2003ApJ...598..969W

Query : 2003ApJ...598..969W

2003ApJ...598..969W - Astrophys. J., 598, 969-981 (2003/December-1)

Chandra observation of the edge-on galaxy NGC 3556 (M 108): violent galactic disk-halo interaction revealed.

WANG Q.D., CHAVES T. and IRWIN J.A.

Abstract (from CDS):

We present a 60 ks Chandra ACIS-S observation of the isolated edge-on spiral galaxy NGC 3556, together with a multiwavelength analysis of various discrete X-ray sources and diffuse X-ray features. Among 33 discrete X-ray sources detected within the IB=25 mag/arcsec2 isophote ellipse of the galaxy, we identify a candidate for the galactic nucleus, an ultraluminous X-ray source that might be an accreting intermediate-mass black hole, a possible X-ray binary with a radio counterpart, and two radio-bright giant H II regions. We detect large amounts of extraplanar diffuse X-ray emission, which extend about 10 kpc radially in the disk and ≳4 kpc away from the galactic plane. The diffuse X-ray emission exhibits significant substructures, possibly representing various blown-out superbubbles or chimneys of hot gas heated in massive star-forming regions. This X-ray-emitting gas has temperatures in the range of ~(2-7)x106 K and has a total cooling rate of ∼2x1040 ergs/s. The energy can be easily supplied by supernova blast waves in the galaxy. These results show NGC 3556 to be a galaxy undergoing vigorous disk-halo interaction. The halo in NGC 3556 is considerably less extended, however, than that of NGC 4631, in spite of many similarities between the two galaxies. This may be due to the fact that NGC 3556 is isolated, whereas NGC 4631 is interacting. Thus, NGC 3556 presents a more pristine environment for studying the disk-halo interaction.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: General - Galaxies: Individual: NGC Number: NGC 3556 - Galaxies: Spiral - X-Rays: General

VizieR on-line data: <Available at CDS (J/ApJ/598/969): table2.dat>

Nomenclature: Table 2: [WCI2003] NN (Nos 1-83).

