J/A+A/490/923 Morphology of galaxies in Coma cluster direction (Michard+, 2008)
Morphology and membership of galaxies in the Coma cluster direction,
down to MB=-14.25.
I. A catalog of 473 members.
Michard R., Andreon S.
<Astron. Astrophys. 490, 923 (2008)>
=2008A&A...490..923M 2008A&A...490..923M
ADC_Keywords: Clusters, galaxy ; Morphology ; Galaxies, photometry
Keywords: galaxies: luminosity function, mass function -
galaxies: elliptical and lenticular, cD - galaxies: spirals -
galaxies: dwarf - galaxies: clusters: individual: Coma
Abstract:
This paper presents morphological type, membership and U-V colour
for a sample of galaxies in the Coma cluster direction, complete down
to MB=-15.00mag and extending down to MB=-14.25mag. We have
examined 1155 objects from the GMP 1983 catalogue on B and V images of
the CFH12K camera, and obtained the Hubble type in most cases. Coma
cluster membership for 473 galaxies has been derived using morphology,
apparent size and surface brightness, and, afterward, redshift. The
comparison between morphology- and redshift- memberships and of
luminosity functions derived from this morphologically-selected
sample, or using statistical members or spectroscopic members, both
show that the morphological membership provided here can be trusted.
For the first time the morphological classification of Coma galaxies
reaches faint enough magnitudes to observe the whole magnitude range
of the giant types, E, S0 and spiral stages. The data presented in
this paper makes our sample the richest environment where membership
and morphology for complete samples down to faint magnitudes
(MB~-15mag) are available, hence enlarging the baseline of
environmental studies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablee1.dat 58 1155 Morphology and membership of galaxies in the
Coma cluster line of sight
tablee2.dat 60 314 U-V and V aperture-corrected data for Coma
member galaxies
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See also:
VII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+ 1983)
Byte-by-byte Description of file: tablee1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- GMP ?=9999 GMP number (1983, Cat. VII/24)
identification number, but for first entry
(ID=9999) missing there
6- 10 I5 pix Xpos GMP x coordinate
12- 16 I5 pix Ypos GMP y coordinate
18- 22 F5.2 mag bmag GMP b-band integrated magnitude
24- 27 F4.2 mag b-r GMP b-r colour index
29- 34 F6.4 --- z ?=0.0000 Adopted redshift
36- 42 A7 --- MType Morphological type
45- 48 A4 --- Memb Membership code (G1)
52- 58 A7 --- Com Individual comments (2)
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Note (2): Notes as follows:
ble = blend i.e. strongly overlapping objects
dlo = doubtful location
pip = possibly interacting pair
sin = strongly inclined
tfc = too faint to classify
tpb = technical problem (CCD defects, bright star too close, image
cut by CCD edge, etc.).
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Byte-by-byte Description of file: tablee2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- [TCB2001] Terlevich (2001MNRAS.326.1547) id number
6- 9 I4 --- GMP GMP (Cat. VII/42) id number
11- 15 I5 pix Xpos GMP x coordinate
17- 21 I5 pix Ypos GMP y coordinate
23- 27 F5.2 mag Vmag Aperture-corrected V magnitude
29- 32 F4.2 mag e_Vmag Error on Vmag (1)
34- 37 F4.2 mag U-V Aperture-corrected U-V colour index
39- 42 F4.2 mag e_U-V Error on U-V (1)
44- 49 F6.4 --- z ?=0.0000 Adopted redshift (from tablee1.dat)
51- 56 A6 --- MType Morphological type (from tablee1.dat)
58- 60 A3 --- Memb Membership code (from tablee1.dat) (G1)
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Note (1): From Terlevich (2001MNRAS.326.1547), rounded to 2 decimals,
see text for an independent assessment.
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Global notes:
Note (G1): Membership code as follows:
in = member
far = not member (details in the text)
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Acknowledgements:
Stefano Andreon, stefano.andreon(at)brera.inaf.it
(End) Patricia Vannier [CDS] 02-Sep-2008