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For refcode 2002A&A...395..431B:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2002A&A...395..431B Line-strength indices and velocity dispersions for 148 early-type galaxies in different environments J. Beuing, R. Bender, C. Mendes de Oliveira, D. Thomas and C. Maraston Instituto Astronomico e Geofisico, Universidade de Sao Paulo, Avenida Miguel Stefano 4200, 04301-904 Sao Paulo, SP, Brazil Universitats-Sternwarte Munchen, Scheinerstr. 1, 81679 Munchen, Germany Received 30 July 2001/Accepted 26 August 2002 Abstract. We have derived high quality line-strength indices and velocity dispersions for a sample of 148 early-type galaxies in different environments. The wavelength region covered by the observations ({lambda} ~ 4600 to 6600 A) includes the Lick/IDS indices H{beta}, Mg_1_, Mg_2_, Mgb, Fe5015, Fe5270, Fe5335, Fe5406, Fe5709, Fe5782, NaD, TiO_1_ and TiO_2_. The data are intended to address possible differences of the stellar populations of early-type galaxies in low- and high-density environments. This paper describes the sample properties, explains the data reduction and presents the complete list of all the measurements. Most galaxies of the sample (85%) had no previous measurements of any Lick/IDS indices and for 30% of the galaxies we present first-time determinations of their velocity dispersions. Special care is taken to identify galaxies with emission lines. We found that 62 per cent of the galaxies in the sample have emission lines, as measured by the equivalent width of the [OIII] 5007A line, EW[OIII] > 0.3 A. Key words: galaxies: elliptical and lenticular, cD - galaxies: abundances - galaxies: stellar content
Retrieve 148 NED objects in this reference.
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