2002ApJ...577..139S

Query : 2002ApJ...577..139S

2002ApJ...577..139S - Astrophys. J., 577, 139-149 (2002/September-3)

Chandra view of the dynamically young cluster of galaxies A1367. II. Point sources.

SUN M. and MURRAY S.S.

Abstract (from CDS):

A 40 ks Chandra ACIS-S observation of the dynamically young cluster A1367 yields new insights on X-ray emission from cluster member galaxies. We detect 59 pointlike sources in the ACIS field, of which eight are identified with known cluster member galaxies. Thus, in total 10 member galaxies are detected in X-rays when three galaxies discussed in Paper I (NGC 3860 is discussed in both papers) are included. The superior spatial resolution and good spectroscopy capability of Chandra allow us to constrain the emission nature of these galaxies. Central nuclei, thermal halos, and stellar components are revealed in their spectra. Two new low-luminosity active galactic nuclei (LLAGNs) are found, including an absorbed one (NGC 3861). Besides these two for sure, two new LLAGN candidates are also found. This discovery makes the LLAGN/AGN content in this part of A1367 very high (≳12%). Thermal halos with temperatures around 0.5-0.8 keV are revealed in the spectra of NGC 3842 and NGC 3837, which suggests that galactic coronae can survive in clusters and that heat conduction must be suppressed. The X-ray spectrum of NGC 3862 (3C 264) resembles a BL Lac object with a photon index of ∼2.5. We also present an analysis of other point sources in the field and discuss the apparent source excess (∼2.5 σ) in the central field.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: General - Galaxies: Clusters: Individual: Alphanumeric: A1367 - X-Rays: Galaxies

Nomenclature: Tables 1, 2, 4: [SM2002b] NN (Nos 1-61).