Simbad objects: 89

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Number of rows : 89
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 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
2 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
3 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
4 CXOU J111054.0+554113 X 11 10 54.09 +55 41 13.2           ~ 1 0
5 CXOU J111101.2+554049 X 11 11 01.25 +55 40 49.5           ~ 1 0
6 CXOU J111106.0+554416 X 11 11 06.00 +55 44 16.7           ~ 1 0
7 CXOU J111108.1+554151 X 11 11 08.15 +55 41 51.4           ~ 1 0
8 CXOU J111108.2+554013 X 11 11 08.22 +55 40 13.5           ~ 1 0
9 CXOU J111108.5+554245 X 11 11 08.50 +55 42 45.6           ~ 1 0
10 CXOU J111109.3+554248 X 11 11 09.37 +55 42 48.7           ~ 1 0
11 [WCI2003] 8 HXB 11 11 09.77 +55 39 59.7           ~ 2 0
12 [WCI2003] 9 HXB 11 11 10.67 +55 39 50.5           ~ 2 0
13 SDSS J111112.89+553800.4 QSO 11 11 12.897 +55 38 00.40           ~ 8 0
14 [WCI2003] 11 HXB 11 11 13.54 +55 40 16.0           ~ 2 0
15 CXOU J111114.8+554416 X 11 11 14.82 +55 44 16.2           ~ 1 0
16 CXOU J111115.4+554002 X 11 11 15.41 +55 40 02.8           ~ 1 0
17 CXOU J111116.3+554142 X 11 11 16.36 +55 41 42.4           ~ 2 0
18 CXOU J111116.5+554135 X 11 11 16.55 +55 41 35.8           ~ 2 0
19 CXOU J111116.6+554333 X 11 11 16.66 +55 43 33.8           ~ 1 0
20 [WCI2003] 17 HXB 11 11 17.70 +55 40 09.9           ~ 3 0
21 [WCI2003] 18 HXB 11 11 17.80 +55 40 16.7           ~ 2 0
22 [WCI2003] 19 * 11 11 18.6536936136 +55 42 37.547060148           ~ 1 0
23 CXOU J111119.1+553835 X 11 11 19.13 +55 38 35.4           ~ 1 0
24 [WCI2003] 21 HXB 11 11 20.62 +55 41 03.1           ~ 2 0
25 [WCI2003] 22 HXB 11 11 21.94 +55 40 16.4           ~ 2 0
26 [WCI2003] 23 HXB 11 11 22.76 +55 40 30.4           ~ 2 0
27 CXO J111124.7+554041 HXB 11 11 24.70 +55 40 41.8           ~ 2 0
28 CXOU J111125.7+554401 X 11 11 25.72 +55 44 01.4           ~ 1 0
29 [BWC2008] U16 ULX 11 11 25.81 +55 40 17.5           ~ 3 0
30 CXOU J111126.1+553945 X 11 11 26.13 +55 39 45.1           ~ 1 0
31 [WCI2003] 28 HXB 11 11 26.80 +55 40 28.6           ~ 2 0
32 CXOU J111126.8+553914 X 11 11 26.87 +55 39 14.7           ~ 1 0
33 [WCI2003] 30 HXB 11 11 27.23 +55 40 04.9           ~ 2 0
34 [WCI2003] 31 HXB 11 11 28.30 +55 40 21.2           ~ 2 0
35 CXOU J111129.2+553621 X 11 11 29.23 +55 36 21.2           ~ 1 0
36 CXOU J111130.0+554011 HXB 11 11 30.05 +55 40 11.6           ~ 2 0
37 CXOU J111130.2+553629 X 11 11 30.23 +55 36 29.9           ~ 1 0
38 [SST2011] J111130.34+554031.3 HXB 11 11 30.32 +55 40 31.1           ~ 5 0
39 M 108 AGN 11 11 30.967 +55 40 26.84   10.70       ~ 497 1
40 [WCI2003] 36 HXB 11 11 31.34 +55 40 44.0           ~ 2 0
41 CXOU J111131.6+554041 X 11 11 31.61 +55 40 41.0           ~ 1 0
42 CXOU J111131.8+553931 X 11 11 31.80 +55 39 31.6           ~ 1 0
43 [WCI2003] 39 HXB 11 11 31.81 +55 40 41.3           ~ 2 0
44 [WCI2003] 40 HXB 11 11 32.39 +55 40 27.0           ~ 2 0
45 CXOU J111132.6+554405 X 11 11 32.63 +55 44 05.0           ~ 1 0
46 [WCI2003] 42 HXB 11 11 32.64 +55 40 32.8           ~ 2 0
47 [WCI2003] 43 HXB 11 11 32.91 +55 40 32.0           ~ 2 0
48 CXOU J111134.3+554149 X 11 11 34.3 +55 41 49           ~ 1 0
49 CXOU J111134.5+554249 X 11 11 34.53 +55 42 49.8           ~ 1 0
50 [WCI2003] 46 HXB 11 11 35.24 +55 41 07.2           ~ 2 0
51 CXOU J111135.5+554222 X 11 11 35.54 +55 42 22.8           ~ 1 0
52 CXOU J111136.9+553929 X 11 11 36.94 +55 39 29.5           ~ 1 0
53 CXOU J111137.8+553728 X 11 11 37.80 +55 37 28.3           ~ 1 0
54 [WCI2003] 50 HXB 11 11 38.13 +55 40 19.1           ~ 2 0
55 2MASS J11113815+5542363 G 11 11 38.1625858776 +55 42 36.402617628           ~ 2 0
56 [WCI2003] 52 HXB 11 11 38.37 +55 39 51.6           ~ 2 0
57 [WCI2003] 53 HXB 11 11 38.99 +55 41 02.5           ~ 2 0
58 CXOU J111139.0+553955 X 11 11 39.05 +55 39 55.5           ~ 1 0
59 [WCI2003] 55 HXB 11 11 39.40 +55 39 54.1           ~ 2 0
60 [WCI2003] 56 HXB 11 11 40.32 +55 40 25.5           ~ 2 0
61 [WCI2003] 57 HXB 11 11 40.48 +55 40 12.5           ~ 2 0
62 [SST2011] J111141.42+554057.8 HXB 11 11 41.39 +55 40 57.7           ~ 4 0
63 CXOU J111143.3+554221 X 11 11 43.34 +55 42 21.9           ~ 1 0
64 CXOU J111143.7+554246 X 11 11 43.76 +55 42 46.9           ~ 1 0
65 CXOU J111144.7+554335 X 11 11 44.77 +55 43 35.8           ~ 1 0
66 CXOU J111145.0+554012 HXB 11 11 45.05 +55 40 12.7           ~ 2 0
67 CXOU J111145.7+553857 X 11 11 45.74 +55 38 57.0           ~ 1 0
68 CXOU J111146.6+553943 X 11 11 46.69 +55 39 43.6           ~ 1 0
69 CXOU J111147.1+553843 X 11 11 47.13 +55 38 43.9           ~ 1 0
70 [WCI2003] 66 HXB 11 11 48.98 +55 40 24.4           ~ 2 0
71 CXOU J111150.4+554223 X 11 11 50.41 +55 42 23.0           ~ 1 0
72 CXOU J111152.3+553920 X 11 11 52.39 +55 39 20.0           ~ 1 0
73 CXOU J111153.9+553728 X 11 11 53.96 +55 37 28.2           ~ 1 0
74 CXOU J111155.3+553846 X 11 11 55.31 +55 38 46.7           ~ 1 0
75 CXOU J111200.4+553908 X 11 12 00.43 +55 39 08.2           ~ 1 0
76 SDSS J111202.41+554335.5 QSO 11 12 02.411 +55 43 35.52           ~ 10 0
77 CXOU J111204.4+554355 X 11 12 04.47 +55 43 55.7           ~ 1 0
78 CXOU J111208.8+553905 X 11 12 08.84 +55 39 05.7           ~ 1 0
79 CXOU J111210.9+554136 X 11 12 10.95 +55 41 36.6           ~ 1 0
80 CXOU J111220.9+554256 X 11 12 20.99 +55 42 56.2           ~ 1 0
81 CXOU J111225.5+554310 X 11 12 25.58 +55 43 10.6           ~ 1 0
82 CXOU J111226.1+553750 X 11 12 26.16 +55 37 50.1           ~ 1 0
83 CXOU J111229.5+554002 X 11 12 29.59 +55 40 02.4           ~ 1 0
84 SDSS J111233.67+554228.2 G 11 12 33.67215 +55 42 28.2455           ~ 2 0
85 CXOU J111236.2+554329 X 11 12 36.28 +55 43 29.5           ~ 1 0
86 CXOU J111240.9+553825 X 11 12 40.95 +55 38 25.0           ~ 1 0
87 CXOU J111243.1+554241 X 11 12 43.11 +55 42 41.3           ~ 1 0
88 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
89 NGC 5408 EmG 14 03 20.907 -41 22 39.75   12.59   11.96 12.2 ~ 368 3

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