Mathematics – Logic
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1318d&link_type=abstract
American Astronomical Society, AAS Meeting #211, #13.18; Bulletin of the American Astronomical Society, Vol. 39, p.757
Mathematics
Logic
Scientific paper
The effects of environment on galaxies (i.e. nurture) can be better evaluated if one can compare against the properties of galaxies drawn from a sample of very isolated systems (i.e. nature). A recent morphological reevaluation of the Karachentseva (1973: CIG) sample of isolated galaxies (AMIGA Survey: Verdes-Montenegro et al. 2005; Sulentic et al. 2006) revealed that 63% of the sample were small bulge Sb-Sc spiral galaxies. We examine a subsample of 100 of this core Sb-Sc isolated population (with recession velocities in the range 1500-10000 km/s). Using Sloan Digital Sky Survey (SDSS) i-band images, we perform bulge/disk/bar/AGN decomposition using BUDDA code (de Souza, Gadotti, dos Anjos 2004) . We also derive concentration, assymetry and clumpiness (CAS parameters: Conselice 2003) using g- and i-band images from SDSS. This baseline sample is used to better quantify interaction induced effects in studies that include galaxies selected without an isolation costraint.
Durbala Adriana
Sulentic Jack W.
Verdes-Montenegro Lourdes
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