2000A&A...361..491K


Query : 2000A&A...361..491K

2000A&A...361..491K - Astronomy and Astrophysics, volume 361, 491-499 (2000/9-2)

Probing the gas content of the dwarf galaxy NGC 3109 with background X-ray sources.

KAHABKA P., PUZIA T.H. and PIETSCH W.

Abstract (from CDS):

We established the catalog of X-ray point sources in the field of the Magellanic-type spiral galaxy NGC 3109 (DDO 236) from two ROSAT PSPC observations. Of the 91 X-ray sources 26 are contained within the HI extent of NGC 3109 as derived by Jobin & Carignan (1990AJ....100..648J) with the VLA. For 10 of these we can determine accurate hardness ratios δHR2≤0.2. We find 3 candidate AGN, 2 candidate X-ray binaries and one source which may belong to either class. We also find 2 candidate foreground stars. In a field of 8'x8' observed with the NTT in the I-band and centered on the nucleus of NGC 3109 we determine candidates for optical counterparts in the X-ray error circle of 7 ROSAT PSPC sources. We apply a spectral fit to the ROSAT spectrum of the X-ray brightest absorbed candidate AGN behind NGC 3109, RX J1003.2-2607. Assuming a galactic foreground hydrogen column density of 4.3x1020cm–2 we derive from the X-ray spectral fit, assuming reduced metallicities (∼0.2 solar), a hydrogen column density due to NGC 3109 of 11±75x1020cm–2. This value is slightly larger than the hydrogen column density derived from the 21-cm observations of ∼8x1020cm–2. We estimate that the molecular mass fraction of the gas is not larger than ∼60%.

Abstract Copyright:

Journal keyword(s): catalogs - galaxies: individual: NGC 3109 - galaxies: active - galaxies: ISM - radio continuum: galaxies - X-rays: galaxies

VizieR on-line data: <Available at CDS (J/A+A/361/491): table4.dat table6.dat notes.dat>

Nomenclature: Table 6, col(2): [KPP2000] NNN N=91 among (Nos 1-110). Table 4: [KPP2000] NN N N=30.

