2009MNRAS.400.1493K


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.14CEST14:19:25

2009MNRAS.400.1493K - Mon. Not. R. Astron. Soc., 400, 1493-1511 (2009/December-2)

Probing re-ionization with quasar spectra: the impact of the intrinsic Lyman α emission line shape uncertainty.

KRAMER R.H. and HAIMAN Z.

Abstract (from CDS):

Arguably the best hope of understanding the tail end of the re-ionization of the intergalactic medium (IGM) at redshift z > 6 is through the detection and characterization of the Gunn-Peterson damping wing absorption of the IGM in bright quasar spectra. However, the use of quasar spectra to measure the IGM damping wing requires a model of the quasar's intrinsic Lyman α emission line. Here we quantify the uncertainties in the intrinsic line shapes, and how those uncertainties affect the determination of the IGM neutral fraction. We have assembled a catalogue of high-resolution Hubble Space Telescope spectra of the emission lines of unobscured low-redshift quasars, and have characterized the variance in the shapes of their lines. We then add simulated absorption from the high-redshift IGM to these quasar spectra in order to determine the corresponding uncertainties in re-ionization constraints using current and future samples of z > 6 quasar spectra. We find that, if the redshift of the Lyman α emission line is presumed to coincide with the systemic redshift determined from metal lines, the inferred IGM neutral fraction is systematically biased to low values due to a systematic blueshift of the Lyman α line relative to the metal lines. If a similar blueshift persists in quasars at z > 6, this bias strengthens previous claims of a significant neutral hydrogen fraction at z ~ 6. The bias can be reduced by including a Lyman α blueshift in the modelling procedure, or by excising wavelengths near the Lyman α line centre from the modelling. Intrinsic Lyman α line shape variations still induce significant scatter in the inferred xIGMvalues. Nevertheless, this scatter still allows a robust distinction between a highly ionized (xIGM∼ 10–3) and a neutral (xIGM= 1) IGM with even a few bright quasars. We conclude that if the variations of the intrinsic Lyman α emission line shapes in high-z quasars are similar to those at low-z, this variation will not limit the usefulness of quasar spectra in probing re-ionization.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): quasars: absorption lines - quasars: emission lines - quasars: general - cosmology: observations - cosmology: theory - ultraviolet: general

VizieR on-line data: <Available at CDS (J/MNRAS/400/1493): table1.dat table3.dat table4.dat>

