J/A+AS/101/475 Spectroscopic observations of A3571 (Quintana+, 1993)
Spectroscopic observations of the galaxy cluster A 3571 (SC 1344-325)
Quintana H., de Souza R.
<Astron. Astrophys. Suppl. Ser. 101, 475 (1993)>
=1993A&AS..101..475Q 1993A&AS..101..475Q (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Radial velocities
Keywords: clusters of galaxies - X-ray clusters - galaxies velocities
Abstract:
Spectroscopic data and density counts are presented for this southern
cluster, which seems to belong to the outskirts of the Shapley 8
concentration (= A 3558 = SC 1326-311). Using telescopes at the Cerro
Tololo Interamerican Observatory and La Silla Observatory a total of
72 galaxy velocities were measured giving a mean redshift of 0.0384
and a global velocity dispersion of 1022 (+99, -77) km/s. A
preliminary analysis of velocity and density data suggests the
presence of various subgroups. The central core of the cluster is
dominated by a very elongated, distorded and diffuse cD galaxy. This
cluster may be an example where the cD was formed early in the
collapse process of a cluster which has not reached overall
virialization yet. The derived X-ray luminosity of ∼2x1044erg/s in
the 2-6keV band places this cluster in the group of strong X-ray
cluster sources.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 68 72 Galaxy velocities in SC 1344-325 = A 3571
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Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 3 I3 --- Name Object name
6- 7 I2 h RAh Right ascension (1950)
9- 10 I2 min RAm Right ascension (1950)
12- 15 F4.1 s RAs Right ascension (1950)
17 A1 --- DE- Declination sign
18- 19 I2 deg DEd Declination (1950)
21- 22 I2 arcmin DEm Declination (1950)
24- 25 I2 arcsec DEs Declination (1950)
28- 32 I5 km/s HV Heliocentic velocity
34- 35 I2 --- Nline ? Number of lines measured in each spectrum
37- 42 A6 --- Qual Quality comment
44- 49 A6 --- Tel Telescope (1)
51- 54 A4 --- Group Subclustering group
56- 68 A13 --- Note Notes
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Note (1): 3.6OPT: OPTOPUS
T1IT: CTIO 1m
E1IT: ESO 1.5m
T4V: CTIO 4m
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History:
OCR by LEDA team (Lyon Observatory) for the name, position and
velocity columns, proof-read by H. Andernach in December 1994
(LEDA ref no. 24257). The other columns were added at CDS.
(End) Patricia Bauer [CDS] 18-Nov-1997