J/PASJ/58/931 X-ray sources in A194 and A1060 (Hudaverdi+, 2006)
Overdensity of X-ray sources in the field of two nearby clusters of galaxies:
XMM-Newton view of A 194 and A 1060.
Hudaverdi M., Kunieda H., Tanaka T., Haba Y., Furuzawa A., Tawara Y.,
Ercan E.N.
<Publ. Astron. Soc. Jap., 58, 931-943 (2006)>
=2006PASJ...58..931H 2006PASJ...58..931H
ADC_Keywords: Clusters, galaxy ; X-ray sources
Keywords: galaxies: clusters: individual (Abell 194, Abell 1060)
Abstract:
Two nearby clusters of galaxies, A194 (z=0.018) and A1060 (z=0.0114),
have been analyzed for their X-ray point-source properties with
XMM-Newton EPIC-PN data. A multi-band source detection technique was
applied to both of the clusters, resulting in 46 sources from the A194
field and 32 sources from the A1060 field, respectively. The
cumulative log(N)-log(S) for a flux limit of FX≥1x10-14erg/cm2/s
was calculated and compared with that of the Lockman Hole. A ∼3σ
excess of X-ray sources was found for the cluster regions.
Description:
We used X-ray data obtained by XMM-Newton observations which covered a
major portion of the cluster emission with a large collecting area.
The three European Photon Imaging Camera (EPIC) instruments, the two
EPIC-MOS detectors and the EPIC-PN detector, were used.
The A194 cluster field was observed with the XMM-Newton satellite in
revolution 557 on 2002 December. The cameras were operated in the
Prime Full Window mode with thin filters. A1060 was observed in 2004
June in revolution 834.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table6.dat 118 46 A194 XMM observations
table7.dat 119 32 A1060 XMM observations
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Byte-by-byte Description of file: table[67].dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Sequential number (1)
4- 7 A4 --- --- [XMMU]
9- 26 A18 --- XMMU XMMU designation, JHHMMSS.s+DDMMSS for A194
and JHHMMSS.s+DDMMSS.s for A1060
28- 31 F4.2 arcsec e_Pos ?=- Positional error
33- 37 F5.2 ct/ks CRs ?=- Soft (0.3-1keV) count rate
39- 42 F4.2 ct/ks e_CRs ?=- rms uncertainty on CRs
44- 48 F5.2 ct/ks CRm ?=- Medium (1-1.6keV) count rate
50- 53 F4.2 ct/ks e_CRm ?=- rms uncertainty on CRm
55- 59 F5.2 ct/ks CRh ?=- Hard (1.6-10keV) count rate
61- 64 F4.2 ct/ks e_CRh ?=- rms uncertainty on CRh
66- 70 F5.2 --- HR1 ?=- Hardness ratio HR1=(M-S)/(M+S)
72- 75 F4.2 --- e_HR1 ?=- rms uncertainty on HR1
77- 81 F5.2 --- HR2 ?=- Hardness ratio HR2=(H-M)/(H+M)
83- 86 F4.2 --- e_HR2 ?=- rms uncertainty on HR2
88- 93 F6.2 10-17W/m2 F(2-10keV) ?=- X-ray flux in the (2-10keV) band
95- 99 F5.2 [10-7W] logLX ?=- X-ray luminosity in the (2-10keV) band
101-110 A10 --- optID Counterpart in other band
112-118 F7.5 --- zopt ? Optical redshift
119 A1 --- n_zopt [*] Note on redshift for NGC 3314 (2)
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Note (1): Sources identified in Simbad as
[HKT2006] A 194 NN for table6
[HKT2006] A 1060 NN for table7
Note (2): NGC 3314 is a galaxy pair, having z=0.00951 (NGC 3314A) and
z=0.01548 (NGC 3314B)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Apr-2008