2011A&A...532A.125T


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST07:37:29

2011A&A...532A.125T - Astronomy and Astrophysics, volume 532A, 125-125 (2011/8-1)

Narrow-line Seyfert1 galaxies: an amasing class of AGN.

TARCHI A., CASTANGIA P., COLUMBANO A., PANESSA F. and BRAATZ J.A.

Abstract (from CDS):

Narrow-line Seyfert 1 (NLS1) galaxies are a class of active galactic nuclei (AGN) that have all the properties of type 1 Seyfert galaxies but show peculiar characteristics, including the narrowest Balmer lines, strongest Fe II emission, and extreme properties in the X-rays. Line and continuum radio observations provide an optimal tool to access the (often) optically obscured innermost regions of AGN and reveal the kinematics of the gas around their central engines. We investigate the interplay between the peculiar NLS1 class of AGN and the maser phenomenon, to help us understand the nature of the maser emission in some NLS1s where water maser emission has been detected. We observed a sample of NLS1 galaxies with the Green Bank Telescope in a search for water maser emission at 22GHz. We also reduced and analysed archival Green Bank Telescope and Very Large Array data and produced 22-GHz spectra for the five NLS1 galaxies with detected maser emission. In particular, we imaged the maser and nuclear radio continuum of NGC 5506 at subarcsec scales with the Very Large Array. We discovered maser emission in two NLS1 galaxies: IGR J16385-2057, and IRAS 03450+0055. In addition to the three previously known maser detections in the NLS1s Mrk 766, NGC 4051, and NGC 5506, this yields a water maser detection rate in NLS1 galaxies of ∼7% (5/71). This value rises significantly to ∼21% (5/24) when considering only NLS1 galaxies at recessional velocities less than 10000 km/s. For NGC 4051 and NGC 5506, we find that the water maser emission is located within 5 and 12pc, respectively, of nuclear radio continuum knots, which are interpreted as core-jet structures. The water maser detection rate in NLS1s is surprisingly high, much higher than the detection rate obtained for type 1 AGN and similar to those in Seyfert 2 and low-ionization nuclear emission-line region galaxies. The masers in NGC 4051 and NGC 5506 are nuclear and associated with the AGN, either with an accretion disk, a radio jet, or a nuclear outflow. The apparent lack of high-velocity maser features and evidence, recently reported, of radiative outflows and radio jets in the host galaxies seems to favour interpretation as a jet or an outflow. A similar association is also seemingly true for the maser in Mrk 766, IGR J16385-2057, and IRAS 03450+0055, although, in these cases, without radio interferometric measurements we cannot rule out an off-nuclear origin of the emission.

Abstract Copyright:

Journal keyword(s): masers - galaxies: active - galaxies: nuclei - galaxies: Seyfert - radio lines: galaxies

