2011A&A...536A..36A


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.10CEST02:18:27

2011A&A...536A..36A - Astronomy and Astrophysics, volume 536A, 36-36 (2011/12-1)

Mid-infrared properties of nearby low-luminosity AGN at high angular resolution.

ASMUS D., GANDHI P., SMETTE A., HOENIG S.F. and DUSCHL W.J.

Abstract (from CDS):

We present high spatial resolution mid-infrared (MIR) 12µm continuum imaging of low-luminosity active galactic nuclei (LLAGN) obtained with VLT/VISIR. Our goal is to determine whether the nuclear MIR emission of LLAGN is consistent with the existence of a dusty obscuring torus, the key component of the unification model for AGN. Based on available hard X-ray luminosities and the previously known tight correlation between the hard X-ray and 12µm luminosities, we selected a sample of 17 nearby LLAGN without available VISIR N-band photometry. Combined with archival VISIR data of 9 additional LLAGN with available X-ray measurements, the dataset represents the bulk of southern LLAGN currently detectable from the ground in the MIR. Of the 17 observed LLAGN, 7 are detected, while upper limits are derived for the 10 non-detections. This increases the total number of AGN detected with VLT/VISIR to more than 50. All detections except NGC 3125 appear point-like on a spatial scale of ∼0.35". The detections do not significantly deviate from the known MIR-X-ray correlation but exceed it by a factor of ∼10 down to luminosities <1041erg/s with a narrow scatter (σ=0.35dex, Spearman rank ρ=0.92). The latter is dominated by the uncertainties in the X-ray luminosity. Interestingly, a similar correlation with a comparable slope but with a normalization differing by ∼2.6 orders of magnitude has been found for local starburst galaxies. In addition, we compared the VISIR data with lower spatial resolution data from Spitzer/IRS and IRAS. By using a scaled starburst template spectral energy distribution and the polycyclic aromatic hydrocarbon (PAH) 11.3µm emission line, we were able to restrict the maximum nuclear star-formation contamination of the VISIR photometry to ≲30% for 75% of the LLAGN. Exceptions are NGC 1097 and NGC 1566, which may possess unresolved strong PAH emission. Furthermore, the MIR-X-ray luminosity ratio is unchanged over more than 4 orders of magnitude in accretion rate within the uncertainties. These results are consistent with the existence of the dusty torus in all observed LLAGN, although a jet or accretion disk as origin of the MIR emission cannot be excluded. Finally, because the MIR-X-ray correlation holds for all LLAGN and Seyferts, this is a very useful empirical tool for converting between the MIR and X-ray powers of these nuclei.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - galaxies: active - infrared: galaxies - galaxies: nuclei - galaxies: Seyfert - X-rays: galaxies

