2006ApJ...639..157W

Query : 2006ApJ...639..157W

2006ApJ...639..157W - Astrophys. J., 639, 157-172 (2006/March-1)

Mid-infrared properties of low-metallicity blue compact dwarf galaxies from the Spitzer Infrared Spectrograph.

WU Y., CHARMANDARIS V., HAO L., BRANDL B.R., BERNARD-SALAS J., SPOON H.W.W. and HOUCK J.R.

Abstract (from CDS):

We present a Spitzer-based mid-infrared (MIR) study of a large sample of blue compact dwarfs (BCDs) using the Infrared Spectrograph (IRS), including the first MIR spectrum of I Zw 18, the archetype for the BCD class and among the most metal-poor galaxies known. We show the spectra of polycyclic aromatic hydrocarbon (PAH) emission in a low-metallicity environment. We find that the equivalent widths (EWs) of PAHs at 6.2, 7.7, 8.6, and 11.2 µm are generally weaker in BCDs than in typical starburst galaxies and that the fine-structure line ratio, [Ne III]/[Ne II], has a weak anticorrelation with the PAH EW. A much stronger anticorrelation is shown between the PAH EW and the product of the [Ne III]/[Ne II] ratio and the UV luminosity density divided by the metallicity. We conclude that the PAH EW in metal-poor high-excitation environments is determined by a combination of PAH formation and destruction effects.

