2015A&A...578A..47B


Query : 2015A&A...578A..47B

2015A&A...578A..47B - Astronomy and Astrophysics, volume 578A, 47-47 (2015/6-1)

Obscuration in active galactic nuclei: near-infrared luminosity relations and dust colors.

BURTSCHER L., ORBAN DE XIVRY G., DAVIES R.I., JANSSEN A., LUTZ D., ROSARIO D., CONTURSI A., GENZEL R., GRACIA-CARPIO J., LIN M.-Y., SCHNORR-MUELLER A., STERNBERG A., STURM E. and TACCONI L.

Abstract (from CDS):

We combine two approaches to isolate the AGN luminosity at near-IR wavelengths and relate the near-IR pure AGN luminosity to other tracers of the AGN. Using integral-field spectroscopic data of an archival sample of 51 local AGNs, we estimate the fraction of non-stellar light by comparing the nuclear equivalent width of the stellar 2.3µm CO absorption feature with the intrinsic value for each galaxy. We compare this fraction to that derived from a spectral decomposition of the integrated light in the central arcsecond and find them to be consistent with each other. Using our estimates of the near-IR AGN light, we find a strong correlation with presumably isotropic AGN tracers. We show that a significant offset exists between type 1 and type 2 sources in the sense that type 1 sources are 7 (10) times brighter in the near-IR at logLAGNMIR=42.5(logLAGNX=42.5). These offsets only become clear when treating infrared type 1 sources as type 1 AGNs. All AGNs have very red near- to mid-IR dust colors. This, as well as the range of observed near-IR temperatures, can be explained with a simple model with only two free parameters: the obscuration to the hot dust and the ratio between the warm and hot dust areas. We find obscurations of AVhot=5...15mag for infrared type 1 sources and AVhot=15...35mag for type 2 sources. The ratio of hot dust to warm dust areas of about 1000 is nicely consistent with the ratio of radii of the respective regions as found by infrared interferometry.

Abstract Copyright:

Journal keyword(s): radiation mechanisms: thermal - techniques: high angular resolution - techniques: imaging spectroscopy - galaxies: active - galaxies: nuclei - galaxies: Seyfert

Simbad objects: 52

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Number of rows : 52
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 289 AGN 00 52 42.365 -31 12 20.99   11.36 13.44 10.38 11.4 ~ 221 0
2 NGC 613 AGN 01 34 18.235 -29 25 06.56   10.77 12.71 9.50 10.6 ~ 385 3
3 NGC 676 Sy2 01 48 57.3181010544 +05 54 27.069537204     12     ~ 98 2
4 NGC 1052 GiP 02 41 04.7997864552 -08 15 20.761481016 11.84 11.41 10.47 10.71   ~ 1240 2
5 M 77 GiP 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4375 2
6 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1263 3
7 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1659 2
8 NGC 1386 GiP 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 498 1
9 ESO 548-81 Sy1 03 42 03.7135713768 -21 14 39.577309944   12.84 13.68 11.57   ~ 114 0
10 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 814 2
11 NGC 2110 Sy2 05 52 11.3768668776 -07 27 22.507465392   14.77 13.51 11.86   ~ 632 1
12 ESO 428-14 Sy2 07 16 31.2062162520 -29 19 28.882826364   13.28 13.52 11.61   ~ 240 4
13 NGC 2911 LIN 09 33 46.1036936016 +10 09 08.868636288   14.96 13.83     ~ 233 0
14 NGC 2974 Sy2 09 42 33.2918467632 -03 41 57.038311068   12.19   10.77   ~ 425 0
15 NGC 2992 Sy2 09 45 42.045 -14 19 34.90 13.54 13.14 12.18 12.6 12.2 ~ 835 3
16 ESO 434-40 Sy2 09 47 40.1332188528 -30 56 55.960779696   14.10 13.69 12.44   ~ 516 0
17 NGC 3081 Sy2 09 59 29.5437024336 -22 49 34.747341960   13.06 13.55 11.67 12.1 ~ 441 0
18 NGC 3169 GiP 10 14 15.0379414272 +03 27 57.941639856   13.46 12.41     ~ 349 1
19 NGC 3227 GiP 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1625 1
20 NGC 3281 Sy2 10 31 52.086 -34 51 13.40   12.62 14.02 11.17   ~ 337 0
21 NGC 3312 LIN 10 37 02.5165552728 -27 33 53.924090760   12.63 13.96     ~ 106 0
22 M 66 GiP 11 20 15.026 +12 59 28.64 9.85 9.65 8.92     ~ 1282 4
23 NGC 3783 Sy1 11 39 01.7096819040 -37 44 19.009642992   12.46 13.43 11.33 12.1 ~ 1563 0
24 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2092 1
25 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1178 0
26 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 943 2
27 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1272 2
28 NGC 4438 LIN 12 27 45.6705493536 +13 00 31.708096380 11.37 11.02 10.17     ~ 614 2
29 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 2034 2
30 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6734 3
31 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 768 1
32 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 852 1
33 M 58 SyG 12 37 43.597 +11 49 05.12 10.80 10.48 9.66     ~ 1027 2
34 NGC 4593 Sy1 12 39 39.4435107024 -05 20 39.034988448   13.95 13.15     ~ 1022 0
35 NGC 4762 LIN 12 52 56.049 +11 13 50.88   11.1       ~ 348 0
36 NAME Centaurus A Sy2 13 25 27.6039817176 -43 01 09.493008456   8.18 6.84 6.66   ~ 4281 3
37 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 458 1
38 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1108 2
39 NGC 5506 AGN 14 13 14.8761010056 -03 12 27.556909272   15.25 14.38     ~ 1051 0
40 NGC 5643 Sy2 14 32 40.778 -44 10 28.60   11.03 13.60 9.92 10.6 ~ 520 0
41 NGC 6300 Sy2 17 16 59.5418094960 -62 49 13.946588832   10.88 13.08 9.44 10.2 ~ 400 0
42 HD 176617 * 19 02 43.8674374272 -36 39 28.741027464   9.86 8.16     M3III 8 0
43 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 764 0
44 IC 5063 Sy2 20 52 02.329 -57 04 07.60   12.92 13.60 11.30   ~ 602 1
45 NGC 7130 AGN 21 48 19.5412287192 -34 57 04.492024884   12.86 13.87 11.57   ~ 421 0
46 NGC 7135 AGN 21 49 46.0013389728 -34 52 34.575955536   12.25 13.30 10.84   ~ 87 0
47 NGC 7172 Sy2 22 02 01.897 -31 52 11.60   12.72 13.61 11.15   ~ 499 1
48 IC 1459 GiP 22 57 10.6071797352 -36 27 43.992307260   10.96 11.85 9.34 10.3 ~ 602 2
49 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 2003 3
50 NGC 7496 AGN 23 09 47.2876854912 -43 25 40.279652796   11.92 13.90 10.95 11.5 ~ 251 1
51 NGC 7582 GiP 23 18 23.621 -42 22 14.06 11.62 10.92 10.62     ~ 865 2
52 NGC 7743 Sy2 23 44 21.1607807112 +09 56 02.970989664   14.19 13.28     ~ 306 0

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2022.09.27-09:31:46

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