Simbad objects: 113

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Number of rows : 113

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 2E 12 Sy1 00 05 59.2379634379 +16 09 49.023089304   16.51 16.40     ~ 269 1
2 Mrk 335 Sy1 00 06 19.5371542746 +20 12 10.617456059   14.19 13.85     ~ 1129 0
3 QSO B0015+162 QSO 00 18 32.008 +16 29 25.81   19 18.26 18.40   ~ 38 0
4 QSO J0027+2241 QSO 00 27 15.3715607 +22 41 58.067394   16.90 16.57 15.60   ~ 83 1
5 2E 93 Sy1 00 29 13.7012280721 +13 16 03.946876800   15.70 15.41     ~ 402 0
6 2E 177 Sy1 00 47 05.9186400186 +03 19 54.785770057   16.2 16.37     ~ 140 1
7 Mrk 1502 Sy1 00 53 34.9326560879 +12 41 35.927159668   14.41 14.03     ~ 1061 1
8 LBQS 0102-2713 QSO 01 04 41.0004324444 -26 57 07.384461049   17.8       ~ 28 0
9 QSO B0107-156 QSO 01 09 31.5500851297 -15 21 51.648268425     17.5     ~ 20 0
10 QSO B0117+2118 QSO 01 20 17.2644311878 +21 33 46.196835922     16.1     ~ 122 0
11 ESO 113-45 Sy1 01 23 45.7630391439 -58 48 20.811630442   14.08 13.83 13.34   ~ 788 0
12 ICRF J020157.1-113233 Sy1 02 01 57.1798202842 -11 32 33.436998341   16.54 16.40 16.073   ~ 197 1
13 4C -04.06 QSO 02 35 07.3417120791 -04 02 05.319157399   16.61 16.46 16.2   ~ 190 1
14 LBQS 0253-0138 QSO 02 56 16.5305760579 -01 26 38.217715741   17.4 17.00     ~ 33 1
15 QSO J0304-2211 QSO 03 04 49.8652189633 -22 11 51.881640769   16.43 16.40     ~ 106 0
16 2MASS J03512857-1429082 Sy1 03 51 28.5672281753 -14 29 08.258414299 15.62 16.55 16.22     ~ 178 1
17 2MASSI J0352305-071102 Sy1 03 52 30.5516917811 -07 11 02.327305580   17.02 16.67     ~ 148 1
18 QSO B0355-483 QSO 03 57 21.9182527748 -48 12 15.158750041   16.71 16.38 16.08   ~ 68 1
19 PKS 0405-123 Sy1 04 07 48.4309594137 -12 11 36.660481492   15.09 14.86 14.7   ~ 477 1
20 2E 962 Sy1 04 17 16.7842860907 -05 53 45.608565853   16.24 15.94 15.7   ~ 165 1
21 QSO J0441-4313 QSO 04 41 17.3385473794 -43 13 45.487081188   16.64 16.36 16.54 16.26 ~ 96 1
22 ICRF J045608.9-215909 Sy1 04 56 08.9237312763 -21 59 09.400417748 15.76 16.16 16.10 15.9   ~ 168 1
23 QSO B0454+0356 QSO 04 56 47.1747689004 +04 00 52.945030656   16.76 16.53 16.26   ~ 233 1
24 QSO B0624+6907 QSO 06 30 02.5049167075 +69 05 03.912553984   14.64 14.16     ~ 89 0
25 QSO J0743-6726 QSO 07 43 31.61163970 -67 26 25.5464081   16.71 16.37     ~ 139 1
26 ICRF J074541.6+314256 Sy1 07 45 41.6716759025 +31 42 56.614085210   16.10 15.97     ~ 246 1
27 QSO B0823-223 BLL 08 26 01.57293454 -22 30 27.2032544   16.11 16.20     ~ 188 1
28 2MASS J08533423+4349023 Sy1 08 53 34.2441726669 +43 49 02.333804505   17.15 16.91     ~ 92 0
29 LB 9308 Sy1 09 06 31.8733814507 +16 46 11.791988809   18.48 18.27     ~ 285 3
30 QSO B0916+512 QSO 09 19 57.6063095883 +51 06 09.546161591   16.47 16.41     ~ 55 0
31 ICRF J092703.0+390220 Sy1 09 27 03.0139516273 +39 02 20.847968628   17.17 17.00 16.486   ~ 938 1
32 QSO J0949+2955 QSO 09 49 41.1068098939 +29 55 19.260876470   16.00 16.2     ~ 142 0
33 PG 0953+414 Sy1 09 56 52.3930851607 +41 15 22.212153978 14.710 15.611 15.546 15.294 14.720 ~ 421 0
34 4C 55.17 QSO 09 57 38.1845058338 +55 22 57.750865288   18.24 17.89     ~ 386 1
35 Ton 469 Sy1 09 58 20.9495949602 +32 24 02.209578357   15.88 15.78 15.51   ~ 404 1
36 8C 0958+561 QSO 10 01 20.6915852239 +55 53 55.595776916   17.16 16.95     ~ 703 3
