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Table 4

DR9Q catalog format.

Column  Name Format Descriptiona
1 SDSS_NAME A19 SDSS-DR9 designation hhmmss.ss+ddmmss.s (J2000)
2 RA F11.6 Right Ascension in decimal degrees (J2000)
3 DEC F11.6 Declination in decimal degrees (J2000)
4 THING_ID I10 Thing_ID
5 PLATE I5 Spectroscopic Plate number
6 MJD I6 Spectroscopic MJD
7 FIBERID I5 Spectroscopic Fiber number
8 Z_VI F9.4 Redshift from visual inspection
9 Z_PIPE F9.4 Redshift from BOSS pipeline
10 ERR_ZPIPE F9.4 Error on BOSS pipeline redshift
11 ZWARNING I4 ZWARNING flag
12 Z_PCA F9.4 Refined PCA redshift
13 ERR_ZPCA F9.4 Error on refined PCA redshift
14 PCA_QUAL F9.4 Estimator of the PCA continuum quality
15 Z_CIV F9.4 Redshift of C iv emission line
16 Z_CIII F9.4 Redshift of C iii] emission complex
17 Z_MGII F9.4 Redshift of Mg ii emission line
18 SDSS_MORPHO I2 SDSS morphology flag 0 = point source 1 = extended
19 BOSS_TARGET1 I20 BOSS target flag for main survey
20 ANCILLARY_TARGET1 I20 BOSS target flag for ancillary programs
21 ANCILLARY_TARGET2 I20 BOSS target flag for ancillary programs
22 SDSS_DR7 I2 1 if the quasar is known from DR7
23 PLATE_DR7 I5 SDSS-DR7 spectroscopic Plate number if the quasar is known from DR7
24 MJD_DR7 I6 SDSS-DR7 spectroscopic MJD if the quasar is known from DR7
25 FIBERID_DR7 I4 SDSS-FR7 spectroscopic Fiber number if the quasar is known from DR7
26 UNIFORM I2 Uniform sample flag
27 MI F9.4
28 DGMI F9.4 Δ(g − i) = (g − i) − ⟨ (g − i) ⟩ redshift (Galactic extinction corrected)
29 ALPHA_NU F9.4 Spectral index measurement αν
30 SNR_SPEC F9.4 Median S/N over the whole spectrum
31 SNR_1700 F9.4 Median S/N in the window 1650–1750 Å (rest frame)
32 SNR_3000 F9.4 Median S/N in the window 2950–3050 Å (rest frame)
33 SNR_5150 F9.4 Median S/N in the window 5100–5250 Å (rest frame)
34 FWHM_CIV F9.4 FWHM of C iv emission line in km s-1
35 BHWHM_CIV F9.4 Blue HWHM of C iv emission line in km s-1
36 RHWHM_CIV F9.4 Red HWHM of C iv emission line in km s-1
37 AMP_CIV F9.4 Amplitude of C iv emission line in units of median rms pixel noise
38 REWE_CIV F9.4 Rest frame equivalent width of C iv emission line in Å
39 ERR_REWE_CIV F9.4 Uncertainty on the rest frame equivalent width of C iv emission line in Å
40 FWHM_CIII F9.4 FWHM of C iii] emission complex in km s-1
41 BHWHM_CIII F9.4 Blue HWHM of C iii] emission line in km s-1
42 RHWHM_CIII F9.4 Red HWHM of C iii] emission line in km s-1
43 AMP_CIII F9.4 Amplitude of C iii] emission complex in units of median rms pixel noise
44 REWE_CIII F9.4 Rest frame equivalent width of C iii] emission line in Å
45 ERR_REWE_CIII F9.4 Uncertainty on the rest frame equivalent width of C iii] emission complex in Å
46 FWHM_MGII F9.4 FWHM of Mg ii emission line in km s-1
47 BHWHM_MGII F9.4 Blue HWHM of Mg ii emission line in km s-1
48 RHWHM_MGII F9.4 Red HWHM of Mg ii emission line in km s-1
49 AMP_MGII F9.4 Amplitude of Mg ii emission line in units of median rms pixel noise
50 REWE_MGII F9.4 Rest frame equivalent width of Mg ii emission line in Å
51 ERR_REWE_MGII F9.4 Uncertainty on the rest frame equivalent width of Mg ii emission in Å
52 BAL_FLAG_VI I2 BAL flag from visual inspection
53 BI_CIV F9.4 Balnicity index of C iv trough in km s-1
54 ERR_BI_CIV F9.4 Error on the balnicity index of C iv trough in km s-1
55 AI_CIV F9.4 Absorption index of C iv trough in km s-1
56 ERR_AI_CIV F9.4 Error on the absorption index of C iv trough in km s-1
57 DI_CIV F9.4 Detection index of C iv trough in km s-1
58 ERR_DI_CIV F9.4 Error on the detection index of C iv trough in km s-1
59 CHI2THROUGH F9.4 χ2 of the trough from Eq. (3)
60 NCIV_2000 I3 Number of distinct C iv troughs of width larger than 2000 km s-1
