2006ApJS..166..211Z


Query : 2006ApJS..166..211Z

2006ApJS..166..211Z - Astrophys. J., Suppl. Ser., 166, 211-248 (2006/September-0)

Chandra monitoring observations of The Antennae galaxies. I. Catalog of source properties.

ZEZAS A., FABBIANO G., BALDI A., SCHWEIZER F., KING A.R., PONMAN T.J. and ROTS A.H.

Abstract (from CDS):

We present the properties of the discrete X-ray sources detected in our monitoring survey of the Antennae galaxies with Chandra ACIS-S. We detect ∼70 sources down to a typical luminosity of 7x1037 ergs/s in each of the six monitoring observations. In the co-added observation (which has a total exposure of 411 ks) we detect a total of 120 sources down to a luminosity of 2-5x1037 ergs/s, depending on the local background. Fifteen sources have a strong extended component. Fourteen of the pointlike sources have luminosities above 1039 ergs/s, at least in one exposure, which qualifies them as ultraluminous X-ray sources (ULXs). Ten of the ULXs show long-term variability, while one is observed only once, suggesting that it is a transient source. We find that 25 sources exhibit long-term variability clearly associating them with accreting compact objects. Twenty-one sources also show spectral variability. However, their variability patterns are diverse, indicating that they belong to different source classes. Finally, we find a weak excess of hard sources at the low luminosities that we tentatively associate with pulsar X-ray binaries.

Abstract Copyright:

Journal keyword(s): galaxies: individual (NGC 4038/39) - Galaxies: Interactions - Galaxies: Peculiar - X-Rays: Binaries - X-Rays: Galaxies

VizieR on-line data: <Available at CDS (J/ApJS/166/211): table1.dat table3.dat table5.dat table6.dat table7.dat table8.dat table9.dat table10.dat table11.dat table12.dat table13.dat table14.dat table15.dat table16.dat table17.dat table18.dat table19.dat table20.dat table21.dat table22.dat>

Nomenclature: Table 3: [ZFB2006] NNN (Nos 1-120) = Table 5: CXCAnt JHHMMSS.s+DDMMSS N=120. End of Table 5: [ZFB2006] N D (Nos 1 D to 7 D).

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 24

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Number of rows : 24
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 [ZFB2006] 22 XB? 12 01 50.90 -18 52 33.0           ~ 3 0
2 [ZFB2006] 24 XB? 12 01 51.10 -18 52 31.1           ~ 3 0
3 [ZFB2006] 27 HXB 12 01 51.3185981616 -18 52 24.892127760           ~ 24 1
4 [ZFB2006] 36 XB? 12 01 51.80 -18 52 27.7           ~ 3 0
5 [ZFB2006] 38 XB? 12 01 52.00 -18 52 27.6           ~ 2 0
6 CXOU J120152.1-185220 HXB 12 01 52.10 -18 52 20.6           ~ 4 0
7 CXOU J120152.6-185134 HXB 12 01 52.60 -18 51 35.3           ~ 4 0
8 [ZFR2002] 20 HXB 12 01 52.70 -18 51 30.0           ~ 10 0
9 [ZFR2002] 23 HXB 12 01 52.90 -18 53 19.4           ~ 7 0
10 [CHP2004] J120153.0-185204 HXB 12 01 52.90 -18 52 03.2           ~ 13 0
11 [ZFB2006] 53 XB? 12 01 53.00 -18 52 07.7           ~ 3 0
12 NGC 4038 GiP 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1307 1
13 [ZFB2006] 52 XB? 12 01 53.0494756152 -18 52 24.028972032           ~ 3 0
14 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1634 0
15 CXOU J120153.3-185306 HXB 12 01 53.40 -18 53 07.0           ~ 4 0
16 NGC 4039 GiP 12 01 53.8 -18 53 06   11.08   9.77   ~ 1148 1
17 [ZFR2002] 34 HXB 12 01 54.50 -18 53 03.7           ~ 10 0
18 [ZFR2002] 33 HXB 12 01 54.5110200864 -18 53 05.829182808           ~ 11 0
19 [ZFR2002] 36 HXB 12 01 54.80 -18 52 15.1           ~ 8 0
20 [ZFB2006] 89 XB? 12 01 54.90 -18 52 32.3           ~ 3 0
21 [ZFB2006] 91 XB? 12 01 55.00 -18 52 41.2           ~ 3 0
22 CXOU J120155.5-185223 HXB 12 01 55.50 -18 52 23.7           ~ 4 0
23 [PCV2006] ULX 26 HXB 12 01 55.60 -18 52 15.0           ~ 19 1
24 [ZFB2006] 101 HXB 12 01 55.7383438992 -18 52 42.388060152           ~ 4 0

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2022.09.30-02:27:43

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