37 QSO B0957+5608B QSO 10 01 20.8374436455 +55 53 49.543959298   17.16 16.95     ~ 266 1
38 QSO B0959+6827 QSO 10 03 06.767826 +68 13 16.81100   16.28 15.92 15.3   ~ 52 0
39 7C 100725.89+414711.00 Sy1 10 10 27.5276512902 +41 32 39.052946433   16.72 16.67     ~ 171 1
40 QSO B1008+1319 QSO 10 11 10.8548473346 +13 04 12.188098478   17.00 16.76     ~ 86 0
41 Ton 1187 Sy1 10 13 03.1812987700 +35 51 23.744219932   15.60 15.42     ~ 78 0
42 QSO B1015-205 QSO 10 17 23.98 -20 46 58.6   17.08 17.08     ~ 60 2
43 LBQS 1026-0045B QSO 10 28 37.0180041321 -01 00 27.532168934   18.41 18.22     ~ 62 0
44 SDSS J103027.09+052455.0 QSO 10 30 27.092 +05 24 55.02   26.15 25.44     ~ 230 0
45 4C 06.41 BLL 10 41 17.16249895 +06 10 16.9236835   16.86 16.70 16.14   ~ 279 1
46 PG 1049-005 Sy1 10 51 51.4474876950 -00 51 17.709169017   15.98 15.78     ~ 154 0
47 2MASX J10523275+6125211 Sy1 10 52 32.7477497096 +61 25 20.962201437   17.16 17.06     ~ 111 1
48 ICRF J110715.0+162802 Sy1 11 07 15.0473675622 +16 28 02.244815202   15.91 15.70     ~ 151 1
49 2MASSI J1117064+441333 Sy1 11 17 06.3986665282 +44 13 33.327898429   16.32 16.12     ~ 217 0
50 QSO B1115+080A QSO 11 18 16.951 +07 45 58.23   16.61 16.44     ~ 638 2
51 Ton 1388 Sy1 11 19 08.6786143504 +21 19 17.986556889   14.91 14.80     ~ 423 0
52 QSO B1120+0154 QSO 11 23 20.7256122999 +01 37 47.509465845   16.45 16.12     ~ 117 1
53 QSO B1130+111 QSO 11 33 30.2984529835 +10 52 23.351466688   16.52 16.45     ~ 51 0
54 NAME Crt A Sy1 11 39 10.7024704226 -13 50 43.638984127   16.38 16.17 16.4   ~ 249 1
55 2E 2503 Sy1 11 39 57.0253396181 +65 47 49.482487703   16.50 16.32     ~ 493 1
56 LB 2126 QSO 11 51 20.4599330347 +54 37 33.049735861   16.03 15.78     ~ 146 0
57 2MASSI J1159262+210655 Sy1 11 59 26.2070705214 +21 06 55.877257579     17.5     ~ 37 0
58 Ton 599 QSO 11 59 31.83390975 +29 14 43.8268741   14.80 14.41 17.652 13.39 ~ 814 1
59 QSO J1208+4540 QSO 12 08 58.0106507296 +45 40 35.422302500   16.00 15.70     ~ 179 0
60 PB 3894 Sy1 12 14 17.6737003918 +14 03 13.182526431   14.46 14.19     ~ 756 0
61 [VV98] J121840.6+501545 QSO 12 18 40.4897806675 +50 15 43.438718453   19.17 18.78     ~ 30 0
62 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5419 1
63 2MASS J12305003+0115226 Sy1 12 30 50.0333182740 +01 15 22.597395500   14.44 14.42     ~ 90 0
64 4C -02.55 QSO 12 32 00.0157879377 -02 24 04.790684994   17.41 17.06 16.4   ~ 390 1
65 LBQS 1230+0947 QSO 12 33 25.7867143506 +09 31 23.366060084   16.79 16.70     ~ 60 0
66 QSO J1244+1721 QSO 12 44 10.8248623367 +17 21 04.509382201   16.40 16.09     ~ 137 1
67 QSO B1248+401 QSO 12 50 48.3268849448 +39 51 39.459453541   16.62 16.19     ~ 131 0
68 LB 11408 QSO 12 53 17.5763588311 +31 05 50.630845196   17.20 17.00     ~ 57 0
69 QSO B1252+119 QSO 12 54 38.25561161 +11 41 05.8951798   16.99 16.64 16.76   ~ 248 1
70 QSO B1254+0443 QSO 12 56 59.9233775080 +04 27 34.412929281   16.53 16.25     ~ 150 0
71 [B68b] 201 QSO 12 59 48.7851463534 +34 23 22.627493862   17.05 16.79     ~ 94 0
72 LB 2522 Sy1 13 01 12.9251198286 +59 02 06.693745440   16.04 15.89     ~ 252 0
73 4C 52.27 QSO 13 19 46.1982493750 +51 48 05.779051984   17.35 16.89     ~ 125 1
74 Ton 153 QSO 13 19 56.2318070927 +27 28 08.187007779   16.12 15.98     ~ 144 0
75 Ton 156 QSO 13 21 15.8595181416 +28 47 19.495475730   16.88 16.69     ~ 96 0
76 Ton 157 QSO 13 23 20.5543017149 +29 10 07.107328466   16.91 16.83     ~ 54 0