Simbad objects: 96

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Number of rows : 96
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 ClG J0030+2618 ClG 00 30 33.6 +26 18 16           ~ 61 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12645 1
3 NGC 1553 GiP 04 16 10.4697802536 -55 46 48.072797400 10.76 10.10 9.40 8.74   ~ 377 2
4 UGC 6697 GiG 11 43 49.1088652488 +19 58 05.954438316 13.96 14.35 13.59 13.29   ~ 227 3
5 NGC 3837 GiG 11 43 56.4186532608 +19 53 40.419131748 15.18 14.68   12.99   ~ 97 1
6 QSO B1141+2013 QSO 11 43 56.8921061640 +19 56 49.357262148     18.5     ~ 32 0
7 RX J1143.9+1953 X 11 43 57.2 +19 53 51           ~ 3 1
8 2MASX J11435749+1957133 GiC 11 43 57.5131950504 +19 57 13.588696260 16.87 16.34   14.63   ~ 33 0
9 NGC 3844 GiG 11 44 00.7966270512 +20 01 45.574173696 15.31 14.85 13.87     ~ 59 1
10 1E 114125+2007.2 X 11 44 01 +19 50.6           ~ 2 0
11 MCG+03-30-071 GiG 11 44 01.882 +19 47 04.35 15.77 16.04   15.10   ~ 65 0
12 NGC 3842 BiC 11 44 02.155 +19 56 59.37 14.22 13.70 11.82 12.04   ~ 287 3
13 NGC 3841 LIN 11 44 02.1601646400 +19 58 18.864267096 16.29 15.78   14.10   ~ 78 0
14 [SM2002b] 13 X 11 44 05.30 +19 56 03.0           ~ 1 0
15 [VV96] J114405.3+195603 QSO 11 44 05.3715644808 +19 56 02.030450712   20.43 20.18     ~ 11 0
16 NGC 3845 LIN 11 44 05.4688776960 +19 59 45.893288364 15.96 15.48   13.82   ~ 51 0
17 QSO B1141+202 QSO 11 44 05.6907888528 +19 57 35.383109832   19.32 19.08     ~ 40 0
18 1E 114130+2005.3 X 11 44 06 +19 48.7           ~ 2 0
19 RX J1144.1+1950 X 11 44 09 +19 50.5           ~ 5 0
20 [SM2002b] 41 X 11 44 11.07 +19 49 17.0           ~ 1 0
21 1E 114136+2009.3 X 11 44 12.02 +19 52 42.8           ~ 2 0
22 1E 114137+2013.9 X 11 44 13.0 +19 57 19           ~ 2 0
23 1E 114139+2012.1 X 11 44 14.7 +19 55 26           ~ 2 0
24 [SM2002b] 29 X 11 44 17.57 +19 46 09.3           ~ 1 0
25 MCG+03-30-076 LIN 11 44 18.9504640896 +19 50 40.720963668   15.3       ~ 41 0
26 [SM2002b] 55 X 11 44 20.49 +19 47 21.3           ~ 1 0
27 MCG+03-30-078 GiG 11 44 20.702 +19 49 32.88 16.43 15.96   14.28   ~ 36 0
28 [SM2002b] 38 X 11 44 20.82 +19 48 10.1           ~ 1 0
29 SDSS J114420.92+194435.7 QSO 11 44 20.919 +19 44 35.68           ~ 10 0
30 [SM2002b] 45 X 11 44 23.93 +19 50 21.6           ~ 1 0
31 [SM2002b] 61 X 11 44 24.53 +19 45 04.7           ~ 1 0
32 1E 114149+2011.6 X 11 44 24.6 +19 54 58           ~ 2 0
33 MCG+03-30-079 GiG 11 44 25.1279246712 +19 49 41.033389260 16.54 16.13   14.50   ~ 34 0
34 [SM2002b] 47 X 11 44 27.00 +19 44 48.0           ~ 1 0
35 [SM2002b] 54 X 11 44 27.0054810456 +19 45 49.043188908           ~ 1 0
36 [SM2002b] 40 X 11 44 27.36 +19 44 54.0           ~ 1 0
37 [SM2002b] 51 X 11 44 28.24 +19 46 59.0           ~ 1 0
38 2MASX J11442835+1944068 GiG 11 44 28.3686386544 +19 44 06.556534008 17.13 16.66   14.94   ~ 26 0
39 [SM2002b] 9 X 11 44 28.39 +19 44 08.7           ~ 1 1
40 1E 114154+2008.8 X 11 44 29 +19 52.2           ~ 2 0
41 [SM2002b] 56 X 11 44 29.12 +19 41 34.7           ~ 1 0
42 [SM2002b] 48 X 11 44 30.67 +19 39 54.2           ~ 1 0
43 [SM2002b] 49 X 11 44 31.06 +19 44 35.5           ~ 1 0
44 [SM2002b] 59 X 11 44 35.14 +19 46 25.5           ~ 1 0
45 [SM2002b] 16 X 11 44 35.6153484768 +19 50 29.168963088           ~ 2 0
46 RX J1144.6+1951 X 11 44 36 +19 51.7           ~ 5 0
