2005ApJ...627...97O

Query : 2005ApJ...627...97O

2005ApJ...627...97O - Astrophys. J., 627, 97-124 (2005/July-1)

Host galaxy evolution in radio-loud active galactic nuclei.

O'DOWD M. and URRY C.M.

Abstract (from CDS):

We investigate the luminosity evolution of the host galaxies of radio-loud active galactic nuclei (AGNs) through Hubble Space Telescope imaging of 72 BL Lac objects, including new Space Telescope Imaging Spectrograph (STIS) imaging of nine z>0.6 BL Lacs. With their intrinsically low accretion rates and their strongly beamed jets, BL Lac objects provide a unique opportunity to probe host galaxy evolution independent of the biases and ambiguities implicit in quasar studies. We find that the host galaxies of BL Lac objects evolve strongly, consistent with passive evolution from a period of active star formation in the range 0.5≲z≲2.5, and inconsistent with either passive evolution from a high formation redshift or a nonevolving population. This evolution is broadly consistent with that observed in the hosts of other radio-loud AGNs and inconsistent with the flatter luminosity evolution of quiescent early-type galaxies and radio-quiet hosts. This indicates that active star formation and hence galaxy interactions are associated with the formation of radio-loud AGNs and that these host galaxies preferentially accrete less material after their formation epoch than galaxies without powerful radio jets. We discuss possible explanations for the link between merger history and the incidence of a radio jet.

Abstract Copyright: ∼

Journal keyword(s): Black Hole Physics - Galaxies: BL Lacertae Objects: General - Galaxies: Active - Galaxies: Evolution - Galaxies: Jets - Galaxies: Quasars: General

