2003A&A...404..883O

Query : 2003A&A...404..883O

2003A&A...404..883O - Astronomy and Astrophysics, volume 404, 883-899 (2003/6-4)

An optical imaging study of 0.4 ≤ z ≤ 0.8 quasar host galaxies. I. Observations and reduction.

OERNDAHL E., ROENNBACK J. and VAN GRONINGEN E.

Abstract (from CDS):

We have conducted an optical imaging study aimed at resolving the host galaxies of 79 radio-loud and radio-quiet quasars at z=0.4-0.8, extending the number of investigated objects in this redshift range by ∼45%. Observations were performed mainly in the R band but also in V and I band using the Nordic Optical Telescope on La Palma. In this paper we discuss the sample composition and observations and the reduction techniques used. The quasars were selected in pairs of radio-loud and radio-quiet objects matched in the z-V plane in order to facilitate a statistical comparison. The radio-loud part of the sample contains comparable numbers of flat and steep radio spectrum sources which also are matched in redshift and V magnitude. Point spread function subtraction was performed using one-dimensional luminosity profiles both on the quasar image and on a field star, and subtracted images and luminosity profiles are shown for each quasar field. The detection rate is 60% for the radio-quiet host galaxies and 80% for radio-loud hosts. The host galaxies have magnitudes which make them brighter than an L* galaxy by a factor of 1.5-4 at the low end of the redshift range, which increases by 2-3 times towards the higher end of the redshift range. Both radio-quiet and radio-loud hosts follow the radio galaxy R-z Hubble relation well. Analysis and discussion of colours and morphology is presented in Orndahl and Roennback, 2003, in prep. (Paper II).

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - quasars: general - galaxies: fundamental parameters - galaxies: photometry

CDS comments: OU 401 = OHIO U 401.