61 VMIN_CIV_2000 F9.4 Minimum velocity of the C iv troughs defined in row 60 km s-1
62 VMAX_CIV_2000 F9.4 Maximum velocity of the C iv troughs defined in row 60 in km s-1
63 NCIV_450 I3 Number of distinct C iv troughs of width larger than 450 km s-1
64 VMIN_CIV_450 F9.4 Minimum velocity of the C iv troughs defined in row 63 in km s-1
65 VMAX_CIV_450 F9.4 Maximum velocity of the C iv troughs defined in row 63 in km s-1
66 REW_SIIV F9.4 rest frame equivalent width of the Si iv trough
67 REW_CIV F9.4 rest frame equivalent width of the C iv trough
68 REW_ALIII F9.4 rest frame equivalent width of the Al iii trough
69 RUN_NUMBER I6 SDSS imaging run number of photometric measurements
70 PHOTO_MJD I6 Modified Julian date of imaging observation
71 RERUN_NUMBER A4 SDSS photometric processing rerun number
72 COL_NUMBER I2 SDSS camera column number (1–6)
73 FIELD_NUMBER I5 SDSS field number
74 OBJ_ID A20 SDSS object identification number
75 UFLUX F9.4 flux in the u-band (not corrected for Galactic extinction)
76 ERR_UFLUX F9.4 Error in u flux
77 GFLUX F9.4 flux in the g-band (not corrected for Galactic extinction)
78 ERR_GFLUX F9.4 Error in g flux
79 RFLUX F9.4 flux in the r-band (not corrected for Galactic extinction)
80 ERR_RFLUX F9.4 Error in r flux
81 IFLUX F9.4 flux in the i-band (not corrected for Galactic extinction)
82 ERR_IFLUX F9.4 Error in i flux
83 ZFLUX F9.4 flux in the z-band (not corrected for Galactic extinction)
84 ERR_ZFLUX F9.4 Error in z flux
85 TARGET_UFLUX F9.4 TARGET flux in the u-band (not corrected for galactic extinction)
86 TARGET_GFLUX F9.4 TARGET flux in the g-band (not corrected for galactic extinction)
87 TARGET_RFLUX F9.4 TARGET flux in the r-band (not corrected for galactic extinction)
88 TARGET_IFLUX F9.4 TARGET flux in the i-band (not corrected for galactic extinction)
89 TARGET_ZFLUX F9.4 TARGET flux in the z-band (not corrected for galactic extinction)
90 U_EXT F9.4 u band Galactic extinction (from (Schlegel et al. 1998))
91 HI_GAL F9.4 log NH (logarithm of Galactic H i column density in cm-2)
92 RASS_COUNTS F9.4 log RASS full band count rate (counts s-1)
93 RASS_COUNTS_SNR F9.4 S/N of the RASS count rate
94 SDSS2ROSAT_SEP F9.4 SDSS-RASS separation in arcsec
95 NUVFLUX F9.4 nuv flux (GALEX)
96 ERR_NUVFLUX F9.4 Error in nuv flux
97 FUVFLUX F9.4 fuv flux (GALEX)
98 ERR_FUVFLUX F9.4 Error in fuv flux
99 JMAG F9.4 J magnitude (Vega, 2MASS)
100 ERR_JMAG F9.4 Error in J magnitude
101 JSNR F9.4 J-band S/N
102 JRDFLAG I2 J-band photometry flag
103 HMAG F9.4 H magnitude (Vega, 2MASS)
104 ERR_HMAG F9.4 Error in H magnitude
105 HSNR F9.4 H-band S/N
106 HRDFLAG I2 H-band photometry flag
107 KMAG F10.6 K magnitude (Vega, 2MASS)
108 ERR_KMAG F10.6 Error in K magnitude
109 KSNR F10.6 K-band S/N
110 KRDFLAG I2 K-band photometry flag
111 SDSS2MASS_SEP F10.6 SDSS-2MASS separation in arcsec
112 W1MAG F10.6 w1 magnitude (Vega, WISE)
113 ERR_W1MAG F10.6 Error in w1 magnitude
114 W1SNR F10.6 S/N in w1 band
115 W1CHI2 F10.6 χ2 in w1 band
116 W2MAG F10.6 w2 magnitude (Vega, WISE)
117 ERR_W2MAG F10.6 Error in w2 magnitude
118 W2SNR F10.6 S/N in w1 band
119 W2CHI2 F10.6 χ2 in w1 band
120 W3MAG F10.6 w3 magnitude (Vega, WISE)
121 ERR_W3MAG F10.6 Error in w3 magnitude
122 W3SNR F10.6 S/N in w1 band
123 W3CHI2 F10.6 χ2 in w1 band
124 W4MAG F10.6 w4 magnitude (Vega, WISE)
125 ERR_W4MAG F10.6 Error in w4 magnitude
126 W4SNR F10.6 S/N in w1 band
127 W4CHI2 F10.6 χ2 in w1 band
128 SDSS2WISE_SEP F10.6 SDSS-WISE separation in arcsec
129 FIRST_FLUX F10.6 FIRST peak flux density at 20 cm expressed in mJy
130 FIRST_SNR F10.6 S/N of the FIRST flux density
131 SDSS2FIRST_SEP F10.6 SDSS-FIRST separation in arcsec

Notes. 

(a)

All magnitudes are PSF magnitudes.

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