CDS comments: T. 1 : J1422+580 (1ES 1421+58.2) z = 0.683 is a misprint for 0.638

Simbad objects: 65

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Number of rows : 65
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 B0118-272 BLL 01 20 31.6628068344 -27 01 24.636341064   15.89 15.56 15.49   ~ 288 1
2 QSO B0122+09 BLL 01 24 44.5398641328 +09 18 49.289559588     19.98 18.5   ~ 58 0
3 1RXS J014126.8-092857 BLL 01 41 25.83216015 -09 28 43.6742470   16.94 16.55 17.21   ~ 302 1
4 RX J0232.8+2017 BLL 02 32 48.6148874688 +20 17 17.486717388     18.00 13.96   ~ 387 1
5 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
6 1RXS J030103.8+344109 BLL 03 01 03.7549027896 +34 41 01.078942128     18.53     ~ 63 0
7 RX J0319.8+1845 BLL 03 19 51.8082475320 +18 45 34.562475432           ~ 223 1
8 1RXS J033311.8-361942 BLL 03 33 12.2677895088 -36 19 46.662911112   19.94   17.99   ~ 59 0
9 QSO B0347-121 BLL 03 49 23.1862105584 -11 59 27.366035532   18.74 18.2 17.46   ~ 245 1
10 NVSS J035154-370341 BLL 03 51 54.5527158480 -37 03 44.193747492       16.4   ~ 48 1
11 PMN J0416+0105 BLL 04 16 52.4945693352 +01 05 23.899102620   16.86 16.38 16   ~ 302 1
12 1RXS J042218.2+195047 BLL 04 22 18.3397702069 +19 50 54.920278805           ~ 90 0
13 RX J0507.9+6737 BLL 05 07 56.1631660632 +67 37 24.225299292       17.2   ~ 196 1
14 1RXS J050938.3-040037 BLL 05 09 38.1791014104 -04 00 45.682814376   19.10   17.92   ~ 78 0
15 ESO 362-21 BLL 05 22 57.98464178 -36 27 30.8512953   15.26 14.62 14.48   ~ 873 2
16 PKS J0550-3216 BLL 05 50 40.5705144672 -32 16 16.484718648   16.07 15.5     ~ 424 1
17 QSO B0607+710 BLL 06 13 43.3821991056 +71 07 26.779488276   19.6 19.61 19.1   ~ 82 0
18 RX J0710.5+5908 BLL 07 10 30.0683697888 +59 08 20.371772544   17.38 16.52 15.1   ~ 249 1
19 QSO J0738+1742 BLL 07 38 07.39375312 +17 42 18.9981506   16.76 16.22 15.78   ~ 1045 1
20 QSO B0737+744 BLL 07 44 05.3750968872 +74 33 58.256429832     16.89 16.6   ~ 144 0
21 RX J0809.8+5218 BLL 08 09 49.1868285744 +52 18 58.249938744   16.11 15.59 14.6   ~ 302 1
22 4C 22.21 BLL 08 23 24.7592164368 +22 23 03.287299236   20.22 19.57 19.7   ~ 186 1
23 QSO B0823+033 BLL 08 25 50.33835759 +03 09 24.5199749   17.81 17.23 16.91   ~ 352 1
24 QSO B0829+047 BLL 08 31 48.8770033992 +04 29 39.086842884   17.10 16.4 14.55   ~ 511 2
25 6C 082850+492334 BLL 08 32 23.21674252 +49 13 21.0382979   20.17 19.63     ~ 173 1
26 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
27 RX J0930.6+4950 BLL 09 30 37.5737660328 +49 50 25.549611036   18.81 18.25 17.3   ~ 128 0
28 6C 095456+654857 BLL 09 58 47.2451872176 +65 33 54.819354600     17.0 15.75   ~ 771 1
29 QSO B0958+210 BLL 10 01 42.4110018648 +20 48 18.289244880     19.84 18.6   ~ 33 0
30 RX J1015.0+4926 BLL 10 15 04.1396533776 +49 26 00.706055496   16.56 16.15 14.58   ~ 400 3
31 RX J1031.3+5053 BLL 10 31 18.5251007784 +50 53 35.817278064   17.25 16.98 16.3   ~ 210 2
32 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
33 QSO B1133+16 BLL 11 36 17.5377147576 +16 01 52.252739544     20.04 19.5   ~ 39 0
34 QSO B1144-3755 BLL 11 47 01.37071212 -38 12 11.0235229   19.03 16.2 16.72   ~ 320 1
35 PMN J1215+0732 BLL 12 15 10.9765816512 +07 32 04.676330688     16.0 14.8   ~ 114 1
36 Ton 605 HB* 12 16 53.6748432768 +30 04 08.692883544   16.110 15.98     B 223 0
37 RX J1217.8+3007 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   G7 516 1
38 PG 1218+304 BLL 12 21 21.9426947832 +30 10 37.158534012   16.50 15.85 15.7   ~ 497 1
39 RX J1224.4+2436 BLL 12 24 24.1862962656 +24 36 23.499792828   17.93 17.37     ~ 162 1
40 QSO B1229+6430 BLL 12 31 31.3949261640 +64 14 18.280701600   18.36 17.62 14.3   ~ 160 2
41 1RXS J125135.2-295824 BLL 12 51 34.8343469232 -29 58 43.146193476       18.5   ~ 32 0
42 NAME 1ES 1249+17.4W Bla 12 51 46.740 +17 11 13.93     18.5 18.4   ~ 17 1
43 RX J1257.5+2412 BLL 12 57 31.9330943592 +24 12 40.164677136       15.7   ~ 91 0
44 US 371 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 917 1
45 RX J1409.3+5939 BLL 14 09 23.4933928320 +59 39 40.624242444   19.60 19.05     ~ 83 1
46 6C 141804+543700 BLL 14 19 46.5974051952 +54 23 14.787857796   16.17 15.65 14.16   ~ 630 1
47 RX J1422.6+5801 BLL 14 22 38.8822521768 +58 01 55.514940024   18.49 18.15 17.7   ~ 86 0
48 RX J1428.5+4240 BLL 14 28 32.6090008440 +42 40 21.048123396   16.95 16.45 14.4   ~ 549 1
49 RX J1442.8+1200 BLL 14 42 48.2771008152 +12 00 40.348597716   18.34 17.63 15.2   ~ 189 1
50 ESO 514-1 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 815 3
51 RX J1535.0+5320 BLL 15 35 00.7962236712 +53 20 37.302992988   19.18 18.75 18.8   ~ 73 1
52 4C 09.57 BLL 17 51 32.81857326 +09 39 00.7284066   17.46 16.78 15.57   ~ 1007 1
53 Z 340-35 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 909 1
54 1RXS J185351.0+671356 BLL 18 53 52.0667262720 +67 13 55.016841792       17.1   ~ 52 1
55 QSO B1959+650 BLL 19 59 59.8520303688 +65 08 54.652536492     12.8 11.21   ~ 699 2
56 8C 2007+777 BLL 20 05 30.9987913056 +77 52 43.248139536     16.5 17.36   ~ 474 1
57 PKS J2009-4849 BLL 20 09 25.3903899240 -48 49 53.725051056   15.75 12.81 11.41   ~ 604 1
58 PMN J2145+0720 BLL 21 45 52.2999532008 +07 19 27.205685508       16   ~ 120 1
59 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
60 Z 403-19 BLL 22 04 17.6521146096 +04 40 02.027503020   16.20 15.2 10.2   ~ 223 2
61 QSO B2240-260 BLL 22 43 26.4084975168 -25 44 30.680406312   18.59   16.80   ~ 205 1
62 QSO B2254+0727 BLL 22 57 17.30311778 +07 43 12.3025633   17.07 16.36     ~ 317 1
63 QSO B2326+174 BLL 23 29 03.3191370096 +17 43 30.526001112     16.8 16.7   ~ 33 2
64 QSO B2344+514 BLL 23 47 04.8372110928 +51 42 17.877513168     15.50 10.7   ~ 500 1
65 QSO B2356-309 BLL 23 59 07.9034996184 -30 37 40.671098544   18.414 16.44 16.795   ~ 318 2

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