2009A&A...503..731F


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.12CET03:07:32

2009A&A...503..731F - Astronomy and Astrophysics, volume 503, 731-746 (2009/9-1)

Metal-enriched plasma in protogalactic halos. A survey of NV absorption in high-z damped and sub-damped Lyman-α systems.

FOX A.J., PROCHASKA J.X., LEDOUX C., PETITJEAN P., WOLFE A.M. and SRIANAND R.

Abstract (from CDS):

We continue our recent work of characterizing the plasma content of high-redshift damped and sub-damped Lyman-α systems (DLAs/sub-DLAs), which represent multi-phase gaseous (proto)galactic disks and halos seen toward a background source. We survey NV absorption in a sample of 91 DLAs and 18 sub-DLAs in the redshift range 1.67<zabs<4.28 with unblended coverage of the NV doublet. Our dataset includes high-resolution (6-8km/s FWHM) quasar spectra obtained with VLT/UVES and Keck/HIRES, together with medium-resolution (≃40km/s FWHM) quasar spectra from Keck/ESI. In DLAs, we find eight secure NV detections, four marginal detections, and 79 non-detections, for which we place 3σ upper limits on the NV column density. The detection rate of NV in DLAs is therefore 13+5–4%. Two sub-DLA NV detections are found among a sample of 18, at a similar detection rate of 11+15–7%. We show that the NV detection rate is a strong function of neutral-phase nitrogen abundance, increasing by a factor of ≃4 at [N/H]=[NI/HI]>-2.3. The NV and CIV component b-value distributions in DLAs are statistically similar, but the median b(NV) of 18km/s is narrower than the median b(OVI) of ≃25km/s. Some ≃20% of the NV components have b<10km/s and thus arise in warm, photoionized plasma at log(T/K)<4.92; local sources of ionizing radiation (as opposed to the extragalactic background) are required to keep the cloud sizes physically reasonable. The nature of the remaining ≃80% of (broad) NV components is unclear; models of radiatively-cooling collisionally-ionized plasma at log(T/K)=5.2-5.4 are fairly successful in reproducing the observed integrated high-ion column density ratios and the component line widths, but we cannot rule out photoionization by local sources. Finally, we identify several unusual DLAs with extremely low metallicity (<0.01 solar) but strong high-ion absorption (logN(NV)>14 or logN(OVI)>14.2), which present challenges to either galactic inflow or outflow models.

Abstract Copyright:

Journal keyword(s): quasars: absorption lines - cosmology: observations - galaxies: high-redshift - galaxies: halos - galaxies: ISM

