J/MNRAS/365/1392 VRi'z' phot. & redshifts around RX J0152.7-1352 (Tanaka+, 2006)
Spectroscopically confirmed large-scale structures associated to
a z=0.83 cluster.
Tanaka M., Kodama T., Arimoto N., Tanaka I.
<Mon. Not. R. Astron. Soc., 365, 1392-1404 (2006)>
=2006MNRAS.365.1392T 2006MNRAS.365.1392T (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Photometry ; Redshifts
Keywords: galaxies: clusters: individual: RX J0152.7-1357 - galaxies: evolution
Abstract:
We present a discovery of definitive large-scale structures around
RX J0152.7-1352 at z=0.83 based on spectroscopic redshifts. In our
previous papers, we reported a photometric identification of the
large-scale structures at z∼0.8. A spectroscopic follow-up
observation was carried out on eight selected regions covering the
most prominent structures to confirm their association to the main
cluster. In six out of the eight fields, a well-isolated peak is
identified in the distribution of spectroscopic redshifts at or near
the cluster redshift. This is strong evidence for the presence of
large-scale structures associated to the main cluster at z=0.83.
Description:
We observed RX J0152.7-1352 with Suprime-Cam in VRi'z' under excellent
conditions.
We conducted a spectroscopic follow-up observation in 2004 October
11-14 with Faint Object Camera and Spectrograph in Multi-Object
Spectroscopy (MOS) mode.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 81 192 Catalogue of our spectroscopic objects
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See also:
J/A+A/432/381 : VLT spectroscopic survey of RX J0152.7-1357 (Demarco+, 2005)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- [TKA2006] Sequential number,
in the format "Field ID-Slit ID", FN-NN
6 A1 --- n_[TKA2006] [*] *: missing photometric redshifts due to
strong blending with nearby objects
8 I1 h RAh Right ascension (J2000)
10- 11 I2 min RAm Right ascension (J2000)
13- 17 F5.2 s RAs Right ascension (J2000)
19 A1 --- DE- Declination sign (J2000)
20- 21 I2 deg DEd Declination (J2000)
23- 24 I2 arcmin DEm Declination (J2000)
26- 30 F5.2 arcsec DEs Declination (J2000)
32- 36 F5.2 mag z'mag Total z' magnitude
(in Kron-type apertures (MAG_AUTO))
38- 41 F4.2 mag V-Rc V-Rc colour index, measured within 2" aperture
43- 47 F5.2 mag Rc-i' Rc-i' colour index, measured within 2" aperture
49- 53 F5.2 mag i'-z' i'-z' colour index, measured within 2" aperture
55- 58 F4.2 --- zph ?=- Photographic redshift
60- 65 F6.4 --- zsp Spectrosocpic redshift
67- 72 F6.4 --- zspmin Spectroscopic interval, lower limit
74- 79 F6.4 --- zspmax Spectroscopic interval, upper limit
81 I1 --- zconf [0/1] Redshift confidence flag (1)
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Note (1): Redshift confidence flag as follows:
0 = objects with secure/probable redshift estimate
1 = objects with likely redshift. zconf=1 basically assigned
to low-S/N galaxies
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Acknowledgements: Masayuki Tanaka, tanaka(at)astron.s.u-tokyo.ac.jp
(End) Patricia Vannier [CDS] 02-Jun-2006