2015A&A...574A...4V


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.14CEST14:25:53

2015A&A...574A...4V - Astronomy and Astrophysics, volume 574A, 4-4 (2015/2-1)

Radio continuum properties of luminous infrared galaxies. Identifying the presence of an AGN in the radio.

VARDOULAKI E., CHARMANDARIS V., MURPHY E.J., DIAZ-SANTOS T., ARMUS L., EVANS A.S., MAZZARELLA J.M., PRIVON G.C., STIERWALT S. and BARCOS-MUNOZ L.

Abstract (from CDS):

Luminous infrared galaxies (LIRGs) are systems enshrouded in dust, which absorbs most of their optical/UV emission and radiates it again in the mid- and far-infrared. Radio observations are largely unaffected by dust obscuration, enabling us to study the central regions of LIRGs in an unbiased manner. The main goal of this project is to examine how the radio properties of local LIRGs relate to their infrared spectral characteristics. Here we present an analysis of the radio continuum properties of a subset of the Great Observatories All-sky LIRG Survey (GOALS), which consists of 202 nearby systems (z<0.088). Our radio sample consists of 35 systems, containing 46 individual galaxies, that were observed at both 1.49 and 8.44GHz with the VLA with a resolution of about 1 arcsec (FWHM). The aim of the project is to use the radio imagery to probe the central kpc of these LIRGs in search of active galactic nuclei (AGN). We used the archival data at 1.49 and 8.44GHz to create radio-spectral-index maps using the standard relation between flux density Sν and frequency ν, Sν–α, where α is the radio spectral index. By studying the spatial variations in α, we classified the objects as radio-AGN, radio-SB, and AGN/SB (a mixture). We identified the presence of an active nucleus using the radio morphology, deviations from the radio/infrared correlation, and spatially resolved spectral index maps, and then correlated this to the usual mid-infrared ([NeV]/[NeII] and [OIV]/[NeII] line ratios and equivalent width of the 6.2µm PAH feature) and optical (BPT diagram) AGN diagnostics. We find that 21 out of the 46 objects in our sample (∼45%) are radio-AGN, 9 out of the 46 (∼20%) are classified as starbursts (SB) based on the radio analysis, and 16 (∼35%) are AGN/SB. After comparing to other AGN diagnostics we find 3 objects out of the 46 (∼7%) that are identified as AGN based on the radio analysis, but are not classified as such based on the mid-infrared and optical AGN diagnostics presented in this study.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: starburst - galaxies: nuclei - radio continuum: galaxies - infrared: galaxies

