2011AJ....141..156I

Query : 2011AJ....141..156I

2011AJ....141..156I - Astron. J., 141, 156 (2011/May-0)

Subaru and Gemini high spatial resolution infrared 18 µm imaging observations of nearby luminous infrared galaxies.

IMANISHI M., IMASE K., OI N. and ICHIKAWA K.

Abstract (from CDS):

We present the results of a ground-based, high spatial resolution infrared 18 µm imaging study of nearby luminous infrared galaxies (LIRGs), using the Subaru 8.2 m and Gemini-South 8.1 m telescopes. The diffraction-limited images routinely achieved with these telescopes in the Q band (17-23 µm) allow us to investigate the detailed spatial distribution of infrared emission in these LIRGs. We then investigate whether the emission surface brightnesses are modest, as observed in starbursts, or are so high that luminous active galactic nuclei (AGNs; high emission surface brightness energy sources) are indicated. The sample consists of 18 luminous buried AGN candidates and starburst-classified LIRGs identified in earlier infrared spectroscopy. We find that the infrared 18 µm emission from the buried AGN candidates is generally compact, and the estimated emission surface brightnesses are high, sometimes exceeding the maximum value observed in and theoretically predicted for a starburst phenomenon. The starburst-classified LIRGs usually display spatially extended 18 µm emission and the estimated emission surface brightnesses are modest, within the range sustained by a starburst phenomenon. The general agreement between infrared spectroscopic and imaging energy diagnostic methods suggests that both are useful tools for understanding the hidden energy sources of the dusty LIRG population.

Abstract Copyright: ∼

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

CDS comments: In paragraph 4.2 IRAS 20511-4250 is a misprint for IRAS 20551-4250, and in paragraph 5.2.2 IRAS 00091-0736 is a misprint for IRAS 00091-0738.