Simbad objects: 67

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Number of rows : 67

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 ESO 113-45 Sy1 01 23 45.7630391439 -58 48 20.811630442   14.08 13.83 13.34   ~ 774 0
2 NGC 526 Sy1 01 23 54.3778199024 -35 03 55.695504754   14.76 14.60 13.46   ~ 297 1
3 ESO 297-18 Sy2 01 38 37.141 -40 00 41.23   14.28   12.96   ~ 73 1
4 NGC 676 Sy2 01 48 57.316 +05 54 27.01     12     ~ 94 2
5 NGC 863 Sy1 02 14 33.5610949475 -00 46 00.180128181   14.48 13.81 17.9   ~ 574 0
6 NGC 1052 GiP 02 41 04.79851 -08 15 20.7517 11.84 11.41 10.47 10.71   ~ 1147 2
7 M 77 GiP 02 42 40.771 -00 00 47.84 9.70 9.61 8.87 10.1 9.9 ~ 4100 2
8 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1178 3
9 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1531 2
10 NGC 1386 GiP 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 461 1
11 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1543 0
12 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 671 1
13 NGC 1566 Sy1 04 20 00.4020009055 -54 56 16.578104141 10.29 10.19 9.73 9.21 10.1 ~ 722 2
14 NGC 1667 Sy2 04 48 37.205 -06 19 11.47   13.66 12.86 11.72   ~ 336 1
15 ESO 5-4 Sy2 06 05 41.721 -86 37 55.02   13.55   11.88 12.2 ~ 124 0
16 ESO 209-12 Sy1 08 01 57.9736077076 -49 46 42.394360438   15.31 15.3 13.78   ~ 65 0
17 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 3972 5
18 NGC 3081 Sy2 09 59 29.5436045645 -22 49 34.748021329   13.06 13.55 11.67 12.1 ~ 412 0
19 NGC 3125 H2G 10 06 33.318 -29 56 07.32 13.03 13.45 13.00 12.50 13.4 ~ 216 1
20 ESO 263-13 Sy2 10 09 48.1881615625 -42 48 40.538299552   14.94 14.95 13.29   ~ 83 0
21 NGC 3281 Sy2 10 31 52.086 -34 51 13.40   12.62 14.02 11.17   ~ 315 0
22 NGC 3312 LIN 10 37 02.549 -27 33 54.17   12.63 13.96     ~ 96 0
23 NGC 3393 Sy2 10 48 23.467 -25 09 43.30   13.10 13.95 11.67 12.2 ~ 348 3
24 NGC 3783 Sy1 11 39 01.7095761008 -37 44 19.008597647   12.46 13.43 11.33 12.1 ~ 1489 0
25 NGC 4235 Sy1 12 17 09.8844228368 +07 11 29.665090752   14.70 13.60     ~ 365 0
26 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1115 0
27 M 61 Sy2 12 21 54.9275149050 +04 28 25.588335799 10.07 10.18 9.65     ~ 873 2
28 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1188 2
29 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1960 2
30 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6233 3
31 NGC 4507 Sy2 12 35 36.6328010225 -39 54 33.661858548   12.95 13.54 11.70 12.4 ~ 439 0
32 M 58 SyG 12 37 43.597 +11 49 05.12 10.80 10.48 9.66     ~ 971 2
33 NGC 4593 Sy1 12 39 39.4435521178 -05 20 39.035028119   13.95 13.15     ~ 953 0
34 M 104 LIN 12 39 59.43185 -11 37 22.9954 9.51 9.55 8.00 8.05   ~ 1276 3
35 IC 3639 Sy2 12 40 52.8357581136 -36 45 21.046225445   13.01 13.50 11.87 12.7 ~ 228 1
36 NGC 4698 Sy2 12 48 22.9112380605 +08 29 14.648866444   13.24 12.27     ~ 444 0
37 ESO 323-32 Sy2 12 53 20.3092757460 -41 38 08.273024193   13.89 13.61 12.29   ~ 68 0
38 NGC 4941 Sy2 13 04 13.1053484000 -05 33 05.754194531   13.18 12.23 10.74   ~ 305 0
39 NGC 4992 Sy2 13 09 05.597 +11 38 02.85   14.6       ~ 93 0
40 MCG-03-34-064 Sy2 13 22 24.485 -16 43 42.09   14   13.16   ~ 261 2
41 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 4004 3
42 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 426 1
43 ESO 383-35 Sy1 13 35 53.7686909139 -34 17 44.139127597   13.89 13.61 8.9   ~ 1381 0
44 NGC 5363 GiP 13 56 07.244 +05 15 16.92 12.59 12.12 10.51     ~ 209 0
45 NGC 5728 Sy2 14 42 23.928 -17 15 11.41   14.34 13.40     ~ 499 0
46 NGC 5813 LIN 15 01 11.265 +01 42 07.09 12.00 11.45 10.46 10.06   ~ 579 1
47 NGC 5995 Sy2 15 48 24.9486951203 -13 45 27.258674402   14.66 13.69 13.17   ~ 129 0
48 ESO 138-1 Sy2 16 51 20.2687785665 -59 14 04.287486933   14.35 13.63 13.02   ~ 109 0
49 NGC 6300 Sy2 17 16 59.473 -62 49 13.98   10.88 13.08 9.44 10.2 ~ 361 0
50 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 3474 3
51 ESO 103-35 Sy2 18 38 20.3207055742 -65 25 39.142872479   14.75 14.53 13.24   ~ 274 0
52 ESO 141-55 Sy1 19 21 14.1471805047 -58 40 12.981632705   14.36 13.64 13.28   ~ 321 0
53 NGC 6814 Sy1 19 42 40.5857305428 -10 19 25.102133898   15.33 14.21 11.7 11.3 ~ 722 0
54 Mrk 509 Sy1 20 44 09.7504131334 -10 43 24.724854084   13.35 13.12 10.7   ~ 1132 0
55 IC 5063 Sy2 20 52 02.329 -57 04 07.60   12.92 13.60 11.30   ~ 547 1
56 Mrk 1513 Sy1 21 32 27.8163185343 +10 08 19.250705656   14.92 14.64     ~ 541 0
57 NGC 7172 Sy2 22 02 01.897 -31 52 11.60   12.72 13.61 11.15   ~ 468 1
58 NGC 7213 Sy1 22 09 16.2106632887 -47 10 00.082166299   10.97 12.08 10.50 10.6 ~ 597 0
59 LEDA 68751 Sy1 22 23 49.7 -02 06 13   16.93 15.77 16.02   ~ 433 2
60 NGC 7314 Sy1 22 35 46.1969940596 -26 03 01.574026329   11.62 13.11 10.61 11.4 ~ 506 0
61 IC 1459 GiP 22 57 10.60677155 -36 27 43.9953697   10.96 11.85 9.34 10.3 ~ 573 2
62 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1892 3
63 NGC 7590 GiP 23 18 54.836 -42 14 20.64   12.12 13.76 11.06 11.8 ~ 259 1
64 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 403 1
65 NGC 7674 Sy2 23 27 56.6974755223 +08 46 44.238278540 13.84 13.92 13.23 12.64   ~ 638 4
66 NGC 7679 Sy2 23 28 46.670 +03 30 40.99   13.2       ~ 234 1
67 NGC 7743 Sy2 23 44 21.1586928811 +09 56 02.970129689   14.19 13.28     ~ 289 0

    Equat.    Gal    SGal    Ecl

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2020.08.10-02:18:27

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