J/AJ/116/1573 Redshift Survey Compact Groups (Barton+, 1998)
Environments of Redshift Survey Compact Groups of galaxies.
Barton E.J., De Carvalho R.R., Geller M.J.
<Astron. J. 116, 1573 (1998)>
=1998AJ....116.1573B 1998AJ....116.1573B (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts ; Magnitudes
Keywords: galaxies: clusters: general - galaxies: distances and redshifts -
galaxies: interactions
Abstract:
Redshift Survey Compact Groups (RSCGs) are tight knots of N≥3
galaxies selected from the CfA2+SSRS2 redshift survey. The selection
is based on physical extent and association in redshift space alone.
We measured 300 new redshifts of fainter galaxies within 1h-1Mpc of
14 RSCGs to explore the relationship between RSCGs and their
environments. Thirteen of 14 RSCGs are embedded in overdense regions
of redshift space. The systems range from a loose group of five
members to an Abell cluster. The remaining group, RSCG 64, appears
isolated. RSCGs are isolated and distinct from their surroundings to
varying degrees, as are the Hickson compact groups. Among the 13
embedded RSCGs, three are distinct from their general environments
(RSCG 9, RSCG 11, and RSCG 85).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 66 509 Catalog of Redshifts Surrounding RSCGs
table3.tex 226 1040 LaTeX version of table 3
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See also:
VII/193 : The CfA Redshift Catalogue, Version June 1995 (Huchra+ 1995)
J/AJ/116/1 : Southern Sky Redshift Survey (Da Costa+, 1998)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension (J2000)
4- 5 I2 min RAm Right ascension (J2000)
7- 10 F4.1 s RAs Right ascension (J2000)
12 A1 --- DE- Declination sign (J2000)
13- 14 I2 deg DEd Declination (J2000)
16- 17 I2 arcmin DEm Declination (J2000)
19- 20 I2 arcsec DEs Declination (J2000)
22- 26 F5.2 mag mZU ? Approximate magnitude on Zwicky scale
28- 32 I5 km/s HRV Heliocentric velocity
34- 36 I3 km/s e_HRV rms uncertainty on HRV
38 A1 --- Source [FZ] Source (1)
40- 49 A10 --- ZCAT Name in ZCAT (Cat. VII/193)
50- 79 A30 --- Com Comments (2)
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Note (1): Z = ZCAT (Cat. VII/193), F = new FAST spectrum
Note (2): "env. of 73" indicates that the galaxy is in the environment of
RSCG 73, which we identified with the friends-of-friends
algorithm
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History: Copied by ftp at ftp://cfa0.harvard.edu/pub/barton/
(End) James Marcout, Patricia Bauer [CDS] 08-Dec-1998