Simbad objects: 47

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Number of rows : 47
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 LEDA 89873 EmG 00 11 43.305 -07 22 07.37   18.41       ~ 58 0
2 2MASX J00212652-0839261 LIN 00 21 26.5135306416 -08 39 25.967117268   18.37       ~ 114 1
3 * 48 Psc SB* 00 28 12.7028998704 +16 26 42.245708064   7.616 6.039     K5III 45 0
4 * 12 Cet * 00 30 02.3584197912 -03 57 26.377933896 9.19 7.28 5.72     K5III 55 0
5 Mrk 1502 Sy1 00 53 34.9331107632 +12 41 35.929269132   14.41 14.03     ~ 1167 1
6 IRAS 01003-2238 Sy2 01 02 49.9920152640 -22 21 57.262136544   18.62 18.9 17.83   ~ 164 0
7 IC 1623A EmG 01 07 47.2 -17 30 28   14.34   12.71   ~ 55 1
8 IC 1623B Sy1 01 07 47.569 -17 30 25.04   15.04   14.07   ~ 72 1
9 * eta Cet HB* 01 08 35.3913324413 -10 10 56.151936084 5.80 4.61 3.45 2.61 2.03 K2-IIIb 223 0
10 HD 8498 V* 01 23 30.9578857464 -30 56 44.219130684   7.418 5.819     M0III 58 0
11 6dFGS gJ013221.4-072908 H2G 01 32 21.41 -07 29 08.5   19.04       ~ 60 0
12 HD 10550 V* 01 42 43.5115527552 -03 41 24.718341768   6.366 4.982     K2/3IIICNII 61 0
13 Mrk 1014 Sy1 01 59 50.2534701768 +00 23 40.864244784   16.08 15.87     ~ 572 0
14 NGC 1377 GiG 03 36 39.077 -20 54 08.14   13.38   12.12   ~ 224 0
15 * gam Eri LP? 03 58 01.7658213057 -13 30 30.653301544 6.52 4.54 2.94 1.68 0.68 M0III-IIIb 189 0
16 IRAS 04103-2838 LIN 04 12 19.4458581600 -28 30 24.933273876     16.9     ~ 70 0
17 NGC 1614 Sy1 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 667 0
18 * 31 Lyn LP* 08 22 50.1094369374 +43 11 17.270175202 7.71 5.80 4.25 3.05 2.17 K4+III 155 0
19 NGC 2623 LIN 08 38 24.016 +25 45 16.29 14.10 13.99 13.36     ~ 498 1
20 Ton 951 Sy1 08 47 42.4485615096 +34 45 04.482515304   14.83 14.50     ~ 466 0
21 NAME IRAS F08572+3915 NW LIN 09 00 25.364 +39 03 54.23     16.66     ~ 420 1
22 * alf Lyn PM* 09 21 03.3002104870 +34 23 33.213441656 6.63 4.69 3.14 1.91 1.01 K6III 211 0
23 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5858 6
24 HD 112213 V* 12 55 19.4317990920 -42 54 56.639555352   7.093 5.445     M0III 48 0
25 NGC 4945 Sy2 13 05 27.279 -49 28 04.44   9.31 14.40 7.55   ~ 1475 2
26 ESO 219-28 AG? 13 06 33.73 -49 41 26.3   13.01   11.64 11.8 ~ 19 0
27 IC 883 SBG 13 20 35.4 +34 08 22   14.8       ~ 400 1
28 NGC 5256B LIN 13 38 17.3501417856 +48 16 31.909717416   14.19 13.42     ~ 84 0
29 NGC 5256A Sy2 13 38 17.7814755960 +48 16 41.113184700   15.0       ~ 48 0
30 NGC 5256 PaG 13 38 17.81 +48 16 41.2   14.1 13.42     ~ 430 1
31 NGC 5253 AGN 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33 13.47 ~ 1365 4
32 V* AW CVn LP? 13 51 47.4749903810 +34 26 39.265009533 8.36 6.40 4.74 3.21 1.93 M3-IIIa 117 0
33 * pi. Hya PM* 14 06 22.2980035207 -26 40 56.501676257 5.45 4.41 3.28 2.40 1.85 K2-IIIFe-0.5 139 0
34 2MASX J15265942+3558372 LIN 15 26 59.442 +35 58 37.01   15.61       ~ 272 1
35 * nu.01 Boo * 15 30 55.7595992928 +40 49 58.974269340   6.617 5.026     K4.5IIIbBa0.5 118 0
36 HD 182709 * 19 31 10.9707380784 -68 26 02.112868752   7.618 5.961     K4/5III 22 0
37 NAME Super Antennae Sy2 19 31 21.4272801984 -72 39 21.442847832   17.39 16.37 14.65   ~ 302 2
38 * alf Ind PM* 20 37 34.0321723878 -47 17 29.405217299 4.90 4.11 3.11     K0III-IV 132 0
39 * 7 Aqr * 20 56 54.0265592448 -09 41 51.150476328   6.97 5.48     K4III 42 0
40 ESO 286-19 LIN 20 58 26.8183783008 -42 38 59.411838156   14.79 14.79 14.20   ~ 291 0
41 Mrk 1513 Sy1 21 32 27.8162556672 +10 08 19.252365396   14.92 14.64     ~ 611 0
42 * 26 Aqr * 21 42 10.1125326360 +01 17 06.914950836   7.102 5.641     K2(III) 41 0
43 Mrk 304 Sy1 22 17 12.2637639888 +14 14 20.917852980   15.02 14.66     ~ 355 0
44 ESO 602-25 Sy1 22 31 25.474 -19 02 04.27   14.27 13.73 12.90   ~ 116 0
45 * psi01 Aqr PM* 23 15 53.4940495770 -09 05 15.844964053 6.37 5.36 4.25 3.46 2.90 K1-IIIFe-0.5 244 1
46 Mrk 928A AGN 23 18 21.8 -04 24 56     15.0     ~ 44 0
47 NGC 7592 Sy2 23 18 22.0 -04 24 57           ~ 160 0

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