Access to Astronomical Catalogues

← Click to display the menu
J/AJ/118/1489   Tully-Fisher peculiar velocities in 52 clusters   (Dale+, 1999)

Seeking the local convergence depth. V. Tully-Fisher peculiar velocities for 52 Abell clusters. Dale D.A., Giovanelli R., Haynes M.P., Campusano L.E., Hardy E. <Astron. J. 118, 1489 (1999)> =1999AJ....118.1489D
ADC_Keywords: Clusters, galaxy ; Redshifts Keywords: cosmology: observations - distance scale - galaxies: distances and redshifts Abstract: We have obtained I-band Tully-Fisher (T-F) measurements for 522 late-type galaxies in the fields of 52 rich Abell clusters distributed throughout the sky between ∼50 and 200h-1Mpc. Here we estimate corrections to the data for various forms of observational bias, most notably Malmquist and cluster population incompleteness bias. The bias-corrected data are applied to the construction of an I-band T-F template, resulting in a relation with a dispersion of 0.38mag and a kinematic zero point accurate to 0.02mag. This represents the most accurate T-F template relation currently available. Individual cluster T-F relations are referred to the average template relation to compute cluster peculiar motions. The line-of-sight dispersion in the peculiar motions is 341x93km/s, in general agreement with that found for the cluster sample of Giovanelli and coworkers. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 63 52 The SCII cluster sample table2.dat 29 52 Cluster offsets table4.dat 54 52 Cluster peculiar velocities
See also: J/AJ/118/1468 : 35 Abell clusters Tully-Fisher observations (Dale+, 1999) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster name 8- 9 I2 h RAh Right ascension (B1950.0) 11- 12 I2 min RAm Right ascension (B1950.0) 14- 15 I2 s RAs Right ascension (B1950.0) 17 A1 --- DE- Declination sign (B1950.0) 18- 19 I2 deg DEd Declination (B1950.0) 21- 22 I2 arcmin DEm Declination (B1950.0) 24- 25 A2 arcsec --- [00] 27- 29 I3 deg Glon Galactic longitude 31- 33 I3 deg Glat Galactic latitude 35- 39 I5 km/s czh Systemic velocity in the heliocentric reference frame 41- 43 I3 km/s e_czh rms uncertainty on czh 45- 49 I5 km/s czCMB Systemic velocity in the CMB reference frame 51- 53 I3 --- Nz Number of cluster member redshifts used in determining systemic velocity 55 I1 --- R ? Abell richness class 57- 63 A7 --- B-M Bautz-Morgan (1970ApJ...162L.149B) code as listed in the ACO catalog
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster name 8- 9 I2 --- NTF Number of cluster members with reliable photometry and velocity widths 11- 15 F5.2 mag ab-aTF Cluster magnitude offset from the template zero point (abias-aTF) 17- 21 F5.2 mag a-aTFc Cluster magnitude offset (corrected for the effect of cluster incompleteness) (a-aTF) 23- 24 I2 cmag e_a-aTFc rms uncertainty on a-aTF 26- 29 F4.2 mag sigmaa Dispersion in the difference between the template and the cluster's set of absolute magnitudes
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster name 9- 14 F6.3 mag a-aTF Magnitude offset from the template zero point (a-aTF) 16- 18 I3 mag e_a-aTF rms uncertainty on a-aTF 20- 24 I5 km/s czh2 Systemic velocity in the heliocentric reference frame 26- 30 I5 km/s czLG Systemic velocity in the Local Group 32- 36 I5 km/s czCMB2 Systemic velocity in the CMB reference frame 39- 43 I5 km/s VTF Tully-Fischer velocity 45- 49 I5 km/s Vpec Peculiar velocity (V=cs(1-100.2*(a-aTF)) 51- 54 I4 km/s e_Vpec rms uncertainty on Vpec
History: From AJ electronic version References: Dale et al., Paper I 1997AJ....114..455D Dale et al., Paper II 1998AJ....115..418D Dale et al., Paper IV 1999AJ....118.1468D, Cat. J/AJ/118/1468
(End) James Marcout, Patricia Bauer [CDS] 30-Nov-1999
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

catalogue service

© UDS/CNRS

Contact