Central Mg_2 indices for early-type galaxies

Details Central Mg_2 indices for early-type galaxies Central Mg_2 indices for early-type galaxies

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..136..519g&link_type=abstract

Astronomy and Astrophysics Supplement, v.136, p.519-524

Astronomy and Astrophysics

Astrophysics

5

Galaxies: Elliptical And Lenticular, Cd, Galaxies: Fundamental Parameters, Galaxies: Stellar Content

Scientific paper

We present 210 new measurements of the central absorption line-strength {Mg_2} index for 87 early-type galaxies drawn from the \cite[Prugniel & Simien (1996)]{PS96} 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 0.009m+/-0.003m and the mean external error is 0.012m+/-0.002m for this series of measurements. Based on observations collected at the Observatoire de Haute-Provence. Tables 1, 3 and 4 are available in electronic form from the CDS, Strasbourg (via anonymous ftp to 130.79.128.5). Tables 1 and 3 are available from CDS only.

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