J/A+A/416/839 Radial velocities of A2219 galaxies (Boschin+, 2004)
Internal dynamics of the radio-halo cluster A2219: a multiwavelength analysis.
Boschin W., Girardi M., Barrena R., Biviano A., Feretti L., Ramella M.
<Astron. Astrophys. 416, 839 (2004)>
=2004A&A...416..839B 2004A&A...416..839B
ADC_Keywords: Clusters, galaxy ; Radial velocities ; Photometry
Keywords: galaxies: clusters: general -
galaxies: clusters: individual: Abell 2219 -
galaxies: distances and redshifts - intergalactic medium -
cosmology: observations
Abstract:
We present the results of the dynamical analysis of the rich, hot, and
X-ray very luminous galaxy cluster A2219, containing a powerful
diffuse radio-halo. Our analysis is based on new redshift data for 27
galaxies in the cluster region, measured from spectra obtained at the
Telescopio Nazionale Galileo (TNG), with the addition of other 105
galaxies recovered from reduction of CFHT archive data in a cluster
region of about 5-arcmin radius (about 0.8Mpc/h at the cluster
distance) centered on the cD galaxy. The investigation of the
dynamical status is also performed by using X-ray data stored in the
Chandra archive. Further, valuable information comes from other bands
- optical photometric, infrared, and radio data - which are analyzed
and/or discussed, too. Our analyses support the view of the connection
between extended radio emission and merging phenomena in galaxy
clusters.
Description:
Spectroscopic redshifts for 132 galaxies in the central region of the
galaxy cluster Abell 2219 are presented. For each galaxy equatorial
coordinates, total R magnitude and B-R colour
(Harris filters), and velocity are given. Where available, we also
give a code for the spectral classification.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 66 132 Velocity catalog of 132 spectroscopically
measured galaxies
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID Galaxy identification number
4 A1 --- n_ID [*] *: non-member galaxy
8- 9 I2 h RAh Right ascension (J2000)
11- 12 I2 min RAm Right ascension (J2000)
14- 18 F5.2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 31 F4.1 arcsec DEs Declination (J2000)
34- 38 F5.2 mag Rmag ? Total R (Harris) magnitude
41- 44 F4.2 mag B-R ? B-R (Harris) colour index
47- 52 I6 km/s HRV Heliocentric radial velocity
55- 57 I3 km/s e_HRV 1-sigma error on the HRV
60- 62 A3 --- SC Spectroscopic classification (1)
65 A1 --- Tel [CT] Telescope used to get the spectrum (2)
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Note (1): Spectroscopic classification:
e: e-type galaxy (see the paper)
k: k-type galaxy
a: a-type galaxy
i: i-type galaxy
R: radio emitting galaxy
I: mid-IR emitting galaxy
Note (2): Telescope used:
C: Canada France Hawaii Telescope (CFHT)
T: Telescopio Nazionale Galileo (TNG)
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Acknowledgements: Walter Boschin
(End) Walter Boschin [Universita' di Trieste, Italy] 16-Dec-2003