VizieR on-line data: <Available at CDS (J/A+A/574/A4): table1.dat images/*>

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 - 2019
#notes
1 NGC 34 Sy2 00 11 06.612 -12 06 28.33   14.14 13.52     ~ 298 0
2 Mrk 1502 Sy1 00 53 34.9326560879 +12 41 35.927159668   14.41 14.03     ~ 1004 1
3 IC 1623 IG 01 07 47.2 -17 30 25   15       ~ 253 1
4 IC 1623B rG 01 07 47.569 -17 30 25.04   15.04   14.07   ~ 57 1
5 MCG-03-04-014 EmG 01 10 08.979 -16 51 09.69   15   13.96   ~ 87 0
6 UGC 833 G 01 18 08.866 +11 22 54.32   14.30       ~ 48 0
7 MCG+02-04-025 LIN 01 20 02.654 +14 21 41.73   14.9       ~ 127 0
8 IRAS 01364-1042 LIN 01 38 52.890 -10 27 11.35   16.77   15.74   ~ 103 0
9 NGC 660 LIN 01 43 02.350 +13 38 44.45   12.02 11.16     ~ 500 2
10 ZW III 35 Sy2 01 44 30.516 +17 06 09.18   15.24 14.81     ~ 218 0
11 NGC 695 G 01 51 14.3476899804 +22 34 55.956806358   13.7       ~ 163 1
12 UGC 2369 PaG 02 54 00.9 +14 58 31   14.6       ~ 105 1
13 UGC 2369 N GiP 02 54 01.7316870016 +14 58 35.610821927   15.5       ~ 29 1
14 UGC 2369 S GiP 02 54 01.80 +14 58 14.0           ~ 95 1
15 NGC 1222 SBG 03 08 56.747 -02 57 18.76   13.3   13.0 13.2 ~ 166 0
16 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3458 3
17 IRAS 03359+1523 G 03 38 47.140 +15 32 53.75   16.3       ~ 98 0
18 IC 342 SBG 03 46 48.514 +68 05 45.98   10.5       ~ 1360 1
19 ESO 550-25 PaG 04 21 20.0 -18 48 48           ~ 50 0
20 NGC 1614 AGN 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 591 0
21 2MASX J05210136-2521450 Sy2 05 21 01.3987198411 -25 21 45.269338983   15.47 14.75     ~ 418 0
22 Mrk 3 Sy2 06 15 36.458 +71 02 15.24 14.21 14.03 12.97     ~ 824 3
23 NGC 2146 SBG 06 18 37.710 +78 21 25.27 11.67 11.38 10.59     ~ 601 2
24 2MAXI J0808+757 Sy1 08 10 58.6637281539 +76 02 42.449416413   15.03 14.71     ~ 401 0
25 NGC 2623 LIN 08 38 24.016 +25 45 16.29 14.10 13.99 13.36     ~ 425 1
26 NAME IRAS F08572+3915 NW LIN 09 00 25.364 +39 03 54.23     16.66     ~ 359 1
27 UGC 4881 IG 09 15 55.5 +44 19 58   14.9       ~ 152 0
28 UGC 5101 Sy1 09 35 51.694 +61 21 10.52   15.20 15.50     ~ 494 4
29 NVSS J102000+081335 rG 10 20 00.231 +08 13 34.30   17.5       ~ 136 1
30 NGC 3256 IG 10 27 51.284 -43 54 13.55   11.83 11.33 10.62 11.9 ~ 730 2
31 NGC 3310 AGN 10 38 45.857 +53 30 11.89   12.45 12.15     ~ 719 1
32 2XMM J105918.1+243234 LIN 10 59 18.128 +24 32 34.74   15.7       ~ 232 1
33 APG 148 IG 11 03 53.892 +40 50 59.89   14.29       ~ 153 1
34 IC 2746 Sy2 11 21 47.1180110072 +11 44 18.908935072   15.38 14.93     ~ 197 0
35 IC 2810 AGN 11 25 45.055 +14 40 35.98   15.4       ~ 102 0
36 IC 2810b AGN 11 25 49.5403849716 +14 40 06.595744108   15.4       ~ 32 0
37 IC 694 G 11 28 27.312 +58 34 42.29   18.2       ~ 232 2
38 NAME NGC 3690 West GiP 11 28 30.69 +58 33 33.4   11.8       ~ 603 4
39 NGC 3690 IG 11 28 31.326 +58 33 41.80   13.19 12.86     ~ 862 4
40 NAME NGC 3690 East AGN 11 28 33.07 +58 33 54.2   11.8       ~ 608 4
41 NGC 4088 GiP 12 05 34.2188954517 +50 32 21.031900467   11.2       ~ 355 1
