TY - JOUR AU - Sánchez Blázquez, Patricia AU - Gorgas García, Francisco Javier AU - Cardiel López, Nicolás AU - Cenarro, J. AU - González, J. J. PY - 2003 SN - 0004-637X UR - https://hdl.handle.net/20.500.14352/51341 T2 - Astrophysical journal AB - Central line-strength indices were measured in the blue spectral region for a sample of 98 early-type galaxies in different environments. For most indices (Mg b and [Fe] in particular), elliptical galaxies in rich clusters and in low-density regions... LA - eng M2 - L91 PB - IOP Publishing KW - Old stellar populations KW - Elliptic galaxies KW - Coma cluster KW - Environments KW - Indexes KW - Nuclei KW - Model KW - Stars TI - Differences in carbon and nitrogen abundances between field and cluster early-type galaxies TY - journal article VL - 590 ER -