Simbad objects: 127

goto View the references in ADS

Number of rows : 127
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10194 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6277 1
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15990 1
4 SNR B0548-70.4 SNR 05 47 50.00 -70 24 54.0           ~ 78 0
5 RX J0959.6-2605 WD* 09 59 37.2573922032 -26 04 25.939610508   15.3 16.4 15.95   DA.97 6 0
6 RX J1000.4-2616 X 10 00 24.9 -26 16 08           ~ 1 0
7 RX J1001.0-2615 X 10 01 01.6 -26 15 24           ~ 1 0
8 RX J1001.1-2620 X 10 01 09.0 -26 20 14           ~ 1 0
9 RX J1001.1-2644 X 10 01 10.1 -26 44 21           ~ 1 0
10 RX J1001.2-2602 X 10 01 12.5 -26 02 35           ~ 1 0
11 RX J1001.2-2616 X 10 01 17.8 -26 16 08           ~ 1 0
12 RX J1001.4-2622 X 10 01 25.9 -26 22 52           ~ 1 0
13 RX J1001.5-2638 X 10 01 30.0 -26 38 36           ~ 1 0
14 RX J1001.6-2544 X 10 01 38.4 -25 44 57           ~ 1 0
15 RX J1001.8-2604 X 10 01 49.7 -26 04 36           ~ 1 0
16 RX J1001.9-2601 X 10 01 56.9 -26 01 38           ~ 1 0
17 RX J1001.9-2612 X 10 01 57.1 -26 12 15           ~ 1 0
18 RX J1002.1-2612 X 10 02 08.6 -26 12 56           ~ 1 0
19 RX J1002.1-2622 X 10 02 09.3 -26 22 17           ~ 1 0
20 RX J1002.2-2610 X 10 02 14.3 -26 10 45           ~ 1 0
21 RX J1002.2-2633 X 10 02 17.3 -26 33 59           ~ 1 0
22 RX J1002.3-2603 X 10 02 18.8 -26 03 24           ~ 1 0
23 RX J1002.3-2614 X 10 02 20.5 -26 14 01           ~ 1 0
24 RX J1002.3-2611 X 10 02 21.5 -26 11 46           ~ 1 0
25 RX J1002.4-2629 X 10 02 24.5 -26 29 37           ~ 1 0
26 RX J1002.4-2626 X 10 02 25.5 -26 26 39           ~ 1 0
27 RX J1002.4-2557 X 10 02 28.5 -25 57 10           ~ 1 0
28 RX J1002.4-2552 X 10 02 28.9 -25 52 20           ~ 1 0
29 RX J1002.4-2600 X 10 02 29.5 -26 00 04           ~ 1 0
30 RX J1002.5-2622 X 10 02 30.8 -26 22 27           ~ 1 0
31 RX J1002.5-2602 X 10 02 32.6 -26 02 37           ~ 1 0
32 RX J1002.5-2620 X 10 02 34.8 -26 20 13           ~ 1 0
33 RX J1002.5-2618 X 10 02 35.5 -26 18 08           ~ 1 0
34 RX J1002.5-2556 X 10 02 35.8 -25 56 25           ~ 1 0
35 RX J1002.6-2607 X 10 02 38.6 -26 07 40           ~ 1 0
36 RX J1002.7-2612 X 10 02 42.1 -26 12 13           ~ 1 0
37 RX J1002.7-2551 X 10 02 44.4 -25 51 45           ~ 1 0
38 RX J1002.7-2630 X 10 02 44.9 -26 30 13           ~ 1 0
39 RX J1002.7-2624 X 10 02 46.4 -26 25 00           ~ 1 0
40 RX J1002.7-2618 X 10 02 47.6 -26 18 21           ~ 1 0
41 RX J1002.8-2555 X 10 02 48.3 -25 55 29           ~ 1 0
42 RX J1002.8-2621 X 10 02 48.4 -26 21 48           ~ 1 0
43 RX J1002.8-2601 X 10 02 50.5 -26 01 07           ~ 1 0
44 RX J1002.8-2559 X 10 02 51.5 -26 59 33           ~ 1 0
45 RX J1002.9-2650 X 10 02 56.1 -26 50 31           ~ 1 0
46 RX J1002.9-2554 X 10 02 57.9 -25 54 25           ~ 1 0
47 RX J1002.9-2611 X 10 02 59.0 -26 11 53           ~ 1 0
48 RX J1002.9-2610 X 10 02 59.8 -26 10 09           ~ 1 0
49 RX J1003.0-2551 X 10 03 00.8 -25 51 21           ~ 1 0
50 RX J1003.0-2607 X 10 03 01.4 -26 07 13           ~ 1 0
51 RX J1003.0-2600 X 10 03 05.2 -26 00 53           ~ 1 0
52 RX J1003.0-2558 X 10 03 05.3 -26 58 41           ~ 1 0
53 RX J1003.1-2622 X 10 03 06.0 -26 22 44           ~ 1 0
54 NGC 3109 G 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 731 2
55 RX J1003.1-2609 X 10 03 08.2 -26 09 30           ~ 1 0
56 RX J1003.2-2556 X 10 03 14.9 -25 56 57           ~ 1 0
57 RX J1003.2-2558 X 10 03 15.1 -25 58 42           ~ 1 0
58 RX J1003.2-2607 AGN 10 03 17.8 -26 07 11           ~ 1 0
59 RX J1003.2-2604 X 10 03 17.8 -26 05 00           ~ 1 0
60 RX J1003.3-2600 X 10 03 20.3 -26 00 26           ~ 1 0
