J/MNRAS/357/1357 Large-scale clumpy structure in Lynx region (Nakata+, 2005)
Discovery of a large-scale clumpy structure around the Lynx supercluster at z∼1.27. Nakata F., Kodama T., Shimasaku K., Doi M., Furusawa H., Hamabe M., Kimura M., Komiyama Y., Miyazaki S., Okamura S., Ouchi M., Sekiguchi M., Ueda Y., Yagi M., Yasuda N. <Mon. Not. R. Astron. Soc., 357, 1357-1362 (2005)> =2005MNRAS.357.1357N
ADC_Keywords: Clusters, galaxy ; X-ray sources Keywords: galaxies: clusters: individual: RXJ 0848.6+4453, RXJ 0848.9+4452 - galaxies: evolution - galaxies: formation - large-scale structure of Universe Abstract: We report the discovery of a probable large-scale structure composed of many galaxy clumps around the known twin clusters at z=1.26 and 1.27 in the Lynx region. Our analysis is based on deep, panoramic, and multicolour imaging, 26.4x24.1arcmin2 in VRi'z' bands with the Suprime-Cam on the 8.2-m Subaru telescope. This unique, deep and wide-field imaging data set allows us for the first time to map out the galaxy distribution in the highest-redshift supercluster known. Description: The Lynx field was observed over 2000 November2001 March in the V, R, i' and z' bands with the Suprime-Cam. Only eight of the 10 charge-coupled devices (CCDs) of the Suprime-Cam were ready at the time of these observations. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 83 9 Properties of the clusters and the cluster/group candidates.
See also: J/AJ/123/2223 : SPICES II: CHANDRA observations of Lynx (Stern+, 2002) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 A3 --- [NKS2005] Cluster/group identification (clN or grN) 4 A1 --- f_[NKS2005] [c] contamination flag (1) 6- 7 I2 h RAh Right ascension (J2000.0) 9- 10 I2 min RAm Right ascension (J2000.0) 12- 15 F4.1 s RAs Right ascension (J2000.0) 17 A1 --- DE- Declination sign (J2000.0) 18- 19 I2 deg DEd Declination (J2000.0) 21- 22 I2 arcmin DEm Declination (J2000.0) 24- 27 F4.1 arcsec DEs Declination (J2000.0) 29- 32 F4.1 Mpc-2 Sigma Local surface density (2) 34- 36 F3.1 Mpc-2 e_Sigma rms uncertainty on Sigma 37 A1 --- n_Sigma [)] Uncertainty flag on Sigma 39- 42 F4.1 Mpc-2 SigmaR Red local surface density (2) 44- 46 F3.1 Mpc-2 e_SigmaR rms uncertainty on Sigmared 47 A1 --- n_SigmaR [)] Uncertainty flag on Sigmared 49- 52 F4.1 --- N0.5 Number of galaxies within a 0.5-Mpc radius from the cluster centre and within the magnitude range between m1 and m1+3 measured in the R band at z∼0.5 54- 56 F3.1 --- e_N0.5 rms uncertainty on N0.5 57 A1 --- n_N0.5 [)] Uncertainty flag on N0.5 59- 61 A3 --- R Richness class 62 A1 --- n_R [)] Uncertainty flag on R 64- 67 F4.1 aW/m2 FX ?=- X-ray flux density in 0.5-2.0keV band (3) 69- 71 F3.1 aW/m2 e_FX ?=- rms uncertainty on FX 72 A1 --- n_FX [bd] Note on FX (4) 74 A1 --- l_LX Limit flag on LX (3σ upper limit) 75- 78 F4.2 10+37W LX ?=- X-ray luminosity in 0.5-2.0keV band (3) 80- 83 F4.2 10+37W e_LX ?=- rms uncertainty on LX
Note (1): The 'c' flag indicates that the tabulated numbers for gr1 may be significantly affected by the contamination of the blue galaxies in the X≲4.5 (arcmin) region, and hence unreliable Note (2): The local surface densities given in the table indicate those after the remaining field contaminations have been subtracted (see Section 3 for detail). In the table, H0=69km/s/Mpc, Ω0=0.3 and Λ_0-=0.7 are assumed. Note (3): r=35-arcsec aperture; flux in 10-15erg/cm2/s, luminosity in 10+44erg/s Note (4): Notes on FX as follows: b = Quoted from Stanford et al. (2001ApJ...552..504S) d = The flux (corrected for the Galactic absorption) and luminosity are given in the rest-frame 0.5-2keV band. They are converted from the 0.5-2keV count rate in the observed frame by assuming an optically thin thermal plasma model at z=1.27 with a temperature of 6keV and elemental abundances of 0.3 solar.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 10-Feb-2006
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