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J/ApJ/791/88        C IV BAL troughs properties in quasars        (Filiz+, 2014)

The dependence of C IV broad absorption line properties on accompanying Si IV and Al III absorption: relating quasar-wind ionization levels, kinematics, and column densities. Filiz Ak N., Brandt W.N., Hall P.B., Schneider D.P., Trump J.R., Anderson S.F., Hamann F., Myers A.D., Paris I., Petitjean P., Ross N.P., Shen Y., York D. <Astrophys. J., 791, 88 (2014)> =2014ApJ...791...88F (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; Spectroscopy ; Equivalent widths Keywords: quasars: absorption lines Abstract: We consider how the profile and multi-year variability properties of a large sample of C IV Broad Absorption Line (BAL) troughs change when BALs from Si IV and/or Al III are present at corresponding velocities, indicating that the line of sight intercepts at least some lower ionization gas. We derive a number of observational results for C IV BALs separated according to the presence or absence of accompanying lower ionization transitions, including measurements of composite profile shapes, equivalent width (EW), characteristic velocities, composite variation profiles, and EW variability. We also measure the correlations between EW and fractional-EW variability for C IV, Si IV, and Al III. Our measurements reveal the basic correlated changes between ionization level, kinematics, and column density expected in accretion-disk wind models; e.g., lines of sight including lower ionization material generally show deeper and broader C IV troughs that have smaller minimum velocities and that are less variable. Many C IV BALs with no accompanying Si IV or Al III BALs may have only mild or no saturation. Description: We utilize spectroscopic observations from the Sloan Digital Sky Survey-I/II (hereafter SDSS, York et al. 2000AJ....120.1579Y) and the Baryon Oscillation Spectroscopic Survey of SDSS-III (hereafter BOSS; Eisenstein et al. 2011AJ....142...72E; Dawson et al. 2013AJ....145...10D). We select a sample of quasars for this study from these 2005 targets that were observed by SDSS between MJD 51,602 (2000 February 28) and 54,557 (2008 January 4) and by BOSS between MJD 55,176 (2009 December 11) and 56,455 (2013 June 12). Observation start dates correspond to completion of hardware commissioning for both SDSS and BOSS; post-commissioning observations have the most reliable spectral calibration. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 148 671 Main-Sample BAL Quasars table2.dat 125 113 C IV00 Troughs table3.dat 246 246 C IVS0 Troughs table4.dat 363 95 C IVSA Troughs table5.dat 125 271 C IVs0 Troughs table6.dat 125 32 C IVsa Troughs table7.dat 125 94 C IVSa Troughs
See also: J/MNRAS/449/1593 : CIV absorption in BAL QSOs (Baskin+, 2015) J/MNRAS/454/3962 : 188 CIV BAL QSOs from SDSS DR7 (He+, 2015) J/ApJ/824/130 : SDSS/BOSS/TDSS CIV BAL quasars (Grier+, 2016) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 A4 --- ID Quasar identifier (QNNN) 6- 9 A4 --- --- [SDSS] 10- 28 A19 --- SDSS Quasar SDSS identifier (JHHMMSS.ss+DDMMSS.s) 30- 38 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000) 40- 47 F8.5 deg DEdeg Declination in decimal degrees (J2000) 49- 56 F8.6 --- z Redshift 58- 64 F7.5 --- e_z The 1σ uncertainty in z 66- 71 F6.2 mag iMag Absolute i band magnitude for z = 2 73- 76 I4 --- Plate1 First epoch SDSS plate identifier 78- 82 I5 d MJD1 Modified Julian Date of first epoch observation 84- 86 I3 --- Fiber1 First epoch SDSS fiber identifier 88- 96 F9.6 --- SN1 First epoch average Signal-to-Noise (1) 98-101 I4 --- Plate2 Second epoch SDSS plate identifier 103-107 I5 d MJD2 Modified Julian Date of second epoch observation 109-112 I4 --- Fiber2 Second epoch SDSS fiber identifier 114-122 F9.6 --- SN2 Second epoch average Signal-to-Noise (1) 124-128 I5 km/s BI1 First epoch modified "balnicity" (2) 130-132 I3 km/s e_BI1 The 1σ uncertainty in BI1 134-138 I5 km/s BI2 Second epoch modified "balnicity" (2) 140-142 I3 km/s e_BI2 The 1σ uncertainty in BI2 144-148 F5.3 yr Delt Rest-frame timescale
Note (1): in a 4 Angstrom, resolution element within 1650-1750 Angstroms. Note (2): Where a=3 and b=0; see Equation 1.