Simbad objects: 140

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Number of rows : 140

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LBQS 2359-0216A QSO 00 01 46.1815420609 -01 59 33.469902486   17 18.6     ~ 21 0
2 LBQS 0010-0012 QSO 00 13 06.1513833715 +00 04 31.945146837   19.29 19.05     ~ 81 0
3 LBQS 0013-0029 QSO 00 16 02.4050445836 -00 12 25.076529860   18.67 18.36     ~ 171 0
4 QSO B0019-1522 QSO 00 22 08.0398007654 -15 05 39.991317939     19.0     ~ 57 0
5 QSO B0027-1836 QSO 00 30 23.6257396463 -18 19 56.118776105   18.2 17.9     ~ 41 0
6 QSO B0039-3354 QSO 00 42 16.4582182120 -33 37 54.841208217   18.34 17.74     ~ 14 0
7 LBQS 0042-2930 QSO 00 45 08.5281829770 -29 14 32.500718435   17.92       ~ 28 0
8 LBQS 0049-2820 QSO 00 51 27.1927461395 -28 04 33.967555009     18.1     ~ 43 0
9 HE 0057-4126 QSO 00 57 00.0 -41 26 00           ~ 1 0
10 QSO B0058-292 QSO 01 01 04.6492810170 -28 58 01.683361609     18.7     ~ 37 0
11 PHL 957 QSO 01 03 11.2740814277 +13 16 17.810502093   16.97 16.57     ~ 323 0
12 QSO J0105-1846 QSO 01 05 16.7912539296 -18 46 41.986608187     18.3     ~ 71 0
13 QSO B0112+03 QSO 01 14 53.227 +03 14 56.98     18.6     ~ 57 2
14 QSO B0112-30 QSO 01 15 04.8737306476 -30 25 14.963003446           ~ 44 1
15 QSO J0127-0045 QSO 01 27 00.6901952120 -00 45 59.150634975   19.95 18.95     ~ 43 0
16 QSO J0133+0400 QSO 01 33 40.3272635087 +04 00 59.846288616     18.30     ~ 46 0
17 QSO J0134+3307 QSO 01 34 21.4860565338 +33 07 56.366707909     18.80     ~ 33 0
18 QSO J0137-2707 QSO 01 37 54.5554749127 -27 07 36.617810426   18.6       ~ 21 0
19 QSO B0201+113 QSO 02 03 46.65705872 +11 34 45.4095674   19.5 19.5 19.41   ~ 177 1
20 QSO J0209+0517 QSO 02 09 44.6217446742 +05 17 13.724227644     17.80     ~ 41 0
21 QSO B0216+0803 QSO 02 18 57.3583341300 +08 17 27.351147286     18.1     ~ 87 0
22 QSO B0237-2322 QSO 02 40 08.1742481040 -23 09 15.727160394   16.78 16.63     ~ 467 0
23 HE 0242-2917 QSO 02 42 00.0 -29 17 00           ~ 6 0
24 [VV96] J025240.1-553832 QSO 02 52 40.1053582016 -55 38 32.028669722   17.4 17.4     ~ 12 0
25 QSO B0252-0005 QSO 02 55 13.0347063722 +00 06 39.421482750   19.59 19.49     ~ 44 0
26 QSO B0254-404 QSO 02 56 34.0347023899 -40 13 00.407572525     17.4     ~ 31 0
27 QSO B0300-3152 QSO 03 02 11.3270042153 -31 40 30.388818705   17.7       ~ 14 0
28 QSO J0324-3203 QSO 03 24 12.4529340817 -32 02 59.781983295     17.95     ~ 6 0
29 QSO B0331-4505 BLL 03 32 44.1064721268 -44 55 57.309717321   17.9 17.9     ~ 23 0
30 QSO B0336-017 QSO 03 39 00.9861020 -01 33 17.606671   20.1 19.1 18.8   ~ 99 2
31 QSO B0347-383 QSO 03 49 43.6605705480 -38 10 30.834942758     17.3     ~ 173 0
32 QSO J0407-4410 QSO 04 07 18.0882243903 -44 10 13.989443935   17.6 17.6     ~ 81 1
33 HE 0414-2850 QSO 04 14 00.0 -28 50 00           ~ 1 0
34 QSO B0421-2624 QSO 04 23 53.9628213285 -26 18 01.098779316     18.1     ~ 14 0
35 QSO B0424-2209 QSO 04 26 10.3252806274 -22 02 17.794508544     17.94     ~ 28 0
