2003MNRAS.346..304J

Query : 2003MNRAS.346..304J

2003MNRAS.346..304J - Mon. Not. R. Astron. Soc., 346, 304-318 (2003/November-3)

The B -band luminosities of quasar host galaxies.

JAHNKE K. and WISOTZKI L.

Abstract (from CDS):

We report on the analysis of B -band imaging data of 57 low-redshift quasi-stellar objects (quasars/QSOs) and Seyfert 1 galaxies selected from the Hamburg/ESO Survey, for which host-galaxy-dependent selection biases are greatly reduced compared with other optical surveys. Only one object in the sample is known to be radio-loud.

We adopted a procedure to remove the active galactic nuclei (AGN) contribution by subtracting a scaled point spread function from each QSO image. To reclaim the integrated host galaxy flux we correct for oversubtraction based on simulations. This method is quite insensitive to the host galaxy morphological type, which we can unambiguously establish for 15 of the 57 objects.

The quasar host galaxies are detected in all cases. The hosts are very luminous, ranging in absolute magnitude MBfrom -19.0 to -23.8, with an average of MB,gal-21.5, considerably above L * for field galaxies. For the luminous QSO subsample with MB< -23 the average host absolute magnitude is MB,gal-23.0, while for the complementary low-luminosity AGN we obtain MB,gal-21.2, roughly equal to L *.

The luminous host galaxies in the sample are typically ∼1 mag brighter than expected when inferring B -band luminosities from studies of similar objects at longer wavebands. We argue that this mismatch is not likely to be explained by selection effects, but favours host galaxy colours significantly bluer than those of inactive galaxies. Although published B -band data are scant, this result and the findings of other authors are in good agreement.


