| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 136, Number 3, May I 1999
|
|
|---|---|---|
| Page(s) | 519 - 524 | |
| DOI | https://doi.org/10.1051/aas:1999232 | |
| Published online | 15 May 1999 | |
Central Mg2 indices for early-type galaxies *,**
1
CRAL-Observatoire de Lyon, CNRS UMR 142, F-69561 St-Genis-Laval Cedex, France
2
Department of Astronomy and Astronomical Observatory, University of Sofia, P.O. Box 36, BG-1504 Sofia, Bulgaria
3
Institut d'Astrophysique de Paris, 98 bis boulevard Arago, F-75014 Paris, France
Send offprint request to: Ph. Prugniel
Received:
18
June
1998
Accepted:
1
February
1999
We present 210 new measurements of the central absorption line-strength
index for 87 early-type galaxies drawn from the Prugniel & Simien (1996)
sample.
28 galaxies were not observed before.
The results are compared to measurements published previously
as available in HYPERCAT, and rescaled to the Lick system.
The mean individual internal error on these measurements is
and the mean external error is
for this series of measurements.
Key words: galaxies: elliptical and lenticular, cD / galaxies: fundamental parameters / galaxies: stellar content
© European Southern Observatory (ESO), 1999