2001AJ....121.1799P

Query : 2001AJ....121.1799P

2001AJ....121.1799P - Astron. J., 121, 1799-1820 (2001/April-0)

Absorption systems in the spectra of 66 z≳4 quasars.

PEROUX C., STORRIE-LOMBARDI L.J., McMAHON R.G., IRWIN M. and HOOK I.M.

Abstract (from CDS):

We present high signal-to-noise, ∼5 Å resolution (FWHM) spectra of 66 z≳4 bright quasars obtained with the 4 m Cerro Tololo Inter-American Observatory and 4.2 m William Hershel telescopes. The primary goal of these observations was to undertake a new survey for intervening absorption systems detected in the spectra of background quasars. We look for both Lyman-limit systems (column densities N_HI_≥1.6x1017 atoms.cm–2) and damped Lyα systems (column densities N_HI_≥2x1020 atoms.cm–2). This work resulted in the discovery of 49 Lyman-limit systems, 15 of which are within 3000 km.s–1 of the quasar emission and thus might be associated with the quasar itself, 26 new damped Lyα absorption candidates, 15 of which have z>3.5, and numerous metal absorption systems. In addition, 10 of the quasars presented here exhibit intrinsic broad absorption lines.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - galaxies: high-redshift - line: identification - Galaxies: Quasars: Absorption Lines - Galaxies: Quasars: General - Surveys

Simbad objects: 33

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Number of rows : 33
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 QSO J0003+2730 QSO 00 03 23.0711057688 +27 30 24.252222312     19.00     ~ 10 0
2 QSO B0032+1622 QSO 00 34 54.6003906960 +16 39 20.658857256   21.1 19.50 18.7   ~ 28 0
3 QSO J0035+0040 QSO 00 35 25.2917898096 +00 40 02.807161536   24.03 22.48     ~ 36 0
4 [VV2006] J005206.8+240539 QSO 00 52 06.6487954248 +24 05 37.435540812     18.87     ~ 9 1
5 QSO B0051-2758 QSO 00 54 15.5344651512 -27 42 08.563151268     20.5     ~ 31 0
6 QSO J0106+2601 QSO 01 06 00.6958325448 +26 01 01.073941644     19.40     ~ 16 0
7 QSO J0131+0633 QSO 01 31 12.1973125968 +06 33 39.741859116     19.10     ~ 11 0
8 QSO J0133+0400 QSO 01 33 40.3265690928 +04 00 59.844453768     18.30     ~ 74 0
9 QSO J0134+3307 QSO 01 34 21.4863198144 +33 07 56.378382420     18.80     ~ 37 0
10 QSO J0137+2837 QSO 01 37 12.2813369400 +28 37 35.350799736     19.00     ~ 5 0
11 QSO J0152+0735 QSO 01 52 11.0581267512 +07 35 50.228167776     19.60     ~ 19 0
12 [VV2006] J020703.5+094059 QSO 02 07 03.4341645480 +09 40 59.412403704     18.70     ~ 5 0
13 QSO J0209+0517 QSO 02 09 44.6218858992 +05 17 13.727761872     17.80     ~ 60 0
14 QSO J0248+1802 QSO 02 48 54.2720204400 +18 02 49.274967876     18.4     ~ 49 0
15 [VV2006] J032042.7+020816 QSO 03 20 42.6883332360 +02 08 15.690085404     18.50     ~ 6 0
16 QSO J0747+4434 QSO 07 47 49.7379630144 +44 34 17.086179108   22.88 21.15     ~ 58 0
17 QSO J1048+4407 QSO 10 48 46.6283653104 +44 07 10.856369964   23.89 21.80     ~ 38 0
18 QSO J1057+4555 QSO 10 57 56.2610108784 +45 55 53.070401748   20.19 18.80 17.2 16.8 ~ 118 0
19 QSO J1159+1337 QSO 11 59 06.5236146648 +13 37 37.671720348   19.50 18.53     ~ 52 0
20 QSO J1253-0228 QSO 12 53 36.3528737088 -02 28 07.744660284     18.80     ~ 42 0
21 QSO J1438+2538 QSO 14 38 35.5022061216 +25 38 30.765848748   22.52 20.27     ~ 19 0
22 QSO J1456+2007 QSO 14 56 28.9730705760 +20 07 27.100285680     19.50     ~ 26 0
23 QSO J1618+4125 QSO 16 18 22.7618612424 +41 25 58.324455228   22.31 20.91     ~ 37 0
24 QSO J1633+1411 QSO 16 33 19.6287438288 +14 11 42.103797792   21.64 20.28     ~ 46 0
25 QSO J1646+5514 QSO 16 46 56.3884451808 +55 14 46.123613484     18.10     ~ 32 0
26 QSO J1721+3256 QSO 17 21 06.6397559448 +32 56 36.234598164     19.20     ~ 29 0
27 QSO J1802+5616 QSO 18 02 48.8363975640 +56 16 50.442963780     18.30     ~ 25 0
28 QSO J2122-0014 QSO 21 22 07.3615009656 -00 14 45.585196728   21.76 20.43     ~ 41 0
29 QSO J2154+0335 QSO 21 54 06.7187823360 +03 35 40.258830120     19.00     ~ 15 0
30 QSO J2155+1358 QSO 21 55 02.0017063296 +13 58 25.712205816     18.00     ~ 50 0
31 QSO J2241+1352 QSO 22 41 47.7573429024 +13 52 02.741146356   22.20 20.66     ~ 52 0
32 QSO J2315+0921 QSO 23 15 59.1311325480 +09 21 43.180860096     19.10     ~ 15 0
33 QSO J2344+0342 QSO 23 44 03.1101598920 +03 42 26.725817304     18.20     ~ 51 0

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