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J/ApJS/123/377 u*g*r*i*z* Photometry of stars, galaxies, QSOs (Newberg+ 1999)
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Catalog of four-color photometry of stars, galaxies, and QSOs using SDSS filters
Newberg H.J., Richards G.T., Richmond M., Fan X.
<Astrophys. J. Suppl. Ser. 123, 377 (1999)>
=1999ApJS..123..377N
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ADC_Keywords: Photometry, ugriz ; Galaxies, photometry ; QSOs
Keywords: catalogs - galaxies: photometry - quasars: general -
stars: fundamental parameters - techniques: photometric
Description:
The catalog (table 5 of the paper) contains the measurements of 2262
sources, including 334 extended sources, 1915 point sources, and 13
known QSOs, in five passbands close to the u'g'r'i'z' passbands of
SDSS (see the definition of the photometric system in Richards et al.,
1997PASP..109...39R). Of these objects, over 1600 are measured in 15
fields covering 0.5deg^2^, with a limiting magnitude of r*<19.5,
similar to the photometric limit of the SDSS spectroscopic survey.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 136 2261 Catalog of u* g* r* i* z* photometry
(Richards et al., 1997PASP..109...39R)
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Table 3: Standard stars
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Name Nobs u* g* r* i* z*
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SA 92-342 3 12.920 0.011 11.817 0.012 11.546 0.006 11.518 0.009 11.528 0.010
SA 94-242 10 12.981 0.028 11.777 0.014 11.651 0.018 11.682 0.020 11.732 0.013
SA 94-251 10 14.521 0.031 11.739 0.013 10.742 0.014 10.367 0.013 10.163 0.017
Hilt 404 2 12.564 0.004 11.513 0.005 10.829 0.010 10.506 0.026 10.252 0.006
SA 95-149 4 14.914 0.042 11.653 0.016 10.311 0.029 9.687 0.013 9.301 0.023
SA 98-685 3 13.335 0.009 12.087 0.030 11.786 0.011 11.728 0.008 11.696 0.005
RU 149D 5 12.050 0.040 11.391 0.040 11.574 0.033 11.801 0.037 11.921 0.038
RU 149G 5 14.332 0.016 13.133 0.033 12.750 0.030 12.663 0.019 12.640 0.012
Feige 34 3 10.421 0.046 10.960 0.020 11.443 0.036 11.797 0.050 12.044 0.038
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Field Field name
17- 20 A4 --- --- [NRRF] (Newberg+Richards+Richmond+Fan)
22- 37 A16 --- NRRF Designation (Newberg+Richards+Richmond+Fan)
39- 40 I2 h RAh Right ascension (2000.0)
42- 43 I2 min RAm Right ascension (2000.0)
45- 49 F5.2 s RAs Right ascension (2000.0)
51 A1 --- DE- Declination sign (2000.0)
52- 53 I2 deg DEd Declination (2000.0)
55- 56 I2 arcmin DEm Declination (2000.0)
58- 59 I2 arcsec DEs Declination (2000.0)
62- 67 F6.3 mag r*mag ? r* magnitude
69- 73 F5.3 mag e_r*mag ? rms uncertainty on r*mag
75- 80 F6.3 mag u*-g* ? u*-g* colour index
83- 87 F5.3 mag e_u*-g* ? rms uncertainty on u*-g*
89- 94 F6.3 mag g*-r* ? g*-r* colour index
98-102 F5.3 mag e_g*-r* ? rms uncertainty on g*-r*
104-109 F6.3 mag r*-i* ? r*-i* colour index
112-116 F5.3 mag e_r*-i* ? rms uncertainty on r*-i*
118-123 F6.3 mag i*-z* ? i*-z* colour index
126-130 F5.3 mag e_i*-z* ? rms uncertainty on i*-z*
132-133 A2 --- Type [sgq ] Type of source (1)
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Note (1): the following symbols are used:
s or ss: point source
g: extended source
q: known QSOs
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Table 6: QSO magnitudes
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QSO z Nobs r* u*-g* g*-r* r*-i* i*-z*
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[HB89] 0836+710 2.172 1 16.772 0.269 0.156 0.088 0.190
[HB89] 0933+733 2.528 1 17.188 0.834 0.118 0.187 0.302
[HB89] 0953+549 2.579 1 17.414 0.617 0.092 -0.002 0.202
UM 673 2.719 1 16.521 0.596 0.181 -0.006 -0.006
[HB89] 0308+190 2.756 1 18.165 1.034 0.135 0.061 0.254
[HB89] 0207-003 2.853 1 17.107 0.956 0.168 0.130 0.091
[HB89] 0201+365 2.912 1 17.975 1.340 0.387 0.175 0.051
[HB89] 0216+080 2.996 2 18.084 1.572 0.256 -0.032 0.184
LBQS 2231-0015 3.020 4 17.350 1.484 0.312 0.104 0.114
[HB89] 0731+653 3.038 1 18.120 1.953 0.170 0.033 0.056
[HB89] 0636+680 3.178 1 16.533 2.059 0.388 0.239 0.165
LBQS 0256-0000 3.374 1 17.626 3.026 0.357 -0.037 -0.067
[HB89] 0642+449 3.408 3 18.624 >2.500 0.446 0.124 0.124
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Note: The magnitudes for LBQS 2231-0015, [HB89] 0216+080, and [HB89] 0642+449
are the averages of 4, 2, and 3 separate measurements, respectively.
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History: From ApJS electronic version
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(End) James Marcout, Patricia Bauer [CDS] 20-Jan-2000