Byte-by-byte Description of file: table2.dat table5.dat table6.dat table7.dat
Bytes Format Units Label Explanations
1- 4 A4 --- ID Quasar identifier (QNNN) 6- 12 A7 --- CIV C IV trough identifier (1) 14- 21 F8.1 km/s vmax Maximum velocity 23- 30 F8.1 km/s vmin Minimum velocity 32- 38 F7.1 km/s Delv Velocity width 40- 47 F8.1 km/s vcen1 First epoch weighted centroid velocity (G1) 49- 56 F8.1 km/s vcen2 Second epoch weighted centroid velocity (G1) 58- 62 F5.3 --- dBAL1 First epoch average depth 64- 68 F5.3 --- e_dBAL1 The 1σ uncertainty in dBAL1 70- 74 F5.3 --- dBAL2 Second epoch average depth 76- 80 F5.3 --- e_dBAL2 The 1σ uncertainty in dBAL2 82- 86 F5.2 0.1nm EQ1 First epoch equivalent width (G1) 88- 91 F4.2 0.1nm e_EQ1 The 1σ uncertainty in EQ1 93- 97 F5.2 0.1nm EQ2 Second epoch equivalent width (G1) 99-102 F4.2 0.1nm e_EQ2 The 1σ uncertainty in EQ2 104-109 F6.2 0.1nm DelEW Equivalent width variation 111-114 F4.2 0.1nm e_DelEW The 1σ uncertainty in DelEW 116-120 F5.2 --- Ratio Fractional equivalent variation (2) 122-125 F4.2 --- e_Ratio The 1σ uncertainty in Ratio
Note (1): Trough identifier of : table2 : C IV00 (C00-NNN) table5 : C IVs0 (Cs0-NNN) table6 : C IVsa (Csa-NN) table7 : C IVSa (CSa-NN) Note (2): Where DelEW=ΔEW/<EW>.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 4 A4 --- ID Quasar identifier (QNNN) 6- 12 A7 --- CIV C IVS0 trough identifier 14- 21 F8.1 km/s vmaxC C IVS0 Maximum velocity 23- 30 F8.1 km/s vminC C IVS0 Minimum velocity 32- 38 F7.1 km/s DelvC C IVS0 Velocity width 40- 47 F8.1 km/s vcen1C First epoch C IVS0 weighted centroid 49- 56 F8.1 km/s vcen2C Second epoch C IVS0 weighted centroid velocity (G1) 58- 62 F5.3 --- dBAL1C First epoch C IVS0 average depth 64- 68 F5.3 --- e_dBAL1C The 1σ uncertainty in dBAL1C 70- 74 F5.3 --- dBAL2C Second epoch C IVS0 average depth 76- 80 F5.3 --- e_dBAL2C The 1σ uncertainty in dBAL2C 82- 86 F5.2 0.1nm EQ1C First epoch C IVS0 equivalent width (G1) 88- 91 F4.2 0.1nm e_EQ1C The 1σ uncertainty in EQ1C 93- 97 F5.2 0.1nm EQ2C Second epoch C IVS0 equivalent width (G1) 99-102 F4.2 0.1nm e_EQ2C The 1σ uncertainty in EQ2C 104-109 F6.2 0.1nm DelEWC C IVS0 equivalent width variation 111-114 F4.2 0.1nm e_DelEWC The 1σ uncertainty in DelEWC 116-120 F5.2 --- RatioC Fractional C IVS0 equivalent variation (2) 122-125 F4.2 --- e_RatioC The 1σ uncertainty in RatioC 127-133 A7 --- SiIV Si IVS0 trough identifier 135-142 F8.1 km/s vmaxS Si IVS0 Maximum velocity 144-151 F8.1 km/s vminS Si IVS0 Minimum velocity 153-159 F7.1 km/s DelvS Si IVS0 Velocity width 161-168 F8.1 km/s vcen1S First epoch Si IVS0 weighted centroid velocity (G1) 170-177 F8.1 km/s vcen2S Second epoch Si IVS0 weighted centroid velocity (G1) 179-183 F5.3 --- dBAL1S First epoch Si IVS0 average depth 185-189 F5.3 --- e_dBAL1S The 1σ uncertainty in dBAL1S 191-195 F5.3 --- dBAL2S Second epoch Si IVS0 average depth 197-201 F5.3 --- e_dBAL2S The 1σ uncertainty in dBAL2S 203-207 F5.2 0.1nm EQ1S First epoch Si IVS0 equivalent width (G1) 209-212 F4.2 0.1nm e_EQ1S The 1σ uncertainty in EQ1S 214-218 F5.2 0.1nm EQ2S Second epoch Si IVS0 equivalent width (G1) 220-223 F4.2 0.1nm e_EQ2S The 1σ uncertainty in EQ2S 225-230 F6.2 0.1nm DelEWS Si IVS0 equivalent width variation 232-235 F4.2 0.1nm e_DelEWS The 1σ uncertainty in DelEWS 237-241 F5.2 --- RatioS Fractional Si IVS0 equivalent variation (2) 243-246 F4.2 --- e_RatioS The 1σ uncertainty in RatioS
