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J/ApJ/669/714       Subaru weak-lensing survey. I.           (Miyazaki+, 2007)

A Subaru weak-lensing survey. I. Cluster candidates and spectroscopic verification. Miyazaki S., Hamana T., Ellis R.S., Kashikawa N., Massey R.J., Taylor J., Refregier A. <Astrophys. J., 669, 714-728 (2007)> =2007ApJ...669..714M
ADC_Keywords: Clusters, galaxy ; Redshifts ; Gravitational lensing Keywords: cosmology: observations - dark matter - large-scale structure of universe Abstract: We present the results of an ongoing weak-lensing survey conducted with the Subaru Telescope whose initial goal is to locate and study the distribution of shear-selected structures, or halos. Using a Suprime-Cam imaging survey spanning 21.82deg2, we present a catalog of 100 candidate halos located from lensing-convergence maps. Our sample is reliably drawn from that subset of our survey area (totaling 16.72deg2) uncontaminated by bright stars and edge effects and is limited at a convergence signal-to-noise ratio of 3.69. To validate the sample, detailed spectroscopic measures have been made for 26 candidates using the Subaru multiobject spectrograph, FOCAS. All are confirmed as clusters of galaxies, but two arise as the superposition of multiple clusters viewed along the line of sight. Including data available in the literature and an ongoing Keck spectroscopic campaign, a total of 41 halos now have reliable redshifts. Description: The imaging observations were largely carried out on 2003 May 1-4 and September 27 as part of an "Intensive Program" of the Subaru Telescope. The Lynx field was observed on 2003 January 29-30, SXDS data were obtained from the public archive, and the COSMOS field was observed on 2004 February 18 and 21. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 65 13 Suprime-Cam weak-lensing survey fields table2.dat 130 101 Shear-selected Halos
See also: B/subaru : Log of Subaru Prime Focus Camera Exposures (ADAC NAOJ, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Field Field name 15- 16 I2 h RAh Right ascension (J2000) 18- 19 I2 min RAm Right ascension (J2000) 21 A1 --- DE- Declination sign (J2000) 22- 23 I2 deg DEd Declination (J2000) 25- 28 F4.2 deg+2 Area Field area covered by the several Suprime-Cam pointings 30- 33 F4.2 deg+2 SArea Area used for the halo sample 35- 38 F4.2 arcsec Seeing Seeing (FWHM) (refers to average values of the constituent pointings) 40- 43 F4.2 arcsec e_Seeing rms uncertainty on Seeing 45- 48 F4.1 arcmin-2 rhoGal Galaxy density (refers to average values of the constituent pointings) (1) 50- 53 F4.1 arcmin-2 e_rhoGal rms uncertainty on rhoGal (1) 55- 57 I3 ks TexpR ?=- ROSAT exposure time 59- 61 I3 ks TexpC ?=- Chandra exposure time 63- 65 I3 ks TexpN ?=- XMM-Newton exposure time
Note (1): the published paper indicates a unit of arcmin2
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Field Field name 14- 15 I2 --- Seq Sequential number within the field (1) 17- 31 A15 --- [MHE2007] Name (SL JHHMM.m+DDMM) 33- 38 F6.2 deg RAdeg Right ascension in decimal degrees (J2000) 40- 44 F5.2 deg DEdeg Declination in decimal degrees (J2000) 46- 49 F4.2 --- S/N Signal-to-noise ratio of the kappa-map 51- 55 F5.3 --- kappa κ value (dimensionless surface mass density) 57- 58 I2 --- Ng Number of moderately bright (RC<22) galaxies around the halo within 2' 60- 63 F4.2 --- zF1 ?=- Spectroscopic redshift obtained by FOCAS 64 A1 --- --- [,] 65- 68 F4.2 --- zF2 ?=- Spectroscopic redshift obtained by FOCAS 69 A1 --- --- [,] 70- 73 F4.2 --- zF3 ?=- Spectroscopic redshift obtained by FOCAS 75- 78 F4.2 --- z ?=- Cluster redshift found in the literature (mainly from NED) 79 A1 --- n_z [P] P stands for a photometric redshift 81- 84 F4.2 --- zNEDG ?=- Redshift estimated from grouping of galaxies whose redshifts are listed in NED 86-130 A45 --- Notes Notes
Note (1): Sources identified as [MHE2007] Field NN in Simbad.
History: From electronic version of the journal References: Hamana et al. Paper II 2009PASJ...61..833H
(End) Patricia Vannier [CDS] 16-Jan-2010
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

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