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J/ApJ/602/664    Morphology of galaxies in Coma cluster core  (Gutierrez+, 2004)

Quantitative morphology of galaxies in the core of the Coma cluster. Gutierrez C.M., Trujillo I., Aguerri J.A.L., Graham A.W., Caon N. <Astrophys. J., 602, 664-677 (2004)> =2004ApJ...602..664G
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Morphology Keywords: galaxies: clusters: general - galaxies: clusters: individual (Coma) - galaxies: fundamental parameters - galaxies: kinematics and dynamics - galaxies: photometry - galaxies: structure Abstract: We present a quantitative morphological analysis of 187 galaxies in a region covering the central 0.28deg2 of the Coma Cluster. Structural parameters from the best-fitting Sersic r1/n bulge plus, where appropriate, exponential disk model, are tabulated here. This sample is complete down to a magnitude of R=17mag. By examining the recent compilation by Edwards et al. (2002ApJ...567..178E) of galaxy redshifts in the direction of Coma, we find that 163 of the 187 galaxies are Coma Cluster members and that the rest are foreground and background objects. For the Coma Cluster members, we have studied differences in the structural and kinematic properties between early- and late-type galaxies and between the dwarf and giant galaxies. Description: We have performed a quantitative morphological analysis of galaxies in the Coma Cluster, using a deep image taken in April of 2000 with the Wide-Field Camera (WFC) on the 2.5m Isaac Newton Telescope (INT) at the Roque de los Muchachos Observatory. The observations are described in detail in Marin-Franch & Aparicio (2002ApJ...568..174M). Here we outline the more relevant facts. The image was taken through a Sloan r-band filter, with a total exposure time of 3900 s (13x300s). The observations covered the inner 0.28deg2 of the central part of the cluster. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 12 59 48.7 +27 58 50 Coma cluster = ACO 1656 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 93 187 Structural parameters of galaxies analyzed in this paper
See also: VII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+ 1983) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- GMP Godwin et al. (1983, Cat. VII/42) galaxy identification 6- 16 A11 --- Name NGC/IC and Dressler (1980, Cat. VII/174) galaxy name (1) 18- 22 F5.2 mag bmag Godwin et al. (1983, VII/42) b magnitude (b26.5, instrumental magnitude) 24- 27 F4.2 mag b-r Godwin et al. (1983, VII/42) (b-r) color index 29- 33 I5 km/s Vel ? Edwards et al. (2002ApJ...567..178E) recessional velocity 35- 40 F6.2 arcmin Xpos X position from the center (2) 42- 47 F6.2 arcmin Ypos Y position from the center (2) 49- 53 F5.2 mag/arcsec2 SBB Bulge surface brightness (3) 55- 59 F5.2 arcsec Rad Bulge effective radius 61- 65 F5.2 --- n Bulge Sersic index (f(r)∝r1/n) 67- 70 F4.2 --- EllB Bulge ellipticity 72- 76 F5.2 mag/arcsec2 SBD ? Central R band disk surface brightness 78- 82 F5.2 arcsec h ? Disk scale length 84- 87 F4.2 --- EllD ? Disk ellipticity 89- 93 F5.2 --- B/T Bulge to total luminosity ratio (4)
Note (1): DNNN for [D80] ACO 1656 NNN, Dressler, 1980, Cat. VII/174 NNNNN for NGC NNNN, Cat. VII/118 Note (2): Using the usual convention X+ is E, Y+ is N. Note (3): At the R band effective radius. Note (4): B/T<0 indicates inaccurate determination of the parameters due to irregularities or the presence of structures such as bars, rings, etc.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 06-Apr-2004
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