J/AJ/128/62 Catalog of double nucleus disk galaxies (Gimeno+, 2004)
Catalog of double nucleus disk galaxies.
Gimeno G.N., Diaz R.J., Carranza G.J.
<Astron. J., 128, 62-67 (2004)>
=2004AJ....128...62G 2004AJ....128...62G
ADC_Keywords: Galaxies, peculiar ; Redshifts ; Morphology
Keywords: galaxies: nuclei - galaxies: peculiar - galaxies: statistics
Abstract:
We have compiled a catalog of disk galaxies that have a double
nucleus, through systematic examination of existing catalogs and
publications. The Catalog of Double Nucleus Disk Galaxies includes 107
objects, together with their basic data. The aim of the catalog is to
provide a more systematic and homogeneous basis for the study of the
relevance of galaxy interactions and minor mergers in the formation of
these double nuclei. We have also investigated possible correlations
between geometric and photometric parameters of the double nuclei and
their host galaxies. The preliminary results indicate the presence of
several significant correlations that should be considered in any
theoretical scenario describing minor mergers and disk galaxy
evolution
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 84 107 Double Nucleus Disk 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 --- Seq Object identification number
5- 18 A14 --- Name Object name
20- 21 I2 h RAh Hour of right ascension (J2000)
23- 24 I2 min RAm Minute of right ascension (J2000)
26- 27 I2 s RAs Second of right ascension (J2000)
29 A1 --- DE- Sign of the declination (J2000)
30- 31 I2 deg DEd Degree of declination (J2000)
33- 34 I2 arcmin DEm Arcminute of declination (J2000)
36- 37 I2 arcsec DEs Arcsecond of declination (J2000)
39- 43 I5 km/s cz ? Redshift
45- 47 F3.1 arcmin aaxis Major axis
49- 52 F4.2 arcmin baxis Minor axis
54- 57 F4.1 mag Bmag ? Apparent B-band magnitude
59- 62 F4.1 arcsec DR Angular nuclei separation
64 I1 --- Class [1/3] Degree of confidence, from 1=highest (1)
66- 69 F4.2 --- DR/aaxis Ratio of angular nuclei separation to
major axis
71- 74 F4.1 kpc Diam ? Galaxy diameter (h=0.75)
76- 78 F3.1 kpc DRkpc ? Nuclei separation in kpc
80- 84 F5.1 mag BMAG ? Absolute B-band magnitude
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Note (1): FITS images of the objects from the DSS (second-generation red band)
were used to determine the angular projected separations between the
nuclei, and the determination was assigned a degree of confidence.
1 = (highest) for well-resolved nuclei (two clearly separated
intensity peaks)
2 = intermediate cases, i.e., resolved nuclei but intensity peaks
overlapping at a value higher than the half maximum of the
fainter one.
3 = (lowest) for barely resolved nuclei (or not resolved at all but
still reported as double in the literature in this case, only an
elongated nuclear region is evident, and its elongation is taken
as representative of the separation).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 22-Jan-2007