J/ApJ/539/577 Galaxy morphologies in Cl 1358+62 (Fabricant+, 2000)
Galaxy morphologies in the cluster Cl 1358+62 at z=0.33.
Fabricant D., Franx M., Van Dokkum P.
<Astrophys. J. 539, 577 (2000)>
=2000ApJ...539..577F 2000ApJ...539..577F
ADC_Keywords: Clusters, galaxy ; Redshifts ; Morphology
Keywords: galaxies: clusters: individual (Cl 1358+62) - galaxies: evolution -
galaxies: structure
Abstract:
We describe the morphological composition of a sample of 518 galaxies
in the field of Cl 1358+62 at z=0.33, drawn from a large Hubble Space
Telescope mosaic covering 53 square arcminutes. The sample is complete
to I=22, corresponding to MV=-18.5 in the rest frame. The galaxy
morphologies have been independently classified by the authors of this
paper and by Alan Dressler. Dressler's classifications place our work
in context with the previous MORPHS study and allow us to estimate the
scatter between different sets of visual classifications. We restrict
most of our analysis to the brighter part of the sample, I<21
(MV←19.5), where the scatter between the two sets of
classifications is 1 in morphological type.
Objects:
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RA (2000) DE Designation(s)
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13 59 54.0 +62 30 36 ClG 1358+62 = ZwCl 1358+6245
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 41 298 Morphogical catalog for Cl 1358+62
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See also:
J/ApJ/498/195 : Spectroscopic survey of CL 1358+62 (Fisher+ 1998)
J/ApJ/500/714 : Color-magnitude relation in CL 1358+62 (Van Dokkum+ 1998)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Sequential number
6- 12 F7.2 pix Xpos X position (1)
14- 20 F7.2 pix Ypos Y position (1)
22- 26 F5.2 mag Imag I magnitude
28- 33 I6 km/s cz ? Redshift (2)
35- 37 I3 --- Type1 ?=999 DF/MF/PvD morphological type (3)
39- 41 I3 --- Type2 ?=999 AD (Alan Dressler) morphological type (4)
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Note (1): Each pixel for the X and Y positions corresponds to 0.1", and the
cluster center is taken to be coincident with the center of galaxy 810
at 2801.93, 2719.27. This corresponds to 13:58:20.7+62:45:33 (B1950.0).
Note (2): We consider those galaxies with 94318<cz<102532 to be cluster
members.
Note (3): DF/MF/PvD classification -5/9; 15; 99; 999:
-5 (elliptical), -4 (elliptical or S0), -2 (S0), 0 (S0 or Sa), 1 (Sa),
3 (Sb), 5 (Sc), 7 (Sd), 9 (Sm), 10 (Im), and 99 (peculiar or merger).
Intermediate types (2, 4, 6, and 8) were also assigned, with type 15
for intermediate late types.
Note (4): AD classification:
Following the completion of the DF/MF/PvD classifications, AD
independently classified the Cl 358+62 galaxies according to
techniques described in Smail et al. (1997ApJS..110..213S 1997ApJS..110..213S). AD does
not assign galaxies to the DF/MF/PvD intermediate types -4 (E or S0)
or 0 (S0 or Sa) in the same fashion, preferring to subdivide these
into E/S0 (-4), S0/E (-3), S0/Sa (-1), and Sa/S0 (0). When discussing
the cluster population in broad terms, AD's types -5 and -4 are
combined into E, types -3, -2, and -1 into S0, and etc. DF/MF/PvD
split the contents of the -4 bin equally into E and S0, and the 0 bin
equally into S0 and Sa. When converting AD's descriptive types into
numerical types, we have placed a few galaxies into the merger (99)
bin where an individual catalog object corresponds to an interacting
or merging pair of objects.
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History:
From ApJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 06-Nov-2000