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J/MNRAS/321/277 EFAR Catalog. VII. (Colless+, 2001)
The peculiar motions of early-type galaxies in two distant regions - VII. Peculiar velocities and bulk motions Colless M.M., Saglia R.P., Burstein D., Davies R.L., McMahan R.K., Wegner G. <Mon. Not. R. Astron. Soc. 321, 277 (2001)> =2001MNRAS.321..277C
ADC_Keywords: Galaxies, spectra ; Radial velocities ; Velocity dispersion ; Morphology Keywords: galaxies: clusters: general - galaxies: distances and redshifts - galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - large-scale structure of Universe Abstract: We present peculiar velocities for 85 clusters of galaxies in two large volumes at distances between 6000 and 15000km/s in the directions of Hercules-Corona Borealis and Perseus-Pisces-Cetus (the EFAR sample). These velocities are based on Fundamental Plane (FP) distance estimates for early-type galaxies in each cluster. We fit the FP using a maximum likelihood algorithm which accounts for both selection effects and measurement errors, and yields FP parameters with smaller bias and variance than other fitting procedures. We obtain a best-fitting FP with coefficients consistent with the best existing determinations. We measure the bulk motions of the sample volumes using the 50 clusters with the best-determined peculiar velocities. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 282 795 EFAR summary data table table2.dat 103 115 Redshifts, distances and peculiar velocities for EFAR clusters in the CMB frame
See also: J/ApJS/106/1 : EFAR cluster and galaxy selection. I (Wegner+, 1996) J/MNRAS/305/259 : EFAR gal. redshifts + velocity disp. II (Wegner+, 1999) J/MNRAS/292/499 : EFAR photometric data. III. (Saglia+, 1997) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- GIN Galaxy Identification Number 5- 6 I2 --- CID Cluster Identification (see EFAR Paper I, J/ApJS/106/1) 8- 10 I3 --- CAN Cluster Assignment Number (usually, last 2 digits = CID; see EFAR Paper II, J/MNRAS/305/259) 12- 19 A8 --- Cluster Cluster Name (corresponds to CID) 21- 22 A2 --- Galaxy Galaxy designation in cluster 24- 25 I2 h RAh Right Ascension (J2000) 27- 28 I2 min RAm Right Ascension (J2000) 30- 35 F6.3 s RAs Right Ascension (J2000) 37 A1 --- DE- Declination sign (J2000) 38- 39 I2 deg DEd Declination (J2000) 41- 42 I2 arcmin DEm Declination (J2000) 44- 47 F4.1 arcsec DEs Declination (J2000) 49- 54 F6.2 deg GLON Galactic longitude 56- 61 F6.2 deg GLAT Galactic latitude 63- 66 A4 --- MType Morphological type 68- 73 F6.2 arcsec Dn Diameter enclosing a mean R-band surface brightness of 20.5 mag/arcsec2 75- 78 F4.2 arcsec e_Dn Error in Dn 80- 85 F6.2 arcsec Dn20 Diameter enclosing a mean R-band surface brightness of 20 mag/arcsec2 87- 92 F6.2 arcsec Dn19.25 Diameter enclosing a mean R-band surface brightness of 19.25 mag/arcsec2 94- 98 F5.2 arcsec Re Half-luminosity radius in R-band 100-104 F5.2 kpc Rekpc Half-luminosity radius in R-band (kpc, H0=50, q0=0.5) 106-110 F5.2 mag/arcsec+2 SBe R-band surface brightness at Re 112-115 F4.2 mag/arcsec+2 e_SBe Photometric zero-point error on SBe 117-121 F5.2 mag/arcsec+2 <SBe> Mean R-band surface brightness inside Re 123-126 F4.2 mag/arcsec+2 e_<SBe> Photometric zero-point error on <SBe> 128-132 F5.2 mag Mtot Total apparent R magnitude 134-137 F4.2 mag e_Mtot Photometric zero-point error on Mtot 139-143 F5.2 arcsec ReB Bulge half-luminosity radius in R-band 145-149 F5.2 mag/arcsec+2 SBeB Bulge R-band surface brightness