J/ApJ/368/54 Velocities and Photometry for E and S0 galaxies (Dressler+ 1991)
New velocity dispersions and photometry for E and S0 galaxies in the
great attractor
DRESSLER A., FABER S.M., BURSTEIN D.
<Astrophys. J. 368, 54 (1991)>
=1991ApJ...368...54D 1991ApJ...368...54D
ADC_Keywords: Galaxies, optical; Radial velocities; Velocity dispersion;
Magnitudes
Keywords: galaxies: distances-galaxies: internal motions-galaxies: photometry
Description: (Abstract from the paper)
New spectroscopy and photometry have been obtained for 136 elliptical
and S0 galaxies in the direction of the large-scale streaming flow
attributed to the great attractor. Measurements of central velocity
dispersion (sigma), total B magnitudes (B_T), the photometric parameter
D_n, and the absorption-line index Mgi_2 are presented. Both internal
and external comparisons indicate that measurements of logσ are
accurate to 0.05 dex, B_T to 0.15 mag, D_n to 0.015 dex, and Mg_2 to
0.017 mag. These data have been used in a previous paper by Dressler
and Faber to estimate distances for these galaxies via the D_n -
σ relation. It is shown in this paper that the D_n - Mg_2
relation also predicts the same trends of peculiar velocity with
distance, but with less accuracy. The relative accuracy of other
distance indicators for elliptical galaxies is also discussed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . this file
table1 74 136 catalogue of velocity, total blue
magnitude, photometric diameter,
velocity dispersion, and
absorption-line index
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Byte-per-byte Description of file: table1
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Bytes Format Unit Label Explanation
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1- 5 I5 --- SPS [8,1398]+ SPS survey number (see paper)
8- 16 A9 --- NAME [ 0-9A-N-]! NGC or IC number
19- 20 A2 --- TYPE [ ES0]! morphological type
23- 25 I3 --- GRN [22-279]? group number assigned by the
authors (see paper)
28- 31 I4 km/s Vh heliocentric velocity determined in this
study
34- 37 I4 km/s Vg []? heliocentric group velocity of each GRN
41- 44 F4.2 mag AB [0,] B-band Galactic extinction
47- 51 F5.2 mag BT total blue magnitude
55- 58 F4.2 [0.1arcmin] lgDn log of photometric diameter Dn (0.1arcmin)
62- 66 F5.3 [km/s] lgSIG log of central velocity dispersion (km/s)
70- 74 F5.3 mag Mg2 Mg b absorption line index (see paper)
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Historical notes:
* The data file was provided by courtesy of D.Burstein to H. Andernach;
it was numbered A123 in H. Andernach's "List of Astronomical Catalogues
and Documents kindly provided on request by various authors"
* 15-Nov-1993: First archived.
(The date of the latest archiving, see the date of each file.)
(End) Koichi Nakajima [CDS] 15-Nov-1993