Abstract Copyright: ∼

Journal keyword(s): ISM: Dust, Extinction - Galaxies: Abundances - Galaxies: Dwarf - Galaxies: Starburst - Infrared: 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 - 2024 		#notes
1 ESO 350-38 Sy2 00 36 52.489 -33 33 17.23   14.31 14.41 13.49   ~ 378 0
2 LEDA 3034 Sy1 00 51 49.4034133416 +00 33 53.016656040   17.22 16.65     ~ 35 0
3 Z 412-24 H2G 01 44 41.3 +04 53 26 15.07 15.50 15.16 14.86 14.58 ~ 99 0
4 LEDA 7422 EmG 01 58 09.3923460120 -00 06 37.007607240           ~ 30 0
5 LEDA 8377 H2G 02 11 23.38 +02 20 29.7   18       ~ 43 0
6 NGC 1140 EmG 02 54 33.5271666624 -10 01 43.142143908 12.41 12.84 12.49 13.6 13.5 ~ 286 1
7 SBSG 0335-052B G 03 37 44.04 -05 02 40.2   16.77 16.65   16.79 ~ 185 1
8 SBSG 0335-052 bCG 03 37 44.06 -05 02 40.2     16.65     ~ 472 1
9 NGC 1569 IG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1241 3
10 UGCA 116 H2G 05 55 42.645 +03 23 32.23 10.74 11.68 11.46   11.82 ~ 538 0
11 SCHG 0618-402 H2G 06 20 03.8353 -40 16 42.997           ~ 26 0
12 LEDA 21818 AG? 07 47 46.0 +59 00 26   18.5       ~ 16 0
13 LEDA 2551475 AG? 07 58 26.0 +56 54 24   17.5       ~ 9 0
14 NGC 2537 AG? 08 13 14.643 +45 59 23.25 12.18 12.50 11.69 11.66   ~ 301 2
15 SBSG 0813+582A G 08 17 +58.0           ~ 2 0
16 LEDA 2790884 bCG 08 25 55.5166210656 +35 32 31.833368556   18.2       ~ 120 1
17 Mrk 116 PaG 09 34 02.1 +55 14 25           ~ 1106 1
18 UGC 5101 Sy2 09 35 51.6045544584 +61 21 11.589382368   15.20 15.50     ~ 572 4
19 LEDA 2790898 EmG 09 38 24.0462571368 +49 18 16.937297892   17.9       ~ 10 0
20 LEDA 27886 QSO 09 44 17.101 +54 11 28.83   19.5       ~ 71 0
21 LEDA 28108 Sy1 09 47 13.0938493584 +56 06 07.341032196     18.46     ~ 18 1
22 UGC 5421 LSB 10 04 41.7190006128 +55 18 40.934602944   16.5       ~ 48 0
23 LEDA 29998 EmG 10 16 24.516 +37 54 45.96   16.5       ~ 52 0
24 2MASX J11184746+5926018 G 11 18 47.4495524856 +59 26 01.804983144   17.52       ~ 8 0
25 NAME Arp's Galaxy AG? 11 19 34.344 +51 30 12.17   17.3       ~ 71 0
26 LEDA 34916 AG? 11 22 37.760 +58 19 42.61   19.5       ~ 19 0
27 UGC 6456 bCG 11 27 59.90 +78 59 39.0   14.50       ~ 335 1
28 MCG+10-17-011 AG? 11 32 02.6164558680 +57 22 36.292387908   17       ~ 59 1
29 LEDA 35998 G 11 37 43.6 +59 35 35   17.53       ~ 10 0
30 Mrk 1450 H2G 11 38 35.6552554896 +57 52 26.636623644   15.5       ~ 121 1
31 LEDA 36120 AG? 11 39 11.529 +60 30 45.04   18       ~ 14 0
32 LEDA 36216 AG? 11 40 32.087 +58 38 32.07   17.80       ~ 23 0
33 LEDA 36507 G 11 44 16.7 +57 24 31   19       ~ 8 0
34 LEDA 37102 Sy1 11 51 33.3537570144 -02 22 21.893502576   17       ~ 167 0
35 LEDA 2815971 G 11 52 33.9 +59 22 55   18.0       ~ 8 0
36 MCG+10-17-097 LIN 11 53 28.8637554840 +59 41 56.713652592   15.5       ~ 14 0
37 LEDA 2815986 AG? 12 02 02.4750603336 +54 15 51.049196784   18.0       ~ 76 0
38 LEDA 2815987 G 12 03 22.6 +58 41 36   18.5       ~ 10 0
39 SBSG 1210+537 AG? 12 12 55.8714787848 +53 27 37.648427688   16.5       ~ 17 0
40 LEDA 2527021 AG? 12 13 35.90 +56 08 35.4   18.5       ~ 7 0
41 LEDA 39137 G 12 14 48.5 +56 05 15   19.5       ~ 6 0
42 LEDA 39402 H2G 12 17 17.093 -28 02 32.67   17       ~ 135 0
43 LEDA 39938 G 12 21 28.9719497880 +55 38 23.412282792   18.5       ~ 10 1
44 SBSG 1221+545B AG? 12 24 23.02 +54 14 47.4   18       ~ 12 0
45 LEDA 101471 EmG 12 24 36.7369432538 +37 24 35.833921444           ~ 36 0
46 ESO 380-27 H2G 12 25 46.95 -36 14 00.7   17.47   16.52   ~ 100 1
47 LEDA 41248 AG? 12 30 07.36 +56 05 13.2   19.5       ~ 8 0
48 RMB 132 bCG 12 30 48.6089418912 +12 02 42.805457196     16.78   16.44 ~ 99 0
49 LEDA 42164 G 12 37 36.9118687200 +55 41 04.291556892   18.5       ~ 9 0
50 NAME CVn I dwA GiC 12 38 40.06 +32 46 00.5 16.91 16.66 16.73 16.62   ~ 232 0
51 LEDA 45469 H2G 13 07 37.4 -35 38 36   17       ~ 30 0
52 LEDA 169741 H2G 13 21 19.6991553744 +32 08 24.832025232   19.123       ~ 28 0
53 LEDA 46982 bCG 13 25 48.66 -11 36 37.8           ~ 85 0
54 MCG+07-29-060 QSO 14 17 01.716 +43 30 13.52   15.6       ~ 172 0
55 LEDA 51563 EmG 14 26 28.1792667120 +38 22 58.646272548   18.4       ~ 16 0
56 Mrk 475 EmG 14 39 05.4743306976 +36 48 21.838203540   17.0       ~ 106 0
57 NAME CG 1457+42 H2G 14 59 20.5652224656 +42 16 10.351225236   16.51 15.94     ~ 23 0
58 UGC 9883 AG? 15 31 21.284 +47 01 24.43   16.0       ~ 22 0
59 SBSG 1533+574B GiP 15 34 14.16 +57 17 03.5   16.6       ~ 28 1
60 LEDA 2816159 G 15 39 56.9 +58 15 34   19.5       ~ 7 0
61 LEDA 2816162 G 15 42 55.9 +58 55 09     19.5     ~ 8 0
62 Mrk 1499 bCG 16 35 20.996 +52 12 52.20   15.6       ~ 59 0
63 * ksi Dra PM* 17 53 31.7295427958 +56 52 21.510944948 6.14 4.93 3.75 2.92 2.33 K2III 272 0
64 NAME Kinman Dwarf bCG 22 30 36.7959714600 -00 06 36.924915456 16.85 17.35 16.87   16.65 ~ 65 2
65 * alf Lac PM* 22 31 17.5014213452 +50 16 56.969913082 3.78 3.78 3.77 3.77 3.80 A1V 260 0
66 NGC 7714 GiP 23 36 14.1257730600 +02 09 18.197422668   14.91 14.36     ~ 765 1
67 APG 284 PaG 23 36 19 +02 09.3   12.6       ~ 607 0

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