at ReB 151-155 F5.2 arcsec h Disk scale-length in R-band 157-161 F5.2 mag/arcsec+2 mu0 Disk central surface brightness in R-band 163-167 F5.3 --- h/ReB Ratio of bulge half-luminosity radius to disk scale-length 169-174 F6.3 --- D/B Disk-to-bulge ratio (ratio of luminosity in disk to luminosity in bulge) 176-179 A4 --- Fit Type of fit (1) 181 I1 --- P [0/1] Quality of the photometric zero-point (2) 183 I1 --- Q Global quality of the photometric fit (see EFAR Paper III, J/MNRAS/292/499) 185-189 F5.3 mag B-R B-R colour 191-194 F4.2 mag e_B-R Error in B-R colour 196-199 F4.2 --- e(Re) Mean ellipticity inside Re 201-205 F5.3 --- AR Reddening in R-band 207-211 I5 km/s czCl Cluster mean redshift 213-215 I3 km/s e_czCl Error in cluster mean redshift 217-221 I5 km/s cz Galaxy redshift 223-225 I3 km/s e_cz Error in galaxy redshift 227-229 I3 km/s sigma Central velocity dispersion of galaxy 231-233 I3 km/s e_sigma Error in central velocity dispersion 235-238 F4.2 0.1nm Mgb Lick Mgb line-strength index 240-243 F4.2 0.1nm e_Mgb Error in Lick Mgb index 245-249 F5.3 0.1nm Mg2 Lick Mg2 line-strength index 251-256 F6.4 0.1nm e_Mg2 Error in Lick Mg2 index 258 A1 --- QS [A-E] Spectral quality (3) 260 A1 --- AE Flag for absorption (a) or emission (e) 262-265 F4.2 [arcsec] logDw logarithm of the Dw diameter 267-271 F5.3 --- SDw Selection probability computed using Dw 273-276 F4.2 [arcsec] logDwDn logarithm of Dw computed from Dn 278-282 F5.3 --- SDwDn Selection probability computed from DwDn
Note (1): B=bulge, D=disk, BD=bulge+disk; other, see EFAR Paper III, J/MNRAS/292/499 Note (2): P=0 good, P=1 bad; see EFAR Paper III, J/MNRAS/292/499 Note (3): A=best, ..., E=worst; see EFAR Paper II, J/MNRAS/305/259
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- CAN Cluster Assignment Number (see EFAR paper II, J/MNRAS/305/259) (1) 5 I1 --- FP [0/1] Whether cluster is in the Fundamental Plane (1) sample or (0) not 7 I1 --- PV [0/1] Whether cluster is in the peculiar velocity (1) sample or (0) not 9- 17 A9 --- Name Cluster name (in parentheses for fore- and background groups) 19- 20 I2 --- Ng Number of galaxies used in the distance determination 22- 27 F6.2 deg GLON Galactic longitude 29- 34 F6.2 deg GLAT Galactic latitude 36- 42 F7.4 --- delta Bias-corrected Fundamental Plane shift 44- 49 F6.4 --- e_delta rms uncertainty in delta 51- 57 F7.4 --- edelta Bias correction εδ subtracted from raw value of δ 59- 63 I5 km/s cz Cluster redshift 65- 67 I3 km/s e_cz rms uncertainty in cz 69- 73 I5 km/s D Bias-corrected cluster distance 75- 79 I5 km/s e_D rms uncertainty in D 81- 85 I5 km/s czD Redshift corresponding to D 87- 91 I5 km/s e_czD rms uncertainty on czD 93- 97 I5 km/s Vpec Peculiar velocity of the cluster 99-103 I5 km/s e_Vpec rms uncertainty in V
Note (1): Some EFAR clusters are missing from this list: CAN 81 because it has been combined with CAN 80 (see EFAR paper II, J/MNRAS/305/259); CANs 41, 47, 54 and some fore- and background groups (CANs>100) because no cluster members meet the selection criteria.
Acknowledgements: Matthew Colless References: Wegner et al., Paper I 1996ApJS..106....1W, Cat. J/ApJS/106/1 Wegner et al., Paper II 1999MNRAS.305..259W, Cat. J/MNRAS/305/259 Saglia et al., Paper III 1997MNRAS.292..499S, Cat. J/MNRAS/292/499 Saglia et al., Paper IV 1997ApJS..109...79S Colless et al., Paper V 1999MNRAS.303..813C Saglia et al., Paper VI 2001MNRAS.324..389S
(End) Patricia Bauer [CDS] 28-Aug-2000
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