77 2XMM J132349.6+654148 Sy1 13 23 49.5183330047 +65 41 48.166159616   16.01 15.84     ~ 156 0
78 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3856 2
79 PB 4007 Sy1 13 36 02.0094221124 +17 25 13.090293838   16.50 16.33     ~ 82 0
80 QSO J1341+4123 QSO 13 41 00.7893963759 +41 23 14.131471417   17.04 16.76     ~ 117 0
81 3C 288.1 QSO 13 42 13.2655 +60 21 42.881   18.26 17.97     ~ 138 1
82 QSO B1352+0106 QSO 13 54 58.6803586876 +00 52 10.902911679     16.0     ~ 75 0
83 ICRF J135704.4+191907 Sy1 13 57 04.43665381 +19 19 07.3724675   16.33 16.03 15.3   ~ 418 2
84 QSO J1409+2618 QSO 14 09 23.9086975485 +26 18 21.053512073   16.07 15.74     ~ 181 0
85 QSO J1415+1129 QSO 14 15 46.25 +11 29 43.4   17.63 17.23     ~ 606 0
86 3C 298.0 QSO 14 19 08.1804677481 +06 28 34.803573057   17.12 16.79     ~ 375 1
87 Ton 202 Sy1 14 27 35.6081505943 +26 32 14.540877233   15.96 16.00     ~ 277 1
88 2MASSI J1429430+474726 Sy1 14 29 43.0740635196 +47 47 26.215326061   17.29 16.97     ~ 158 0
89 Mrk 478 Sy1 14 42 07.4713423763 +35 26 22.939531895   14.91 14.58     ~ 497 0
90 PG 1538+47 Sy1 15 39 34.8103282209 +47 35 31.265171935   16.01 15.81     ~ 89 1
91 QSO B1544+4855 Sy1 15 45 30.2362003284 +48 46 08.978296070   16.92 16.73     ~ 216 0
92 2E 3648 Sy1 16 20 21.8184966430 +17 36 23.952696503   16.53 16.41 20.5   ~ 392 2
93 4C 23.43 Sy1 16 24 39.0836869355 +23 45 12.221830474   17.91 17.47     ~ 320 1
94 QSO B1626+5529 Sy1 16 27 56.1124169072 +55 22 31.559608363   15.79 15.68     ~ 190 0
95 QSO B1630+3744 QSO 16 32 01.1118986024 +37 37 49.980862599   16.50 16.30     ~ 163 0
96 QSO B1634+7037 QSO 16 34 28.9917493918 +70 31 32.394595988   14.90 14.66     ~ 260 0
97 ICRF J163813.4+572023 Sy1 16 38 13.45629705 +57 20 23.9790727     17.0 16.94   ~ 321 1
98 2A 1705+609 Sy1 17 04 41.3742389551 +60 44 30.522600868   15.65 15.40 15.30   ~ 728 1
99 QSO J1719+4804 QSO 17 19 38.2496689104 +48 04 12.245390013   15.33 14.60 14.25   ~ 174 1
100 2MASS J21145258+0607423 Sy1 21 14 52.5774242314 +06 07 42.435724828   16.06 15.77     ~ 201 0
101 QSO B2128-123 BLL 21 31 35.26175 -12 07 04.7961   16.33 16.11 15.87   ~ 426 1
102 Mrk 1513 Sy1 21 32 27.8163185343 +10 08 19.250705656   14.92 14.64     ~ 555 0
103 4C 06.69 QSO 21 48 05.4585565234 +06 57 38.605396596   16.85 16.47 15.06   ~ 607 1
104 4C -03.79 QSO 22 18 52.03772395 -03 35 36.8794566   16.93 16.38 16.15   ~ 320 1
105 4C 11.69 QSO 22 32 36.40890517 +11 43 50.9040717   17.75 17.33     ~ 1007 2
106 QSO J2246-1206 QSO 22 46 18.2318680462 -12 06 51.276150444   16.63 16.45 15.99   ~ 266 1
107 3C 454.3 Bla 22 53 57.74798 +16 08 53.5611   16.57 16.10 15.22   ~ 2565 2
108 NAME MR 2251-178 Sy1 22 54 05.8858021308 -17 34 55.403006841   14.99 14.36 15.12   ~ 385 3
109 PB 5235 QSO 23 04 44.9533458555 +03 11 45.918742912   15.44 15.8     ~ 102 0
110 4C 09.72 BLL 23 11 17.7543884785 +10 08 15.754791578   16.15 16.00     ~ 183 1
111 QSO B2340-0339 QSO 23 42 56.6002737186 -03 22 26.268440951   16.53 16.02 16.28   ~ 81 1
112 ICRF J234636.8+093045 Sy1 23 46 36.83854476 +09 30 45.5148840   16.23 15.97 15.99   ~ 312 2
113 QSO J2355-3357 QSO 23 55 25.7958797721 -33 57 55.213455767   18.32 16.4 17.10   ~ 57 1

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2021.04.14-14:19:25

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