36 QSO B0425-5214 QSO 04 26 44.5189662228 -52 08 19.798693576   17.8 17.8     ~ 14 0
37 QSO B0432-440 QSO 04 34 03.2148262016 -43 55 47.771354227   19.8 19.60 19.7   ~ 33 0
38 HE 0438-1638 ? 04 38 00.0 -16 38 00           ~ 1 0
39 QSO B0438-43 QSO 04 40 17.1805718498 -43 33 08.609959495   19.31 19.5 18.2   ~ 246 1
40 [DPD2006] QSO J0452-1305 abs 2.06657 ALS 04 52 18.90 -13 05 03.0           ~ 2 0
41 QSO B0450-1310 QSO 04 53 13.5743802506 -13 05 55.082840035   13.2 16.5     ~ 85 2
42 4C -02.19 QSO 05 01 12.80988366 -01 59 14.2562534   19.1 18.4 19.04   ~ 505 1
43 [SPL2005] QSO J0530-2503 abs 2.81112 DLA 05 30 07.90 -25 03 29.9           ~ 4 0
44 QSO B0528-2505 QSO 05 30 07.96279681 -25 03 29.8994010   18.17 17.34 17.7   ~ 382 0
45 QSO B0551-36 QSO 05 52 46.1825351739 -36 37 27.606597529   17.72 17.57     ~ 82 0
46 [LSP2002] QSO J0552-3637 abs 1.96221 DLA 05 52 46.19 -36 37 28.5           ~ 3 0
47 QSO B0642-5038 QSO 06 43 27.0080354264 -50 41 12.809659391     18.5     ~ 32 0
48 QSO J0747+2739 QSO 07 47 11.1475926883 +27 39 03.365274417     17.20     ~ 47 0
49 QSO B0805+5224 QSO 08 08 49.4244545735 +52 15 15.240544493   21.79 20.40     ~ 48 0
50 QSO J0812+32 QSO 08 12 40.6859427300 +32 08 08.578960457   18.16 17.75     ~ 76 1
51 QSO J0826+3148 QSO 08 26 19.7051309784 +31 48 48.016918257   18.29 17.99     ~ 31 0
52 [VV98] J083649.1+104616 QSO 08 36 49.0951550795 +10 46 18.111751242   19.49 19.14     ~ 8 0
53 QSO B0841+129 BLL 08 44 24.2446850407 +12 45 46.527740081   18.28 18.5     ~ 103 0
54 [VV2006] J090102.7+420745 QSO 09 01 02.7317171645 +42 07 46.429935834   20.83 20.54     ~ 13 0
55 QSO B0913+0715 QSO 09 16 13.9617253427 +07 02 24.488538434     17.1     ~ 92 0
56 [RKV2003] QSO J0916+0702 abs 2.618 DLA 09 16 14.00 +07 02 24.6           ~ 11 0
57 QSO J0929+2825 QSO 09 29 14.4964062771 +28 25 29.141303266   18.94 18.25     ~ 26 0
58 SDSS J093012.59+280333.3 QSO 09 30 12.5942609703 +28 03 33.393937461   20.31 20.11     ~ 12 0
59 QSO B0933-333 BLL 09 35 09.2314159590 -33 32 37.699656543   19.7 20.00 18.9   ~ 30 1
60 QSO J0953+5230 QSO 09 53 09.0505444175 +52 30 29.701380049   18.02 17.80     ~ 31 0
61 QSO B0951-0450 QSO 09 53 55.7476659073 -05 04 18.957152606     19.0     ~ 53 0
62 QSO B0952-0115 QSO 09 55 00.1037541106 -01 30 06.549307797     18.7     ~ 130 1
63 QSO B0953+47 QSO 09 56 25.1665961777 +47 34 42.492855578     19.47     ~ 55 0
64 [MWF2003] QSO J1014+4300 abs 2.9587 ALS 10 14 47.18 +43 00 30.1           ~ 4 0
65 QSO B1011+4315 QSO 10 14 47.1892442829 +43 00 30.171082487   17.39 17.05     ~ 48 0
66 QSO J1021+3001 QSO 10 21 56.5558843578 +30 01 40.455740308     17.48     ~ 41 0
67 QSO B1036-2257 QSO 10 39 09.5073121205 -23 13 26.400097195   18.0 18.0     ~ 38 0
68 QSO J1039-2719 QSO 10 39 21.8516211943 -27 19 16.434979322     17.4     ~ 84 0
69 QSO J1057+4555 QSO 10 57 56.2613130231 +45 55 53.068171990   20.19 18.80 17.2 16.8 ~ 94 0
70 QSO B1055-301 QSO 10 58 00.42741563 -30 24 55.0270981   19.4 19.5 19.33   ~ 38 1