47 2MASXI J1144365+194505 GiC 11 44 36.500 +19 45 05.86 18.19 17.89   16.29   ~ 12 0
48 [SM2002b] 25 X 11 44 36.53 +19 39 16.9           ~ 1 0
49 [SM2002b] 24 X 11 44 36.927 +19 49 40.84           ~ 2 0
50 RX J1144.6+1938 X 11 44 37 +19 38.6           ~ 2 0
51 [SM2002b] 58 X 11 44 37.09 +19 46 58.9           ~ 1 0
52 [SM2002b] 42 X 11 44 37.81 +19 47 51.3           ~ 1 0
53 [SM2002b] 28 X 11 44 38.34 +19 44 05.9           ~ 1 0
54 SDSS J114439.20+194525.8 QSO 11 44 39.209 +19 45 25.83           ~ 11 0
55 [SM2002b] 53 X 11 44 39.38 +19 40 23.1           ~ 1 0
56 [SM2002b] 57 X 11 44 42.24 +19 45 03.0           ~ 1 0
57 1E 114208+2013.8 X 11 44 44.4 +19 57 12           ~ 2 0
58 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1076 1
59 [SM2002b] 44 X 11 44 45.20 +19 48 28.2           ~ 1 0
60 [SM2002b] 52 X 11 44 46.40 +19 47 40.7           ~ 1 0
61 2MASX J11444664+1945279 GiC 11 44 46.6110290664 +19 45 28.252263168 17.05 16.60   14.89   ~ 35 0
62 1E 114211+1954.3 X 11 44 46.7 +19 37 38           ~ 2 0
63 MCG+03-30-087 H2G 11 44 47.791 +19 46 24.29 16.22 16.53   15.45   ~ 75 0
64 MCG+03-30-085 GiC 11 44 47.9453804424 +19 41 18.497600340 16.70 16.45   14.99   ~ 31 0
65 2MASXI J1144481+193451 GiC 11 44 48.14567 +19 34 50.9880           ~ 16 0
66 RX J1144.8+1941 G 11 44 48.3 +19 41 35           ~ 4 0
67 NGC 3860 AGN 11 44 49.1676137928 +19 47 42.121734972 14.81 14.61   13.12   ~ 112 0
68 [SM2002b] 60 X 11 44 50.05 +19 44 01.6           ~ 1 0
69 [SM2002b] 43 X 11 44 50.1 +19 56 32           ~ 1 0
70 Z 97-118 GiC 11 44 52.17696 +19 36 35.7912   15.7       ~ 20 0
71 [SM2002b] 37 X 11 44 52.58 +19 44 55.5           ~ 1 0
72 [SM2002b] 33 X 11 44 53.83 +19 46 36.7           ~ 1 0
73 [SM2002b] 34 X 11 44 55.361 +19 43 37.69           ~ 2 0
74 [SM2002b] 46 X 11 44 56.91 +19 44 59.5           ~ 1 0
75 2MASX J11445692+1943549 GiG 11 44 56.9450243520 +19 43 54.751589796   15.3       ~ 34 0
76 [SM2002b] 22 X 11 44 57.792 +19 53 01.99           ~ 2 0
77 1E 114222+2012.2 X 11 44 58 +19 55.6           ~ 2 0
78 RX J1144.9+1954 X 11 44 59.0 +19 54 10           ~ 4 0
79 [SM2002b] 36 X 11 44 59.4 +19 56 39           ~ 1 0
80 NGC 3861 Sy2 11 45 03.8789303016 +19 58 25.155429204 13.65 13.47 12.67 12.43   ~ 150 2
81 IC 2955 GiG 11 45 03.8905220736 +19 37 14.085396444   15.2       ~ 61 0
82 NGC 3862 Sy2 11 45 05.00904503 +19 36 22.7409909   14.98 13.97     ~ 601 3
83 MCG+03-30-094 AGN 11 45 06.9604411968 +19 58 00.691048200   14.0   14.59   ~ 31 2
84 [SM2002b] 20 G 11 45 07.5 +19 35 51           ~ 2 0
85 [SM2002b] 23 X 11 45 07.8 +19 54 18           ~ 1 0
86 [SM2002b] 32 X 11 45 09.5 +19 35 01           ~ 1 0
87 [SM2002b] 39 X 11 45 10.1 +19 52 56           ~ 1 0
88 [SM2002b] 30 X 11 45 13.4 +19 34 34           ~ 1 0
89 [SM2002b] 50 X 11 45 14.6 +19 50 17           ~ 1 0
90 MCG+03-30-098 GiG 11 45 14.8547020968 +19 50 43.903025088   15.1       ~ 38 0
91 SDSS J114515.70+195725.2 QSO 11 45 15.6982006896 +19 57 25.186172184           ~ 10 0
92 2XMM J114516.0+194951 G 11 45 16.0395588408 +19 49 51.307981212           ~ 3 0
93 RX J1145.2+1950 X 11 45 16.9 +19 50 10           ~ 3 0
94 [SM2002b] 35 X 11 45 29.3 +19 53 59           ~ 1 0
95 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 859 0
96 ClG J1411+5211 ClG 14 11 24.4 +52 12 38     20.11     ~ 118 3

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