Simbad objects: 82

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Number of rows : 82

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 NGC 262 Sy2 00 48 47.1414900 +31 57 25.083955 14.04 13.90 13.06 8.53   ~ 673 3
2 Mrk 1502 Sy1 00 53 34.9326560879 +12 41 35.927159668   14.41 14.03     ~ 1036 1
3 Ton S 180 Sy1 00 57 20.2038086128 -22 22 56.577563819   14.60 14.34 15.23   ~ 270 0
4 Mrk 359 Sy1 01 27 32.5219447154 +19 10 43.837247537   14.89 14.22     ~ 273 0
5 2MFGC 1336 Sy1 01 46 44.8291737481 -00 40 43.127002199   17.71 17.44 12.6   ~ 65 0
6 Mrk 1044 Sy1 02 30 05.5224714146 -08 59 53.208069457   14.74 14.29 13.981 13.585 ~ 219 0
7 NGC 1052 GiP 02 41 04.79851 -08 15 20.7517 11.84 11.41 10.47 10.71   ~ 1143 2
8 M 77 GiP 02 42 40.771 -00 00 47.84 9.70 9.61 8.87 10.1 9.9 ~ 4093 2
9 NGC 1194 Sy2 03 03 49.110 -01 06 13.50   15.29 14.18     ~ 198 0
10 2MASX J03305218+0538253 Sy1 03 30 52.1823869806 +05 38 25.551427863   16.64 16.03     ~ 32 0
11 IRAS 03450+0055 Sy1 03 47 40.1887172045 +01 05 14.046919358   15.09 14.64     ~ 74 0
12 2MASX J04344151+4014219 Sy1 04 34 41.5355522851 +40 14 21.497074957     15.2     ~ 39 0
13 Mrk 618 Sy1 04 36 22.2984932129 -10 22 33.987352636   15.08 14.51 10.7   ~ 223 0
14 2MASS J04442877+1221118 Sy1 04 44 28.7751627499 +12 21 11.718874511           ~ 45 0
15 2MASX J05002077+0916555 Sy1 05 00 20.7737802326 +09 16 55.668741011     16.58     ~ 31 0
16 2E 1210 Sy1 05 01 48.6160191134 -22 53 23.244856277   15.73 15.13     ~ 23 0
17 2MASX J05295547+4434388 Sy1 05 29 55.5104441287 +44 34 39.227223962           ~ 36 0
18 UGC 3478 Sy1 06 32 47.1728499941 +63 40 25.284482690   13.3       ~ 77 0
19 UGC 3789 GiG 07 19 30.892 +59 21 18.48   13.3       ~ 111 0
20 2MASS J07524558+2617357 Sy1 07 52 45.5994909544 +26 17 35.774337662   17.14 16.94     ~ 32 0
21 Mrk 382 Sy1 07 55 25.2939598975 +39 11 09.911049036   16.45 16.11     ~ 162 0
22 MCG+04-22-042 Sy1 09 23 43.0006235873 +22 54 32.569231798   16.23 15.82     ~ 102 0
23 Mrk 110 Sy1 09 25 12.8479868736 +52 17 10.386808297   16.82 16.41     ~ 510 0
24 Mrk 705 Sy1 09 26 03.2700194281 +12 44 03.727016859   15.15 14.60     ~ 274 0
25 Mrk 707 Sy1 09 37 01.0469474034 +01 05 43.750303841   16.86 16.64     ~ 121 0
26 2E 2182 Sy1 09 45 29.3703942230 +09 36 10.413431898   17.13 16.61     ~ 48 0
27 Mrk 124 Sy1 09 48 42.6774843040 +50 29 31.386519068   16.95 16.60     ~ 114 0
28 Mrk 1239 Sy1 09 52 19.168 -01 36 44.10   14.99 14.39 11.2   ~ 288 0
29 RX J100508+84205 Sy1 10 05 17.1797036354 +84 20 43.761855484   18.3       ~ 19 0
30 QSO B1011-040 Sy1 10 14 20.6737918236 -04 18 40.372348306   15.49 15.5     ~ 113 0
31 2MASX J10194946+3322041 Sy2 10 19 49.4845099574 +33 22 03.715035784   15.9       ~ 35 0
32 Mrk 142 Sy1 10 25 31.2788890554 +51 40 34.868795739   16.33 16.12     ~ 232 0
33 7C 103144.10+395402.00 Sy1 10 34 38.5975589813 +39 38 28.181434249   17.37 16.90     ~ 303 1
34 2MASX J10404390+3300589 Sy1 10 40 43.9221028260 +33 00 59.231339082   17.02 16.62     ~ 23 0
35 IC 2746 Sy2 11 21 47.1180110072 +11 44 18.908935072   15.38 14.93     ~ 200 0
36 Mrk 739E Sy1 11 36 29.3 +21 35 45   14.86 14.08     ~ 36 0
37 MCG+06-26-012 Sy1 11 39 13.9164485223 +33 55 51.138959033   17.38 16.98     ~ 82 0
38 Mrk 42 Sy1 11 53 41.7727871132 +46 12 42.171866526   16.24 15.45     ~ 192 0
39 NGC 4051 Sy1 12 03 09.6098828919 +44 31 52.693714606   11.08 12.92 9.94   ~ 1992 1
40 PB 3894 Sy1 12 14 17.6737003918 +14 03 13.182526431   14.46 14.19     ~ 739 0
41 NGC 4253 Sy1 12 18 26.5155239433 +29 48 46.518670434   14.34 13.57     ~ 931 1