71 PG 1101-264 QSO 11 03 25.2992132616 -26 45 15.809136362   16.08 16.02     ~ 238 0
72 QSO B1108-07 QSO 11 11 13.600 -08 04 02.00     18.10     ~ 56 0
73 QSO J1113-1533 QSO 11 13 50.6115308594 -15 33 34.006285026   18.7 18.7     ~ 26 0
74 QSO B1117-1329 QSO 11 20 10.3169512408 -13 46 25.945122237     18.00     ~ 47 0
75 QSO J1131+6044 QSO 11 31 30.4194789877 +60 44 20.762682861   18.45 18.08     ~ 31 0
76 QSO B1132+2243 QSO 11 35 08.0965466837 +22 27 15.612971921   17.7       ~ 37 0
77 QSO J1155+0530 QSO 11 55 38.6022099006 +05 30 50.684233093   19.57 18.78     ~ 42 0
78 QSO B1157+014 QSO 11 59 44.8277890111 +01 12 06.984367162   17.87 17.52     ~ 194 1
79 [VV2006] J120550.2+020131 QSO 12 05 50.1934532283 +02 01 31.581824195   17.82 17.43     ~ 27 0
80 QSO J1211+0422 QSO 12 11 17.5960662421 +04 22 22.288305701   18.35 18.13     ~ 37 0
81 QSO B1209+0919 QSO 12 11 34.9529988214 +09 02 20.851330054   19.61 19.15     ~ 90 0
82 LBQS 1210+1731 QSO 12 13 03.0132688253 +17 14 23.238685675   18.21 18.03     ~ 73 0
83 QSO B1220-1800 QSO 12 23 10.6140341435 -18 16 42.441400819   18.1 18.1     ~ 14 0
84 LBQS 1223+1753 QSO 12 26 07.1942805357 +17 36 49.926547912   18.93 18.59     ~ 96 0
85 QSO B1228-113 QSO 12 30 55.5558242374 -11 39 09.793713678   22.010   19.115   ~ 56 1
86 LBQS 1232+0815 QSO 12 34 37.5507010309 +07 58 43.372966617     18.4     ~ 109 0
87 LBQS 1242+0006 QSO 12 45 24.5999771549 -00 09 38.018369831   18.30 18.08     ~ 58 0
88 QSO J1248+3110 QSO 12 48 20.2085578544 +31 10 43.309490519   22.27 21.06     ~ 31 0
89 QSO J1253-0228 QSO 12 53 36.3533107417 -02 28 07.746363785     18.80     ~ 31 0
90 QSO J1310+5424 QSO 13 10 40.2429956830 +54 24 49.489932580   19.16 18.79     ~ 27 0
91 QSO B1331+170 QSO 13 33 35.7826224 +16 49 04.014213   16.84 16.71 16.41   ~ 402 1
92 QSO B1337+11 QSO 13 40 02.5420534525 +11 06 30.176749720     18.7     ~ 102 0
93 QSO J1342-1355 QSO 13 42 58.8724264812 -13 55 59.811090379   19.2 19.2     ~ 20 0
94 QSO J1356-1101 QSO 13 56 46.8321881764 -11 01 29.227943266   19.0 19.20 17.7   ~ 42 2
95 QSO B1354-174 QSO 13 57 06.07420483 -17 44 01.9049126   19 19 18   ~ 76 1
96 QSO J1410+5111 QSO 14 10 30.6147723381 +51 11 13.643989435   19.28 18.82     ~ 28 0
97 QSO B1409+0930 QSO 14 12 17.2932265263 +09 16 24.702976948     18.6     ~ 53 0
98 [PEB2002] QSO J1412+0916 abs 2.45620 DLA 14 12 17.30 +09 16 25.0           ~ 8 0
99 QSO J1432+3940 QSO 14 32 24.7688922429 +39 40 24.549000857   23.01 21.19     ~ 39 0
100 CSO 669 QSO 14 35 00.5429197236 +53 59 53.777451968   17.54 17.35     ~ 41 0
101 QSO J1443+2724 QSO 14 43 31.1702656971 +27 24 36.772847043     19.3     ~ 68 0
102 LBQS 1444+0126 QSO 14 46 53.0500684156 +01 13 55.922982686   18.71 18.38     ~ 52 0
103 QSO B1451+123 QSO 14 54 18.5816006547 +12 10 53.905442682     18.6     ~ 72 0
104 [VV2006] J150147.2+480336 QSO 15 01 47.2649262501 +48 03 35.839755106   19.24 19.02     ~ 23 1
105 QSO J1506+5220 QSO 15 06 54.5500668499 +52 20 04.740607965   21.72 20.14     ~ 44 0
