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J/A+A/495/15   A959 galaxies r' magnitude and radial velocities (Boschin+, 2009)

Internal dynamics of the galaxy cluster Abell 959. Boschin W., Barrena R., Girardi M. <Astron. Astrophys., 495, 15-26 (2009)> =2009A&A...495...15B
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Radial velocities Keywords: galaxies: clusters: individual: Abell 959 - galaxies: clusters: general - galaxies: distances and redshifts Abstract: The connection of cluster mergers with the presence of extended, diffuse radio sources in galaxy clusters is still being debated. We aim to obtain new insights into the internal dynamics of Abell 959, showing evidence of a diffuse radio source, analyzing velocities and positions of member galaxies. Our analysis is based on redshift data for 107 galaxies in the cluster field acquired at the Telescopio Nazionale Galileo. We also use photometric data from the Sloan Digital Sky Survey (Data Release 6). We combine galaxy velocities and positions to select 81 galaxies recognized as cluster members and determine global dynamical properties. We analyze the cluster searching for substructures by using the weighted gap analysis, the KMM method and the Dressler-Shectman statistics. We also study the 2D galaxy distribution in the field of the cluster. We compare our results with those from X-ray and gravitational lensing analyses. Description: Multi-object spectroscopic observations of A959 were carried out at the TNG telescope in December 2006. We used DOLORES/MOS with the LR-B Grism 1. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 46 107 Velocity catalog of 107 spectroscopically measured galaxies in the field of A959
See also: II/282 : The SDSS Photometric Catalog, Release 6 (Adelman-McCarthy+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [BBG2009] Sequential number 4 A1 --- n_[BBG2009] [*g] Note on [BBG2009] (1) 6- 7 I2 h RAh Right ascension (J2000) 9- 10 I2 min RAm Right ascension (J2000) 12- 16 F5.2 s RAs Right ascension (J2000) 18 A1 --- DE- Declination sign (J2000) 19- 20 I2 deg DEd Declination (J2000) 22- 23 I2 arcmin DEm Declination (J2000) 25- 28 F4.1 arcsec DEs Declination (J2000) 30- 34 F5.2 mag r'mag r' magnitude 35 A1 --- n_r'mag [b] Inconsistency with SDSS (2) 37- 42 I6 km/s RV Radial velocity 44- 46 I3 km/s e_RV rms uncertainty on RV
Note (1): Note as follows: * = non-cluster galaxy g = indicate the first (53) and the second (82) dominant galaxies of the cluster (I and II; see text) Note (2): 'b': a visual inspection of the SDSS r image suggests that the r' magnitude of galaxy ID 69 listed in the SDSS catalog is incorrect, possibly due to the contamination of a very close galaxy. We recompute the r' of ID 69 and present our estimate here.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 26-Apr-2009
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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