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J/A+A/524/A6   Evolution of spectral early-type galaxies         (Saglia+, 2010)

The fundamental plane of EDisCS galaxies. The effect of size evolution. Saglia R.P., Sanchez-Blazquez P., Bender R., Simard L., Desai V., Aragon-Salamanca A., Milvang-Jensen B., Halliday C., Jablonka P., Noll S., Poggianti B., Clowe D.I., De Lucia G., Pello R., Rudnick G., Valentinuzzi T., White S.D.M., Zaritsky D. <Astron. Astrophys., 524, A6-6 (2010)> =2010A&A...524A...6S
ADC_Keywords: Galaxies, spectra ; Redshifts ; Velocity dispersion Keywords: galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: formation - galaxies: fundamental parameters Abstract: We study the evolution of spectral early-type galaxies in clusters, groups, and the field up to redshift 0.9 using the ESO Distant Cluster Survey (EDisCS) dataset. We measure structural parameters (circularized half-luminosity radii Re, surface brightness Ie, and velocity dispersions sigma) for 154 cluster and 68 field galaxies. On average, we achieve precisions of 10% in Re, 0.1dex in logIe, and 10% in sigma. We sample ∼20% of cluster and ∼10% of field spectral early-type galaxies to an I band magnitude in a 1arcsec radius aperture as faint as I1=22. We study the evolution of the zero point of the fundamental plane (FP) and confirm results in the literature, but now also for the low cluster velocity dispersion regime. Description: The sample of galaxies analyzed in this paper consists of spectroscopic early-type objects. We considered the flux-calibrated spectra reduced in Halliday et al. (2004, Cat. J/A+A/427/397) and Milvang-Jensen et al. (2008, Cat. J/A+A/482/419) of galaxies with early spectral type (1 or 2). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 85 192 The FP parameters of cluster galaxies table2.dat 85 78 The FP parameters of field galaxies table3.dat 56 154 The structural parameters of galaxies with measured velocity dispersions and HST photometry derived from Sersic fits to HST images and bulge+disk fits to VLT images
See also: J/A+A/427/397 : Redshifts of 5 EDisCS galaxy clusters (Halliday+, 2004) J/A+A/482/419 : ESO Distant Cluster Survey, EDisCS. II (Milvang-Jensen+, 2008) Byte-by-byte Description of file: table[12].dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [EDCSN] 6- 21 A16 --- EDCSN Galaxy EDCSN name, JHHMMSSs+DDMMSS 23- 24 I2 --- Nclus ? Number of cluster (only in table1) 26- 31 F6.4 --- z Redshift 33 I1 --- S [1/2] Galaxy spectral type 35- 39 F5.1 km/s sig.m Measured velocity dispersion 41- 45 F5.1 km/s sig.c Corrected velocity dispersion 47- 50 F4.1 km/s e_sig rms uncertainty on sigma 52- 58 F7.4 kpc Re Circularized half-luminosity radius 60- 66 F7.5 [Lsun/pc2] logIe Surface brightness 67- 68 I2 --- TType ?=* Galaxy T Type 70- 74 F5.3 --- Psig sigma-completeness probability of the velocity dispersion measurements 76- 80 F5.2 [Msun] logM* Galaxy mass 82- 85 F4.2 [Msun] e_logM* rms uncertainty on Mass
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [EDCSN] 6- 21 A16 --- EDCSN Galaxy EDCSN name, JHHMMSSs+DDMMSS 23- 29 F7.4 kpc ReS Circularized half-luminosity radius from Sersic fits to HST images 31- 35 F5.3 [Lsun/pc2] logIeS Surface brightness from Sersic fits to HST images 37- 43 F7.4 kpc ReV Circularized half-luminosity radius from bulge+disk fits to VLT images 46- 51 F6.4 [Lsun/pc2] logIeV ? Surface brightness from bulge+disk fits to VLT images 52- 56 I5 --- n_logIeV ? logIeV value for ReV=0
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 01-Apr-2011
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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