106 NAME MS 1512-cB58 AGN 15 14 22.2751 +36 36 25.674     20.64   20.35 ~ 315 0
107 QSO J1558-0031 QSO 15 58 10.1642745241 -00 31 20.036975773   18.07 17.80     ~ 46 0
108 QSO J1723+2243 QSO 17 23 23.1074963445 +22 43 57.141061166     18.17     ~ 29 0
109 QSO B1759+7539 QSO 17 57 46.3591958319 +75 39 16.182864362     16.50     ~ 78 0
110 [MWF2003] QSO J1757+7539 abs 2.6253 ALS 17 57 46.5 +75 39 16           ~ 2 0
111 [VV2006] J203633.4-055234 QSO 20 36 33.4252528508 -05 52 34.373047745   19.18 18.83     ~ 16 0
112 QSO J2100-0641 QSO 21 00 25.0296282307 -06 41 45.971328193   19.02 18.54     ~ 41 0
113 [PH2004] QSO J2100-0641 abs 3.092 DLA 21 00 25.03 -06 41 45.9           ~ 5 0
114 QSO B2059-360 QSO 21 02 44.6075037386 -35 53 07.084123633   19.18 18.62     ~ 52 0
115 QSO J2119-3536 QSO 21 19 27.6059088002 -35 37 40.546882117   17.50 17.35     ~ 41 0
116 LBQS 2138-4427 QSO 21 41 59.5010115549 -44 13 25.925906956   19.17 18.20     ~ 59 1
117 QSO J2155+1358 QSO 21 55 01.998 +13 58 25.64     18.00     ~ 40 0
118 LBQS 2206-1958A QSO 22 08 52.0727351941 -19 43 59.869072347   17.49 17.33     ~ 196 0
119 HE 2225-4025 QSO 22 25 00.0 -40 25 00           ~ 1 0
120 QSO B2223+2024 QSO 22 25 36.9182057435 +20 40 15.320559605     18.60     ~ 23 1
121 QSO B2222-396 QSO 22 25 40.4399752685 -39 24 36.646426747     17.9     ~ 30 0
122 QSO B2228-399 QSO 22 31 35.3066001746 -39 38 54.311583372     18.3     ~ 21 0
123 LBQS 2230+0232 QSO 22 32 35.2155602853 +02 47 55.814661874   18.387 18.038     ~ 82 0
124 QSO J2241+1352 QSO 22 41 47.7595363207 +13 52 02.750370029   22.20 20.66     ~ 43 0
125 [DRT2000] QSO J2246-6015 abs 2.33 DLA 22 46 11 -60 15.2           ~ 15 0
126 QSO J2246-6015 QSO 22 47 08.9261267635 -60 15 45.301367673           ~ 56 0
127 QSO B2311-373 QSO 23 13 59.7082083928 -37 04 46.211609695   19.0 18.5 19.05   ~ 37 1
128 HE 2316-1012 QSO 23 16 00.018 -10 11 59.38           ~ 2 0
129 QSO B2314-409 QSO 23 16 46.9196152973 -40 41 21.105711875   17.9 17.9     ~ 59 2
130 QSO B2318-1107 QSO 23 21 28.687 -10 51 22.50           ~ 14 0
131 QSO J2323+2758 QSO 23 23 40.898 +27 58 01.18     18.51     ~ 16 0
132 QSO B2332-094 QSO 23 34 46.4052372832 -09 08 12.240476964   19.21 18.62 18.07   ~ 65 0
133 QSO J2340-0053 QSO 23 40 23.6702895509 -00 53 26.997605159   18.26 17.93     ~ 74 0
134 QSO J2344+0342 QSO 23 44 03.109 +03 42 26.73     18.20     ~ 37 0
135 QSO B2342+3417 QSO 23 44 51.2531223928 +34 33 48.699642129     19.1     ~ 53 1
136 QSO B2343+125 QSO 23 46 28.200 +12 49 00.00     17.5     ~ 120 2
137 QSO B2344+125 QSO 23 46 32.80 +12 45 40.0     17.0     ~ 80 1
138 QSO B2348-0108 QSO 23 50 57.8764286186 -00 52 09.892906411   19.23 18.77 18.7   ~ 128 0
139 QSO B2348-147 QSO 23 51 29.8151829970 -14 27 56.845507757     16.9     ~ 70 1
140 [DPD2006] QSO J2351-1427 abs 2.27939 ALS 23 51 29.9 -14 27 48           ~ 2 0

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2019.11.12-03:07:32

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