Access to Astronomical Catalogues

← Click to display the menu
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
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:
FileName Lrecl Records Explanations
ReadMe 80 . This file table6.dat 119 46 A194 XMM observations table7.dat 119 32 A1060 XMM observations
Byte-by-byte Description of file: table[67].dat
Bytes Format Units Label Explanations
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)
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)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Apr-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© Unistra/CNRS