61 RX J1003.3-2613 X 10 03 22.9 -26 13 26           ~ 1 0
62 RX J1003.3-2629 X 10 03 23.1 -26 29 55           ~ 1 0
63 RX J1003.4-2643 X 10 03 24.6 -26 43 20           ~ 1 0
64 RX J1003.4-2613 X 10 03 28.7 -26 13 39           ~ 1 0
65 RX J1003.5-2558 X 10 03 31.5 -26 58 36           ~ 1 0
66 RX J1003.6-2610 X 10 03 39.2 -26 10 38           ~ 1 0
67 RX J1003.6-2620 * 10 03 40.5484595160 -26 20 22.808938596           ~ 1 0
68 RX J1003.6-2530 X 10 03 41.4 -26 30 23           ~ 1 0
69 RX J1003.6-2609 X 10 03 41.8 -26 09 03           ~ 1 0
70 RX J1003.7-2622 X 10 03 42.0 -26 22 00           ~ 1 0
71 RX J1003.7-2614 X 10 03 42.7 -26 14 27           ~ 1 0
72 RX J1003.7-2628 X 10 03 43.4 -26 28 24           ~ 1 0
73 RX J1003.7-2612 X 10 03 45.1 -26 12 39           ~ 1 0
74 RX J1003.8-2606 X 10 03 49.6 -26 06 31           ~ 1 0
75 RX J1003.8-2611 X 10 03 49.8 -26 11 13           ~ 1 0
76 RX J1003.8-2600 X 10 03 50.0 -26 00 10           ~ 1 0
77 RX J1003.8-2551 X 10 03 50.1 -25 51 44           ~ 1 0
78 RX J1003.8-2604 X 10 03 51.7 -26 04 46           ~ 1 0
79 RX J1003.8-2624 X 10 03 52.5 -26 24 24           ~ 1 0
80 RX J1003.9-2614 X 10 03 55.6 -26 14 56           ~ 1 0
81 RX J1003.9-2611 X 10 03 57.0 -26 11 12           ~ 1 0
82 RX J1004.0-2609 X 10 04 00.0 -26 09 03           ~ 1 0
83 RX J1004.0-2622 X 10 04 01.3 -26 22 53           ~ 1 0
84 RX J1004.0-2557 X 10 04 01.3 -25 57 06           ~ 1 0
85 RX J1004.4-2607 X 10 04 24.3 -26 07 26           ~ 1 0
86 RX J1004.4-2612 X 10 04 24.9 -26 12 42           ~ 1 0
87 RX J1004.4-2538 X 10 04 26.7 -25 38 14           ~ 1 0
88 RX J1004.8-2620 X 10 04 49.2 -26 20 30           ~ 1 0
89 RX J1004.8-2558 X 10 04 50.6 -25 58 07           ~ 1 0
90 RX J1004.9-2615 X 10 04 54.1 -26 15 14           ~ 1 0
91 RX J1004.9-2545 X 10 04 59.5 -25 45 08           ~ 1 0
92 RX J1005.0-2619 X 10 05 05.0 -26 19 46           ~ 1 0
93 RX J1005.1-2626 X 10 05 06.6 -26 26 03           ~ 1 0
94 RX J1005.7-2600 X 10 05 43.8 -26 00 12           ~ 1 0
95 RX J1005.9-2613 X 10 05 56.7 -26 13 33           ~ 1 0
96 RX J1006.4-2607 X 10 06 27.9 -26 07 17           ~ 1 0
97 [KPP2000] 52 1 X ~ ~           ~ 1 0
98 [KPP2000] 53 4 X ~ ~           ~ 1 0
99 [KPP2000] 53 5 X ~ ~           ~ 1 0
100 [KPP2000] 55 1 X ~ ~           ~ 1 0
101 [KPP2000] 55 2 X ~ ~           ~ 1 0
102 [KPP2000] 55 3 X ~ ~           ~ 1 0
103 [KPP2000] 55 4 X ~ ~           ~ 1 0
104 [KPP2000] 55 5 X ~ ~           ~ 1 0
105 [KPP2000] 62 1 X ~ ~           ~ 1 0
106 [KPP2000] 62 2 X ~ ~           ~ 1 0
107 [KPP2000] 62 3 X ~ ~           ~ 1 0
108 [KPP2000] 62 4 X ~ ~           ~ 1 0
109 [KPP2000] 62 5 X ~ ~           ~ 1 0
110 [KPP2000] 63 1 X ~ ~           ~ 1 0
111 [KPP2000] 63 2 X ~ ~           ~ 1 0
112 [KPP2000] 63 3 X ~ ~           ~ 1 0
113 [KPP2000] 63 4 X ~ ~           ~ 1 0
114 [KPP2000] 63 5 X ~ ~           ~ 1 0
115 [KPP2000] 65 1 X ~ ~           ~ 1 0
116 [KPP2000] 65 2 X ~ ~           ~ 1 0
117 [KPP2000] 65 3 X ~ ~           ~ 1 0
118 [KPP2000] 65 4 X ~ ~           ~ 1 0
119 [KPP2000] 65 5 X ~ ~           ~ 1 0
120 NAME Local Group GrG ~ ~           ~ 7638 0
121 [KPP2000] 53 1 X ~ ~           ~ 1 0
122 [KPP2000] 52 5 X ~ ~           ~ 1 0
123 [KPP2000] 52 4 X ~ ~           ~ 1 0
124 [KPP2000] 52 3 X ~ ~           ~ 1 0
125 [KPP2000] 53 3 X ~ ~           ~ 1 0
126 [KPP2000] 52 2 X ~ ~           ~ 1 0
127 [KPP2000] 53 2 X ~ ~           ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2000A&A...361..491K and select 'bookmark this link' or equivalent in the popup menu


2022.05.20-19:08:29

© Université de Strasbourg/CNRS

    • Contact