J/A+AS/134/75 Central Fornax Cluster. II. Galaxy spectroscopy (Hilker+ 1999)
The central region of the Fornax cluster. II. Spectroscopy and radial
velocities of member and background galaxies
Hilker M., Infante L., Vieira G., Infante L., Kissler-Patig M.,
Richtler T.
<Astron. Astrophys. Suppl. Ser. 134, 75 (1999)>
=1999A&AS..134...75H 1999A&AS..134...75H (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Radial velocities
Keywords: galaxies: clusters: individual: Fornax cluster -
galaxies: distances and redshifts - galaxies: abundances -
galaxies: dwarfs
Description:
In this paper, radial velocities of 94 galaxies brighter than about
V_tot=20mag in the direction of the central Fornax cluster have
been measured. The galaxies have been selected from the photometric
catalog of Paper I (Hilker et al., 1998, Cat. J/A+AS/134/59). Most
of the velocity determinations of the fainter galaxies are based on
strong emission lines of late type galaxies. Table 2 of this paper
contains the position, magnitude and velocity of all galaxies. Except
for 8 Fornax members, all galaxies lie in the background. Among the 8
members, there are 5 nucleated dwarf ellipticals that are already
listed in the FCC (Ferguson, 1989, Cat. VII/180). Two of the 3
"new" members are very compact and have surface brightnesses
comparable to globular clusters, however their luminosities are in the
range of dwarf elliptical nuclei.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 93 94 Radial velocities of galaxies
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See also:
VII/180 : Galaxies in 3.5 degs of Fornax cluster (Fergusson+ 1989)
J/A+AS/134/59 : Paper I. Galaxy photometry (Hilker+ 1999)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- CGF Catalog name of the object (1)
12- 19 A8 --- Mtype Morphological type
22 I1 h RAh Right ascension (J2000)
24- 25 I2 min RAm Right ascension (J2000)
27- 31 F5.2 s RAs Right ascension (J2000)
34 A1 --- DE- Declination sign
35- 36 I2 deg DEd Declination (J2000)
38- 39 I2 arcmin DEm Declination (J2000)
41- 44 F4.1 arcsec DEs Declination (J2000)
47- 51 F5.2 mag Vtot Total V apparent magnitude
54- 58 I5 km/s RVcr ? Heliocentric velocity from cross correlation
61- 64 F4.1 --- Rcr ? R value (amplitude of cross corr. peak)
67- 71 I5 km/s RVrv ? Heliocentric velocity (task rvidlines)
74- 78 I5 km/s RVem ? Heliocentric velocity from emission lines
81- 85 I5 km/s RV Adopted heliocentric velocity
88- 90 I3 km/s e_RV Mean error of different vel. determinations
93 I1 --- q_RV Quality parameter of vel. determination (2)
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Note (1): The catalog names are prefixed by the acronym CGF (Catalog of
Galaxies in Fornax) followed by a sequence number of the field
and the sequence number of the galaxy in this field (see Appendix A
of Paper I, Hilker et al., 1998, Cat. J/A+AS/134/59).
The letters "a" and "b" appended to the catalog name indicate two
possible velocity determinations of the object. Three objects are
prefixed by the acronym FCC (Fornax Cluster Catalog, Ferguson, 1989,
Cat. VII/180). They are not present in our photometric catalog
of Paper I, and there positions are taken from the FCC.
In this table the galaxies are ordered with increasing right ascension
Note (2): We defined 4 classes of quality due to the clearness/evidence of the
velocity identification:
(1) a clear and evident identification, both velocity determination
methods agree very well
(2) very probable identification, almost clear
(3) doubtful, but most probable value
(4) very doubtful, only a try
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(End) M. Hilker [Pontifica Universidad Catolica, Santiago] 30-Jun-1998