson 1980) to be quite good.
The catalog includes star name, cross identifications to the numbering
systems of the Bright Star Catalogue and The Henry Draper Catalogue
and arrays of fluxes having the same number of elements for each of
the 16 stars.
Objects:
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RA (2000) DE Designation(s) (SpT)
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02 56 37.5 -03 42 42 HR 875 = HD 18331 (A1V)
05 31 55.8 -07 18 05 HR 1855 = HD 36512 = ups Ori (B0V)
06 45 10.8 -16 41 58 HR 2491 = HD 48915 = alf CMa (A1V)
08 25 39.8 -03 54 22 HR 3314 = HD 71155 (A0V)
11 49 05.2 +14 34 25 HR 4534 = HD 102647 = bet Leo (A3V)
12 15 48.9 -17 32 32 HR 4662 = HD 106625 = gam Crv (B8III)
13 06 54.7 -49 54 21 HR 4942 = HD 113791 = xi2 Cet (B1.5V)
14 46 15.2 +01 53 36 HR 5511 = HD 130109 = 109 Vir (A0V)
15 17 00.7 -09 22 57 HR 5685 = HD 135742 = bet Lib (B8V)
17 47 53.5 +02 42 30 HR 6629 = HD 161868 = gam Oph (A0V)
18 36 55.4 +38 46 47 HR 7001 = HD 172167 = alf Lyr (A0V)
19 05 24.5 +13 51 53 HR 7235 = HD 177724 = zet Aql (A0V)
20 39 38.0 +15 54 43 HR 7906 = HD 196867 = alf Del (B9IV)
22 39 15.6 +39 03 01 HR 8622 = HD 214680 = 10 Lac (O9V)
22 41 27.4 +10 49 53 HR 8634 = HD 214923 = zet Peg (B8V)
23 04 45.4 +15 12 21 HR 8781 = HD 218045 = alf Peg (B9III)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 149 94 The Absolute fluxes of 16 stars
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Byte-per-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 5 I5 0.1nm lambda Wavelength
6- 14 E9.3 mW/m2/Hz F01 Flux for HR 7906 = HD 196867 = alf Del
15- 23 E9.3 mW/m2/Hz F02 Flux for HR 5685 = HD 135742 = bet Lib
24- 32 E9.3 mW/m2/Hz F03 Flux for HR 4662 = HD 106625 = gam Crv
33- 41 E9.3 mW/m2/Hz F04 Flux for HR 6629 = HD 161868 = gam Oph
42- 50 E9.3 mW/m2/Hz F05 Flux for HR 4942 = HD 113791 = xi2 Cet
51- 59 E9.3 mW/m2/Hz F06 Flux for HR 7235 = HD 177724 = zet Aql
60- 68 E9.3 mW/m2/Hz F07 Flux for HR 875 = HD 18331
69- 77 E9.3 mW/m2/Hz F08 Flux for HR 3314 = HD 71155
78- 86 E9.3 mW/m2/Hz F09 Flux for HR 2491 = HD 48915 = alf CMa
87- 95 E9.3 mW/m2/Hz F10 Flux for HR 7001 = HD 172167 = alf Lyr
96-104 E9.3 mW/m2/Hz F11 Flux for HR 8781 = HD 218045 = alf Peg
105-113 E9.3 mW/m2/Hz F12 Flux for HR 4534 = HD 102647 = bet Leo
114-122 E9.3 mW/m2/Hz F13 Flux for HR 1855 = HD 36512 = ups Ori
123-131 E9.3 mW/m2/Hz F14 Flux for HR 8622 = HD 214680 = 10 Lac
132-140 E9.3 mW/m2/Hz F15 Flux for HR 5511 = HD 130109 = 109 Vir
141-149 E9.3 mW/m2/Hz F16 Flux for HR 8634 = HD 214923 = zet Peg
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History:
The file was reformatted at CDS in 17 columns, one for the wavelength,
and one for each star.
The Description was added by Gail L. Schneider [SSDOO/ADC].
The positions and spectral types of the stars were added by
F. Ochsenbein [CDS]
References:
Johnson, H.L. 1977, Rev. Mex. Astron. Astrofis. 2, 219
Johnson, H.L., and Mitchell, R.I. 1975, Rev. Mex. Astron. Astrofis., 1, 299
[1975RMxAA...1..299J 1975RMxAA...1..299J]
Tug, H., White, N.M., and Lockwood, G.W. 1977, A&A, 61, 679
[1977A&A....61..679T 1977A&A....61..679T]
(End) Francois Ochsenbein [CDS] 29-Apr-1997