Note (2): Where DelEW = ΔEW/<EW> of C IVSO or Si IVSO.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 4 A4 --- ID Quasar identifier (QNNN) 6- 11 A6 --- CIV C IVSA trough identifier 13- 20 F8.1 km/s vmaxC C IVSA Maximum velocity 22- 29 F8.1 km/s vminC C IVSA Minimum velocity 31- 37 F7.1 km/s DelvC C IVSA Velocity width 39- 46 F8.1 km/s vcen1C First epoch C IVSA weighted centroid velocity (G1) 48- 55 F8.1 km/s vcen2C Second epoch C IVSA weighted centroid velocity (G1) 57- 61 F5.3 --- dBAL1C First epoch C IVSA average depth 63- 67 F5.3 --- e_dBAL1C The 1σ uncertainty in dBAL1C 69- 73 F5.3 --- dBAL2C Second epoch C IVSA average depth 75- 79 F5.3 --- e_dBAL2C The 1σ uncertainty in dBAL2C 81- 85 F5.2 0.1nm EQ1C First epoch C IVSA equivalent width (G1) 87- 90 F4.2 0.1nm e_EQ1C The 1σ uncertainty in EQ1C 92- 96 F5.2 0.1nm EQ2C Second epoch C IVSA equivalent width (G1) 98-101 F4.2 0.1nm e_EQ2C The 1σ uncertainty in EQ2C 103-108 F6.2 0.1nm DelEWC C IVSA equivalent width variation 110-113 F4.2 0.1nm e_DelEWC The 1σ uncertainty in DelEWC 115-119 F5.2 --- RatioC Fractional C IVSA equivalent variation (2) 121-124 F4.2 --- e_RatioC The 1σ uncertainty in RatioC 126-131 A6 --- SiIV Si IVSA trough identifier 133-140 F8.1 km/s vmaxS Si IVSA Maximum velocity 142-149 F8.1 km/s vminS Si IVSA Minimum velocity 151-157 F7.1 km/s DelvS Si IVSA Velocity width 159-166 F8.1 km/s vcen1S First epoch Si IVSA weighted centroid velocity (G1) 168-175 F8.1 km/s vcen2S Second epoch Si IVSA weighted centroid velocity (G1) 177-181 F5.3 --- dBAL1S First epoch Si IVSA average depth 183-187 F5.3 --- e_dBAL1S The 1σ uncertainty in dBAL1S 189-193 F5.3 --- dBAL2S Second epoch Si IVSA average depth 195-199 F5.3 --- e_dBAL2S The 1σ uncertainty in dBAL2S 201-205 F5.2 0.1nm EQ1S First epoch Si IVSA equivalent width (G1) 207-210 F4.2 0.1nm e_EQ1S The 1σ uncertainty in EQ1S 212-216 F5.2 0.1nm EQ2S Second epoch Si IVSA equivalent width (G1) 218-221 F4.2 0.1nm e_EQ2S The 1σ uncertainty in EQ2S 223-228 F6.2 0.1nm DelEWS Si IVSA equivalent width variation 230-233 F4.2 0.1nm e_DelEWS The 1σ uncertainty in DelEWS 235-239 F5.2 --- RatioS Fractional Si IVSA equivalent variation (2) 241-244 F4.2 --- e_RatioS The 1σ uncertainty in RatioS 246-251 A6 --- AiIV Al IIISA trough identifier 253-260 F8.1 km/s vmaxA Al IIISA Maximum velocity 262-269 F8.1 km/s vminA Al IIISA Minimum velocity 271-277 F7.1 km/s DelvA Al IIISA Velocity width 279-286 F8.1 km/s vcen1A First epoch Al IIISA weighted centroid velocity (G1) 288-295 F8.1 km/s vcen2A Second epoch Al IIISA weighted centroid velocity (G1) 297-301 F5.3 --- dBAL1A First epoch Al IIISA average depth 303-307 F5.3 --- e_dBAL1A The 1σ uncertainty in dBAL1A 309-313 F5.3 --- dBAL2A Second epoch Al IIISA average depth 315-319 F5.3 --- e_dBAL2A The 1σ uncertainty in dBAL2A 321-325 F5.2 0.1nm EQ1A First epoch Al IIISA equivalent width (G1) 327-330 F4.2 0.1nm e_EQ1A The 1σ uncertainty in EQ1A 332-336 F5.2 0.1nm EQ2A Second epoch Al IIISA equivalent width (G1) 338-341 F4.2 0.1nm e_EQ2A The 1σ uncertainty in EQ2A 343-347 F5.2 0.1nm DelEWA Al IIISA equivalent width variation 349-352 F4.2 0.1nm e_DelEWA The 1σ uncertainty in DelEWA 354-358 F5.2 --- RatioA Fractional Al IIISA equivalent variation (2) 360-363 F4.2 --- e_RatioA The 1σ uncertainty in RatioA
Note (2): Where DelEW = ΔEW/<EW> of C IVSA, Si IVSA, or Al IIISA.
Global notes: Note (G1): Which is the mean velocity where each data point is weighted with its distance from the normalized continuum level. Units are Angstroms.
History: From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 29-Mar-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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