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J/ApJ/500/714       Color-magnitude relation in CL 1358+62    (Van Dokkum+ 1998)

The color-magnitude relation in CL 1358+62 at z = 0.33: evidence for significant evolution in the S0 population. Van Dokkum P.G., Franx M., Kelson D.D., Illingworth G.D., Fisher D., Fabricant D. <Astrophys. J. 500, 714 (1998)> =1998ApJ...500..714V
ADC_Keywords: Clusters, galaxy ; Photometry Keywords: galaxies: clusters: individual: CL 1358+6345 - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: photometry - galaxies: spiral Abstract: We use a large, multicolor mosaic of HST WFPC2 images to measure the colors and morphologies of 194 spectroscopically confirmed members of the rich galaxy cluster CL 1358+62 at z=0.33. We study the color-magnitude (CM) relation as a function of radius in the cluster to a limit of 4.6' from the center, equivalent to 1.6h-150Mpc. The intrinsic scatter in the rest-frame B-V CM relation of the elliptical galaxies is very small, ∼0.022mag. The CM relation of the ellipticals does not depend significantly on the distance from the cluster center. In contrast, the CM relation for the S0 galaxies does depend on radius: the S0's in the core follow a CM relation similar to that of the ellipticals, but at large radii (R>0.7h-150Mpc) the S0's are systematically bluer and the scatter in the CM relation approximately doubles, to ∼0.043mag. The blueing of the S0's at large radii is significant at the 95% confidence level. These results imply that the S0 galaxies in the outer parts of the cluster have formed stars more recently than the S0's in the inner parts. Objects: --------------------------------------------------------------------- RA (2000) DE Designation(s) --------------------------------------------------------------------- 13 59 54 +62 30.6 ClG 1358+62 = ZwCl 1358+6245 = 2E 1358.3+6246 --------------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 54 194 CL 1358+62 galaxies catalog
See also: J/ApJ/498/195 : Spectroscopic survey of CL 1358+62 (Fisher+ 1998) J/ApJ/539/577 : Galaxy morphologies in Cl 1358+62 (Fabricant+, 2000) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- [FFF98] Identification number ([FFF98] NNNN) 6- 11 F6.1 arcsec xpos X position (1) 13- 18 F6.1 arcsec ypos Y position (1) 20- 23 A4 --- MType Morphological type 25 I1 --- n [1/4] Dimension of the model law (2) 27- 31 F5.2 mag F814W F814W colour 33- 37 F5.2 mag Vzmag V_z_ magnitude (3) 39- 43 F5.3 mag F606W-F814W F606W-F814W colour index 45- 49 F5.3 mag (B-V)z (B-V)_z_ colour index (3) 51- 54 F4.2 arcsec rc Aperture radius
Note (1): Positions are given with respect to the brightest cluster galaxy (number 375) at 13:58:20.7+62:45:33 (1950), with positive x to the west and positive y to the north Note (2): All images of the cluster galaxies were fitted with two-dimensional r1/n law models (n=4 is de Vaucouleurs' model) Note (3): defined as: Vz= F814W + 0.20(F606W-F814W) + 0.65 (B-V)z= 0.82(F606W-F814W) - 0.13
History: From ApJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 31-Aug-1998
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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