Title | Star Formation Histories of Early-Type Galaxies. I. Higher Order Balmer Lines as Age Indicators |
Authors | Caldwell, Nelson; Rose, James A.; Concannon, Kristi Dendy |
Bibcode | 2003AJ....125.2891C Search ADS ↗ |
Abstract | We have obtained blue integrated spectra of 175 nearby early-type galaxies, covering a wide range in galaxy velocity dispersion and emphasizing those with σ<100 km s-1. Galaxies have been observed both in the Virgo Cluster and in lower density environments. The main goals are the evaluation of higher order Balmer lines as age indicators and differences in stellar populations as a function of mass, environ ... |
Objects | 175 Objects Search NED ↙ |