Simbad objects: 79

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Number of rows : 79
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 LBQS 0007+0236 QSO 00 10 19.5491286960 +02 53 40.337240352     18.4     ~ 16 0
2 PB 5797 QSO 00 12 35.7246832392 +02 03 26.460088488   17.5 18.0     ~ 20 0
3 QSO B0015+162 QSO 00 18 31.9990789848 +16 29 25.835460180   19 18.26 18.40   ~ 39 0
4 LBQS 0020-0300 QSO 00 22 55.1215350288 -02 44 18.723457788   18 17.3     ~ 19 0
5 LBQS 0021-0100 QSO 00 24 11.6587535952 -00 43 48.103104900   18.72 18.39     ~ 45 0
6 LBQS 0058+0205 QSO 01 01 33.9534220080 +02 21 53.933260788     18.5     ~ 15 0
7 LBQS 0110+0125 QSO 01 13 24.2998430472 +01 41 49.295162832   18 17.8     ~ 14 0
8 QSO B0112+329 QSO 01 15 47.0389780608 +33 12 39.494113308   19.11 18.9     ~ 19 0
9 ICRF J013324.6+242741 Sy1 01 33 24.6277653312 +24 27 41.305331700     16.8     ~ 81 1
10 QSO B0135+056 QSO 01 37 48.8177091552 +05 55 24.417437016   18.20 18.3     ~ 15 0
11 QSO B0136.3+0605 BLL 01 38 55.7186477424 +06 21 32.556834396     18.52     ~ 24 1
12 QSO B0200-0858 QSO 02 03 26.2080730392 -08 43 48.528642900   16.86 16.68     ~ 25 0
13 QSO B0212+171 QSO 02 14 44.91284472 +17 22 49.5117017   19.0 18.0     ~ 42 1
14 5C 6.189 QSO 02 18 42.2065580832 +31 49 26.877837900     19     ~ 14 1
15 PB 6856 QSO 02 42 40.3188012768 +00 57 27.137143404   16.62 16.51     ~ 60 0
16 PB 6882 Sy1 02 46 51.9154329792 -00 59 30.996862872   17.24 17.05     ~ 71 0
17 QSO B0256+0140 QSO 02 58 49.9207472256 +01 52 25.063487508   19.04 19.01     ~ 12 0
18 PB 6995 QSO 03 04 22.3962164880 +00 22 31.736478216   17.27 17.12     ~ 49 0
19 LBQS 0305+0222 QSO 03 08 14.1181220280 +02 34 23.172279924     17.9     ~ 12 0
20 2E 909 Sy1 03 55 59.4 +02 56 23   19.1 18.6     ~ 29 1
21 ICRF J052109.8+163822 Sy1 05 21 09.88596258 +16 38 22.0515459   19.37 18.84 18.480   ~ 851 1
22 QSO B0657+176 QSO 07 00 31.3674519744 +17 35 52.850623164     18.5     ~ 13 1
23 7C 070948.20+370109.00 QSO 07 13 09.4541505072 +36 56 06.703915884   15.66 15.49     ~ 37 1
24 ICRF J074559.3+331334 Sy1 07 45 59.3238787752 +33 13 34.135675536   18.98 18.88 18.09   ~ 73 1
25 LB 8741 QSO 08 50 29.3935389696 +18 53 50.321909688   17.11 17.04     ~ 37 0
26 ICRF J093241.1+530633 Sy1 09 32 41.1507769128 +53 06 33.806842272   19.38 19.18 18.82   ~ 90 1
27 QSO B1157+118 QSO 11 59 46.4435364744 +11 33 48.505325184   19.52 19.36     ~ 21 1
28 LBQS 1240+1551 QSO 12 43 00.8722242648 +15 35 10.595112936   18.74 18.54     ~ 29 0
29 ICRF J124357.6+162253 Sy1 12 43 57.6491122968 +16 22 53.395049244   19.23 19.00     ~ 312 1
30 LBQS 1242+1719 QSO 12 45 21.7756999656 +17 03 10.173262536     18.6     ~ 20 0
31 LB 11408 QSO 12 53 17.5764589992 +31 05 50.628627492   17.20 17.00     ~ 63 0
32 AB 122 QSO 13 05 43.8150215328 +33 35 31.605802188   18.08 18.07     ~ 42 0
33 PB 3344 QSO 13 08 29.6752629072 +30 05 38.996571948   17.06 17.17 16.29   ~ 55 0
34 2MASX J13341346+3715340 Sy1 13 34 13.4946576696 +37 15 34.435111968   17.91 17.81     ~ 35 0
35 QSO B1423+146 QSO 14 25 49.01801221 +14 24 56.9018642   18.35 17.96 19.54   ~ 51 1
36 LBQS 1435+0130 QSO 14 37 57.4388278968 +01 17 54.519760392   17.8 18.46 18.0   ~ 34 0
37 QSO B1443+102 Sy1 14 46 20.3535600552 +10 03 09.961620516   19.68 19.48     ~ 16 0
38 2MASS J14483770+0206281 Sy1 14 48 37.6918633920 +02 06 28.034167968   17.96 17.74     ~ 34 0
39 4C 09.52 QSO 14 53 53.9050778616 +09 34 23.212945020   18.28 18.15     ~ 49 1