Abstract Copyright: 2003 RAS

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

Simbad objects: 57

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Number of rows : 57
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 LEDA 767650 Sy1 03 19 48.5587896024 -26 27 12.764497968   12.5 15.9 12.3   ~ 26 0
2 IRAS 03450+0055 Sy1 03 47 40.1887730832 +01 05 14.048016576   15.09 14.64     ~ 103 2
3 LEDA 3095652 Sy1 03 50 19.1831545920 -22 17 21.443052876 16.15 16.93 16.35 16.0   ~ 17 1
4 ESO 359-19 Sy2 04 05 01.6841808552 -37 11 15.061344360   15.24   14.96   ~ 56 0
5 LEDA 3095676 Sy1 04 16 49.6569835344 -25 44 40.734879936   16.8   16.8   ~ 10 0
6 LEDA 3095685 Sy1 04 29 16.9705431720 -26 54 39.379837896 17.34 17.74 16.93 15.4   ~ 12 0
7 LEDA 658733 Sy1 04 40 44.7308491440 -34 41 51.152165736   17.8 17.1     ~ 10 0
8 LEDA 3095699 Sy1 04 46 15.0528834624 -38 55 06.856688136   17.3   17.6   ~ 10 0
9 CTS 49 Sy1 04 46 37.4525555928 -34 43 46.490028708 15.03 15.87 15.62     ~ 10 0
10 LEDA 680259 Sy1 04 47 27.5859263352 -33 09 07.141937760   12.9   14.8   ~ 12 0
11 LEDA 3095701 Sy1 04 48 31.2068785272 -33 45 54.673171272   17.3   17.60   ~ 9 0
12 LEDA 773783 Sy1 05 04 22.0029943224 -25 54 15.929583156   14.5   15.5   ~ 10 0
13 RX J0507.9-3411 Sy1 05 07 55.8149165358 -34 11 37.160346422   18.4       ~ 5 0
14 LEDA 759731 Sy1 05 09 35.4025128360 -27 06 22.851821124   17.2       ~ 7 0
15 MCG-05-13-017 Sy2 05 19 35.8118941104 -32 39 27.923120568   13.81 13.37 12.73   ~ 274 1
16 LEDA 3095719 Sy1 05 28 02.2635160248 -41 46 32.771495136   16.1   16.0   ~ 10 0
17 LEDA 3095721 Sy1 05 31 17.7604581936 -39 16 45.504542136   15.5   15.2   ~ 12 0
18 HE 0952-1552 Sy1 09 54 29.5810200552 -16 06 51.212835756   15.1   14.4   ~ 20 0
19 NAME Sextans Ring Sy1 10 02 00.0053784264 -08 09 44.683274736   15.48 14.64     ~ 41 0
20 LEDA 3095922 Sy1 10 11 59.0388062544 -16 36 32.797832112   17.2       ~ 8 0
21 LEDA 3095943 Sy1 10 22 24.8550754800 -14 28 57.605576484   15.7   15.3   ~ 17 0
22 PKS 1020-10 BLL 10 22 32.8200967176 -10 37 44.309640648   16.25 16.11 16.0   ~ 144 1
23 HE 1029-1401 Sy1 10 31 54.3173785536 -14 16 51.378102372   14.08 13.86     ~ 140 0
24 LEDA 929778 Sy1 10 46 17.1090548040 -14 02 27.561198228   17.1       ~ 18 0
25 LEDA 3096004 Sy1 10 59 35.5687445616 -15 06 41.789037096   18.4       ~ 6 0
26 HE 1106-2321 Sy1 11 08 52.9563581184 -23 38 11.473704636   16.94 15.1 15.62   ~ 15 0
27 LEDA 3096028 Sy1 11 12 50.9164727568 -19 26 22.050525984   16.77       ~ 14 0
28 CTS 11 Sy1 11 17 04.0376610432 -29 02 30.314179932   16.5       ~ 20 0
29 2MASX J11353202-1328306 Sy1 11 35 32.0469332160 -13 28 30.549923364   16.7   15.8   ~ 8 0
30 LEDA 37161 Sy1 11 52 03.5494748736 -11 22 24.091043304   13.7 15.5 12.5   ~ 138 0
31 HE 1201-2408 Sy1 12 03 37.6179845431 -24 25 40.931898718   16.74       ~ 13 0
32 2MASX J12161880-1650392 Sy1 12 16 18.7715220312 -16 50 39.023057616   17.2       ~ 6 0
33 LEDA 3096112 Sy1 12 16 42.715 -30 36 00.63   11.9   12.3   ~ 9 0
34 CTS 97 Sy1 12 19 35.0214004824 -13 57 15.354547380   16.3       ~ 13 0
35 LEDA 157814 Sy2 12 29 41.9123550672 -31 54 09.965273508   12.3   13.3   ~ 10 0
36 HE 1228-1637 Sy1 12 31 24.8687240472 -16 53 50.299799424   16.0   16.53   ~ 20 0
37 LEDA 993527 Sy1 12 38 08.3811147216 -09 14 11.763921660   14.0   13.6   ~ 11 0
38 LEDA 3096174 Sy1 12 40 28.3241417232 -23 09 26.652919968   13.3   13.1   ~ 14 0
39 LEDA 3096179 Sy1 12 42 37.0457532336 -24 42 39.904776396   16.73       ~ 18 0
40 CTS 13 Sy1 12 48 21.2 -27 25 50   15.5   15.8   ~ 10 0
41 IC 3834 Sy1 12 51 32.3735000688 -14 13 16.020799176   17.0       ~ 45 1
42 NGC 4748 Sy1 12 52 12.4650934680 -13 24 53.262019944   14.73 14.03 12.82   ~ 287 0
43 6dFGS gJ125701.7-140903 Sy1 12 57 01.7395368096 -14 09 02.952259056   17.2   17.09   ~ 8 0
44 LEDA 83771 Sy1 13 03 22.2243595128 -13 41 33.190445112   15.48 15.02 12.8   ~ 36 0
45 2MASX J13122858-2517005 Sy1 13 12 28.6073892888 -25 17 00.658470768   16.91   16.12 15.53 ~ 13 0
46 LEDA 45913 Sy1 13 13 05.7810527568 -11 07 42.369955428   15.48 15.15 13.4   ~ 159 0
47 ATO J199.6512-10.7382 Sy1 13 18 36.2994081048 -10 44 17.654493192   16.1       ~ 17 0
48 MCG-04-32-029 Sy2 13 31 13.8377562624 -25 24 09.903879756   14.75 15.7 13.37 13.60 ~ 70 0
49 LEDA 995990 Sy2 13 37 39.5661793440 -09 02 28.371792408   15.9   15.3   ~ 19 0
50 LEDA 84044 Sy1 13 41 12.8835794640 -14 38 40.247801448   15.02 14.63 11.5   ~ 98 0
51 LEDA 3096295 Sy1 13 51 29.5017024528 -18 13 46.336515492   11.3   13.7   ~ 65 0
52 LEDA 3096299 Sy1 13 53 10.0647176640 -28 02 12.300832284   17.0   15.8   ~ 10 0
53 [VV96] J140824.6-155928 QSO 14 08 24.4566512184 -15 59 28.767267240   15.6 16.5     ~ 15 0
54 [OKM2018] SWIFT J1419.0-1323 Sy1 14 19 03.8170514760 -13 10 44.785212600   16.46 16.10 16.50   ~ 245 0
55 LEDA 992964 Sy1 14 23 10.3248947952 -09 17 03.600073140   16.2   15.9   ~ 11 0
56 HE 1434-1600 Sy1 14 36 49.6204486608 -16 13 41.196438048   17.08 15.8 16.00   ~ 63 1
57 ATO J231.2144-10.0998 Sy1 15 24 51.4658778480 -10 05 59.481717900   17.66 15.8 16.65   ~ 14 0

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