2009ApJ...695L.103I

Query : 2009ApJ...695L.103I

2009ApJ...695L.103I - Astrophys. J., 695, L103-L106 (2009/April-2)

High-ionization Fe K emission from luminous infrared galaxies.

IWASAWA K., SANDERS D.B., EVANS A.S., MAZZARELLA J.M., ARMUS L. and SURACE J.A.

Abstract (from CDS):

The Chandra component of the Great Observatories All-Sky Luminous Infrared Galaxy Survey (GOALS) presently contains 44 luminous and ultraluminous infrared galaxies (ULIRGs) with log (LIR/L☉) = 11.73-12.57. Omitting 15 obvious active galactic nuclei (AGNs), the other galaxies are, on average, underluminous in the 2-10 keV band by 0.7 dex at a given far-infrared luminosity, compared with nearby star-forming galaxies with lower star formation rates. The integrated spectrum of these hard X-ray quiet galaxies shows strong high-ionization Fe K emission (Fe XXV at 6.7 keV), which is incompatible with X-ray binaries as its origin. The X-ray quietness and the Fe K feature could be explained by hot gas produced in a starburst, provided that the accompanying copious emission from high-mass X-ray binaries is somehow suppressed. Alternatively, these galaxies may contain deeply embedded supermassive black holes that power the bulk of their infrared luminosity and only faint photoionized gas is visible, as seen in some ULIRGs with a Compton-thick AGN.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: starburst - infrared: galaxies - X-rays: galaxies

Simbad objects: 53

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Number of rows : 53
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IRAS 00182-7112 Sy2 00 20 34.72104 -70 55 26.2488     20.6     ~ 143 0
2 IRAS 01364-1042 LIN 01 38 52.86288 -10 27 11.5848   16.77   15.74   ~ 132 0
3 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
4 ESO 203-1 AGN 04 46 49.4729569488 -48 33 30.480074640   16.40   15.51   ~ 73 0
5 ZW VII 31 rG 05 16 46.44456 +79 40 12.4320   15.8       ~ 159 1
6 IRAS 05189-2524 Sy2 05 21 01.3994605776 -25 21 45.321827832   15.47 14.75     ~ 545 0
7 ESO 255-7 EmG 06 27 22.588 -47 10 46.45   14.48   13.60   ~ 73 0
8 2MASS J07273756-0254540 AGN 07 27 37.5366009312 -02 54 54.264024396           ~ 69 0
9 2MASX J08522935-6902010 IG 08 52 29.355 -69 02 01.07   17.26   16.45   ~ 14 0
10 ESO 60-16 G 08 52 30.77 -69 01 59.8           ~ 45 0
11 LEDA 24922 AGN 08 52 32.05104 -69 01 55.2756   16.01   15.17   ~ 45 0
12 IRAS 08572+3915 LIN 09 00 25.38288 +39 03 54.2988     16.66     ~ 450 1
13 NVSS J090412-362700 rG 09 04 12.70392 -36 27 01.1412           ~ 104 1
14 NAME IRAS 09111-1007W Sy2 09 13 36.4577885664 -10 19 30.001760292   15.7 16.10     ~ 93 1
15 UGC 4881 IG 09 15 55.5 +44 19 58   14.9       ~ 178 0
16 Z 289-11 Sy2 09 35 51.6045544584 +61 21 11.589382368   15.20 15.50     ~ 617 2
17 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
18 IC 2545 Sy1 10 06 04.581 -33 53 05.55   15.27 14.27 14.25   ~ 117 0
19 NVSS J102000+081335 rG 10 20 00.1849825704 +08 13 33.648546108   17.5       ~ 167 1
20 IRAS 10565+2448 LIN 10 59 18.12811 +24 32 34.7357   15.7       ~ 302 0
21 NGC 3690 IG 11 28 31.0 +58 33 41   13.19 12.86     ~ 1015 4
22 NGC 3690B GiP 11 28 31.02 +58 33 40.7   11.8       ~ 635 4
23 NGC 3690NE AGN 11 28 33.07 +58 33 54.2   11.8       ~ 635 4
24 IRAS 12112+0305 PaG 12 13 45.98880 +02 48 39.9600           ~ 373 0
25 [CGM90] IRAS 12112+0305 NE rG 12 13 46.10735 +02 48 41.4959           ~ 369 0
26 Z 294-4 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 2096 3
27 2MASX J13150638-5509225 Sy2 13 15 06.33480 -55 09 22.7736   17.3       ~ 172 0
28 MCG+10-19-056 AGN 13 15 35.103 +62 07 28.43   15       ~ 120 1
29 IC 883 SBG 13 20 35.37960 +34 08 21.8400   14.8       ~ 421 1
30 Z 271-60 Sy2 13 44 42.1883001099 +55 53 13.596220922   15.68 14.91     ~ 958 3
31 LEDA 52270 Sy1 14 37 38.2867288488 -15 00 24.087592692   16.58 16.40     ~ 300 2
32 LEDA 89507 Sy2 14 40 59.0135478768 -37 04 31.938829896   17.72   16.48   ~ 131 1
33 MCG+04-35-018 GiP 14 57 00.3205510752 +24 36 24.138336996   14.3 15.3     ~ 83 0
34 Z 221-50 SyG 15 18 06.1187 +42 44 45.086   15.0 15     ~ 239 1
35 2MASX J15265942+3558372 LIN 15 26 59.44451 +35 58 37.0521   15.61       ~ 295 1
36 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
37 ESO 69-6 AGN 16 38 11.85408 -68 26 08.1888   16.16   14.83   ~ 72 2
38 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
39 NVSS J171420+531028 rG 17 14 20.4740967144 +53 10 31.495916892           ~ 97 1
40 LEDA 60189 LIN 17 23 21.96264 -00 17 00.8088   15.1       ~ 454 0
41 LEDA 84885 Sy1 18 32 41.177 -34 11 27.46   15.63   13.66   ~ 142 1
42 ESO 593-8 rG 19 14 31.09656 -21 19 08.7564   14.70   13.70   ~ 88 2
43 NAME Super Antennae Sy2 19 31 21.4272801984 -72 39 21.442847832   17.39 16.37 14.65   ~ 318 3
44 NVSS J193222-040000 rG 19 32 22.2962473608 -04 00 01.797249204   18.85   17.04   ~ 122 0
45 LEDA 166649 AGN 19 56 35.7922773768 +11 19 05.126583432           ~ 65 0
46 Z 448-20 G 20 57 23.62800 +17 07 44.5980   15.2       ~ 190 0
47 ESO 286-19 LIN 20 58 26.8183783008 -42 38 59.411838156   14.79 14.79 14.20   ~ 318 0
48 NVSS J211129+582307 rG 21 11 29.30016 +58 23 07.8324           ~ 53 0
49 ESO 239-2 AGN 22 49 39.8505632256 -48 50 58.076200284   14.46       ~ 80 0
50 NAME South America rG 22 51 49.27872 -17 52 24.0600   16.97       ~ 348 3
51 ESO 148-2 Sy2 23 15 46.76280 -59 03 15.6924   14.94 14.73 13.95   ~ 289 1
52 ESO 77-14 IG 23 21 03.5561888880 -69 13 01.088615424   16.52   15.27   ~ 59 0
53 LEDA 90429 SyG 23 39 01.26960 +36 21 08.5896   16.17       ~ 232 1

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