Morphological analysis of nearby elliptical galaxies
Abstract
We report correlations among bulge-disk parameters for a sample of twenty nearby (<30 Mpc) elliptical galaxies with K band observations from (Two Micron All Sky Survey (2MASS)). The global photometric parameters were extracted using the code ``GALFIT'' assuming Sersic bulge with an optional exponential disk. The sample contains all elliptical galaxies from Swartz et al. (2004) with identified non nuclear ultra luminous sources (ULXs) with intrinsic luminosities of LX > 10^{39} ergs/s in the 0.5-8.0 keV energy band. Out of 20 galaxies, seven (35%) shows no significant disk component in it. The rest of the galaxies in the sample show significant disk component with a mean B/T ratio 0.29±0.06. No obvious differences were obtained in various two and three parameter correlations with that of Coma cluster ellipticals, even though our sample is from the nearby Universe.
- Publication:
-
Astronomical Society of India Conference Series
- Pub Date:
- 2013
- Bibcode:
- 2013ASInC...9..132P