42 NGC 4151 Sy1 12 10 32.5771747733 +39 24 21.057727323   12.18 11.48     ~ 3305 2
43 [CAB2000] Ns AGN 12 13 45.928 +02 48 39.00           ~ 23 0
44 LEDA 39024 LIN 12 13 46.107 +02 48 41.50           ~ 308 1
45 PB 3894 Sy1 12 14 17.6737003918 +14 03 13.182526431   14.46 14.19     ~ 723 0
46 NGC 4385 AGN 12 25 42.8108150606 +00 34 21.279221919   14.63 14.12 13.1 12.8 ~ 240 0
47 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5241 1
48 NGC 4676 IG 12 46 10.18 +30 43 53.7   14.1       ~ 294 0
49 Mrk 231 Sy1 12 56 14.2340989340 +56 52 25.238555193   14.68 13.84     ~ 1732 3
50 NGC 4818 SBG 12 56 48.907 -08 31 31.08   11   10.88   ~ 131 0
51 UGC 8335 W G 13 15 30.732 +62 07 44.89   14.4       ~ 98 1
52 UGC 8335 IG 13 15 32.8 +62 07 37           ~ 46 0
53 UGC 8335 E AGN 13 15 35.061 +62 07 28.77   15       ~ 86 0
54 IC 883 SBG 13 20 35.380 +34 08 21.84   14.8       ~ 360 1
55 Mrk 266B LIN 13 38 17.3501948813 +48 16 31.903051043   14.19 13.42     ~ 61 0
56 Mrk 266NE Sy2 13 38 17.777 +48 16 41.02   15.0       ~ 39 0
57 NGC 5256 PaG 13 38 17.8 +48 16 41   14.1 13.42     ~ 390 2
58 NGC 5257 H2G 13 39 52.273 +00 50 22.48   13.7 12.99     ~ 176 0
59 APG 240 PaG 13 39 55.2 +00 50 13   12.6       ~ 144 0
60 Mrk 273 Sy2 13 44 42.070 +55 53 13.17   15.68 14.91     ~ 811 3
61 2XMM J135315.8+634546 Sy1 13 53 15.8310776491 +63 45 45.682560611   14.54 14.28     ~ 355 0
62 2MASX J14373831-1500239 Sy1 14 37 38.317 -15 00 23.97   16.58 16.40     ~ 243 1
63 [CGM90] IRAS 14348-1447 NE GiP 14 37 38.35 -15 00 21.3           ~ 17 0
64 UGC 9618 S GiP 14 57 00.3215005307 +24 36 24.151624394   14.3 15.3     ~ 62 2
65 UGC 9618 IG 14 57 00.4 +24 36 44   14.3       ~ 108 1
66 UGC 9618 N GiP 14 57 00.666 +24 37 02.67     15.7     ~ 50 1
67 NAME IRAS F15163+4255 NW LIN 15 18 06.123 +42 44 44.59   15.0 15     ~ 173 1
68 Mrk 848A GiP 15 18 06.349 +42 44 38.34           ~ 3 0
69 2MASX J15265942+3558372 LIN 15 26 59.425 +35 58 37.23   15.61       ~ 242 1
70 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2616 4
71 NGC 6090 PaG 16 11 40.3 +52 27 21   14.0       ~ 390 2
72 NGC 6286 GiG 16 58 31.381 +58 56 10.21   14.2       ~ 162 1
73 2MASX J17142047+5310317 G 17 14 20.478 +53 10 31.80           ~ 79 0
74 Mrk 1513 Sy1 21 32 27.8163185343 +10 08 19.250705656   14.92 14.64     ~ 527 0
75 NGC 7252 IG 22 20 44.7751096408 -24 40 41.905677809 12.26 12.46 12.06 11.57   ~ 653 1
76 NAME South America H2G 22 51 49.307 -17 52 23.96   16.97       ~ 281 3
77 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1842 3
78 IC 5298 Sy2 23 16 00.6756811155 +25 33 24.081139422   15.0       ~ 171 0
79 NGC 7714 GiP 23 36 14.099 +02 09 18.07   14.91 14.36     ~ 717 1
80 UGC 12812 GiP 23 51 18.628 +20 34 40.92   15.5       ~ 36 0
81 [WZX98] 23488+2018B G 23 51 25.6 +20 35 00           ~ 4 0
82 Mrk 331 GiP 23 51 26.731 +20 35 10.22   14.9       ~ 208 0

    Equat.    Gal    SGal    Ecl

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2019.10.14-14:25:53

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