40 ICRF J151443.0+365050 Sy1 15 14 43.0683049560 +36 50 50.355436776   17.11 17.01 15.83   ~ 411 1
41 4C 13.55 QSO 15 33 15.0711476160 +13 32 25.109379456   19.07 18.74     ~ 50 1
42 PG 1538+47 Sy1 15 39 34.8103136784 +47 35 31.263874908   16.01 15.81     ~ 98 1
43 QSO B1544+4855 Sy1 15 45 30.2358624864 +48 46 08.976390420   16.92 16.73     ~ 231 0
44 ICRF J155043.5+112047 Sy1 15 50 43.5947388984 +11 20 47.453985024   17.47 17.23 16.5   ~ 173 3
45 QSO B1608+114 QSO 16 10 33.4317968136 +11 15 30.663290232   18.5 19.5     ~ 25 1
46 [CSC85] 1631.3+3796 HS? 16 33 05.1629692176 +37 51 05.066662212   19.8 19.2 20.0   sdO: 8 0
47 ICRF J163813.4+572023 Sy1 16 38 13.45629995 +57 20 23.9789828     16.90 16.94   ~ 359 1
48 [VV96] J163918.0+390459 QSO 16 39 18.0068910672 +39 05 00.102889968   17.72 17.43     ~ 8 0
49 QSO B1640+396 QSO 16 41 47.5389998880 +39 35 03.321075804   20.01 19.83     ~ 69 1
50 QSO B1640+3944 QSO 16 42 11.1330669024 +39 38 37.025545776   20.59 20.51     ~ 11 0
51 QSO B1641+3958 QSO 16 43 26.1469019400 +39 53 14.335117728   18.44 18.32     ~ 39 0
52 QSO B1641+399B QSO 16 43 34.8466896624 +39 53 46.431942720   19.56 19.50     ~ 43 0
53 4C 26.51 BLL 16 59 24.1494935184 +26 29 36.941671104   18.39 18.17     ~ 67 1
54 ICRF J170717.7+453610 Sy1 17 07 17.7533536464 +45 36 10.552931460   17.18 17.01 17   ~ 73 1
55 7C 172454.10+395928.00 QSO 17 26 32.6614139592 +39 57 02.249099496   17.8 18.0 18.1   ~ 23 1
56 7C 175204.59+352828.00 QSO 17 53 50.7284129616 +35 27 58.432082796   18.0 17.5 18.1   ~ 11 1
57 7C 180003.10+440418.00 QSO 18 01 32.31481983 +44 04 21.9002442   16.8 17.90 15.29   ~ 207 1
58 4C 40.37 QSO 18 20 49.0868953152 +40 51 38.895680340     18.0     ~ 21 1
59 4C 22.47 QSO 18 21 13.5695967792 +22 51 14.580901260     18.0     ~ 25 1
60 4C 56.27 BLL 18 24 07.06837171 +56 51 01.4908155   18.9 19.30 16.48   ~ 482 1
61 ICRF J182931.7+484446 Sy1 18 29 31.7809732968 +48 44 46.160168892   17.05 16.81 16.860   ~ 688 1
62 QSO B1951+498 QSO 19 52 35.81271029 +49 58 13.9726105     17.5     ~ 51 1
63 QSO B2037-005 QSO 20 39 52.1743522320 -00 24 47.101661280   18.29 18.19     ~ 35 0
64 2MASS J21145258+0607423 Sy1 21 14 52.5774985320 +06 07 42.433198104   16.06 15.77     ~ 212 0
65 QSO B2112+0556 QSO 21 15 16.5758899104 +06 08 40.846444440   18.9 18.9     ~ 18 0
66 QSO B2113+0536 QSO 21 16 08.9495813472 +05 48 38.919303504   19.6 18.9     ~ 10 0
67 QSO B2141+040 QSO 21 44 22.9014948504 +04 16 26.315898204   17.1 17.50     ~ 12 0
68 ICRF J214518.7+111527 Sy1 21 45 18.77506615 +11 15 27.3123630   18.35 18.20 16.29   ~ 90 1
69 [VV96] J214935.3+075625 QSO 21 49 35.26379334 +07 56 25.3472004   18.5 18.0     ~ 21 1
70 4C 08.64 QSO 22 12 01.58926251 +08 19 16.5069022     18.5     ~ 118 1
71 4C 08.66 QSO 22 20 08.6765675904 +08 59 01.648794084   18 18.6     ~ 23 1
72 QSO B2232+132 QSO 22 34 33.5271049320 +13 32 04.102438524   20.58 20.30     ~ 17 0
73 FBQS J2237+0110 QSO 22 37 34.152 +01 10 34.78   21.36 20.97     ~ 29 0
74 LBQS 2238+0133 QSO 22 40 52.6605924048 +01 49 26.129661348     18.1     ~ 11 0
75 4C 13.84 QSO 22 49 44.9479841472 +13 31 09.487382124   17.7 19.25 18.0   ~ 57 1
76 4C 09.72 BLL 23 11 17.7546073272 +10 08 15.756513972   16.15 16.00     ~ 194 1
77 QSO B2350-026 QSO 23 52 52.4 -02 20 16     17.5     ~ 1 0
78 ICRF J235409.1-001947 Sy1 23 54 09.1759863576 -00 19 47.954748072   18.80 18.48 18.1   ~ 113 1
79 LBQS 2354+0013 * 23 57 29.9126085360 +00 29 44.476950876   17.4   18.5   B8: 11 0

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