42 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2115 3
43 2MASX J12193086+0643348 Sy1 12 19 30.8718267870 +06 43 34.451589191   17.35 17.10     ~ 41 0
44 2E 1223.5+2522 Sy1 12 26 03.55 +25 06 12.8   16.3 17.3     ~ 19 0
45 IC 3599 Sy1 12 37 41.1939866364 +26 42 27.492074834   15.7 16.5     ~ 154 0
46 LBQS 1244+0238 Sy1 12 46 35.2527388863 +02 22 08.784237661   16.57 16.37     ~ 254 0
47 NGC 4748 Sy1 12 52 12.4652452198 -13 24 53.262777193   14.73 14.03 12.82   ~ 212 0
48 Mrk 783 Sy1 13 02 58.773 +16 24 27.59   16.04 15.55     ~ 103 0
49 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3782 4
50 2MASX J13411287-1438407 Sy1 13 41 12.8835055963 -14 38 40.246508971   15.02 14.63 11.5   ~ 62 0
51 Mrk 69 Sy1 13 46 08.1046844938 +29 38 10.492013600   16.45 15.93     ~ 71 0
52 2E 3140 Sy1 13 48 34.9544288185 +26 31 09.794884131   17.86 17.43     ~ 42 0
53 2MASX J14062191+2223462 Sy1 14 06 21.8899286041 +22 23 46.515082049   16.62 16.42     ~ 205 0
54 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1008 2
55 [MRN2004] NGC 5506 B0 Rad 14 13 14.83953 -03 12 27.6599           ~ 2 0
56 [MRN2004] NGC 5506 B1 Rad 14 13 14.8960 -03 12 27.709           ~ 2 0
57 [MRN2004] NGC 5506 B2 Rad 14 13 14.8980 -03 12 27.659           ~ 2 0
58 NGC 5506 AGN 14 13 14.901 -03 12 27.22   15.25 14.38     ~ 992 0
59 Mrk 684 Sy1 14 31 04.7823224993 +28 17 14.127794327   15.36 14.68     ~ 86 0
60 Mrk 478 Sy1 14 42 07.4713423763 +35 26 22.939531895   14.91 14.58     ~ 484 0
61 2MASX J14510879+2709272 Sy1 14 51 08.7649690311 +27 09 26.964855405   15.01 15.01     ~ 154 0
62 IRAS 15091-2107 Sy1 15 11 59.8049084727 -21 19 01.535589057   15.73 14.83 11.6   ~ 120 0
63 QSO B1519-065 QSO 15 22 28.7155286350 -06 44 40.824708347   14.8 14.60     ~ 37 0
64 Mrk 486 Sy1 15 36 38.4013129866 +54 33 33.214684833   15.21 14.78     ~ 248 0
65 6dFGS gJ154856.8-045934 Sy1 15 48 56.8020193188 -04 59 33.594217796   16.4 16.40 16.85   ~ 87 0
66 Mrk 493 Sy1 15 59 09.6228325606 +35 01 47.568001984   15.69 15.06     ~ 263 0
67 2MASX J16383091-2055246 Sy1 16 38 30.9119540441 -20 55 24.562939907   16.88   15.13   ~ 41 0
68 2MASX J16540817+3925328 Sy1 16 54 08.1528184299 +39 25 33.308588645   17.78 17.44     ~ 39 0
69 6C 170204+454510 Sy1 17 03 30.3826208591 +45 40 47.167625574   16.0       ~ 120 2
70 2MASX J17450463+4802401 Sy1 17 45 04.5965170816 +48 02 40.041339817   15.9       ~ 17 0
71 2MASX J17465994+6836392 Sy1 17 46 59.941 +68 36 39.22   15.47 15.01     ~ 79 0
72 Mrk 507 Sy1 17 48 38.423 +68 42 16.06   16.33 15.45     ~ 130 1
73 2MASS J18181039+5343460 Sy1 18 18 10.3935689724 +53 43 45.981282443   15.2       ~ 18 0
74 2MASX J18324966+5340219 Sy1 18 32 49.6958807124 +53 40 22.086322034   15.9       ~ 17 0
75 Mrk 896 Sy1 20 46 20.8416130527 -02 48 45.360486154   15.27 14.61     ~ 120 0
76 IRAS 21262+5643 Sy1 21 27 45.3943647524 +56 56 34.913660916       16.6   ~ 128 0
77 2E 2210.2+1827 Sy1 22 12 37.0400036877 +18 42 27.943987761     16.73     ~ 17 0
78 UGC 12163 Sy1 22 42 39.3364258078 +29 43 31.301194419   14.86 14.16     ~ 616 1
79 2MASS J22493955+1100290 Sy1 22 49 39.5462450708 +11 00 28.933901656   15.8       ~ 15 0
80 2MASX J22573900-3656063 Sy1 22 57 39.0247421955 -36 56 06.521071890   16.59 16.0 15.64   ~ 55 0
81 2MAXI J2300+250 Sy1 22 59 32.9152084376 +24 55 05.921458292   16.8       ~ 60 0
82 2MASX J23383708-0028105 Sy2 23 38 37.0984512206 -00 28 10.483784475   16.83 16.27     ~ 22 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-07:37:29

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