Statistical analysis of dwarf galaxies and their globular clusters in the Local Volume
arXiv:1203.0122 · doi:10.1088/0004-637X/724/1/678
Abstract
Morphological classification of dwarf galaxies into early and late type, though can account for some of their origin and characteristics but does not help to study their formation mechanism. So an objective classification using Principal Component analysis together with K means Cluster Analysis of these dwarf galaxies and their globular clusters is carried out to overcome this problem. It is found that the classification of dwarf galaxies in the Local Volume is irrespective of their morphological indices. The more massive (MV 0 < -13.7) galaxies evolve through self-enrichment and harbor dynamically less evolved younger globular clusters (GCs) whereas fainter galaxies (MV 0 > -13.7) are influenced by their environment in the star formation process.
22 pages, 10 figures, 5 tables, published in ApJ
References in corpus (14)
- Virgo cluster early-type dwarf galaxies with the Sloan Digital Sky Survey. III. Subpopulations: distributions, shapes, origins
- Associations of Dwarf Galaxies
- Globular Cluster Systems in Nearby Dwarf Galaxies: III. Formation Efficiencies of Old Globular Clusters
- Scaling Relations and the Fundamental Line of the Local Group Dwarf Galaxies
- Chemical Abundances and Kinematics in Globular Clusters and Local Group Dwarf Galaxies and Their Implications for Formation Theories of the Galactic Halo
- Photometric properties of Local Volume dwarf galaxies
- The Different Environmental Dependencies of Star-formation for Giant and Dwarf Galaxies
- Scl-dE1 GC1: An Extended Globular Cluster in a Low-Luminosity Dwarf Elliptical Galaxy
- Keck spectroscopy of the faint dwarf elliptical galaxy population in the Perseus Cluster core: mixed stellar populations and a flat luminosity function
- VLT Spectroscopy of Globular Clusters in Low Surface Brightness Dwarf Galaxies
- Study of NGC 5128 Globular Clusters Under Multivariate Statistical Paradigm
- Towards a Phylogenetic Analysis of Galaxy Evolution : a Case Study with the Dwarf Galaxies of the Local Group
- Globular Clusters and Dwarf Spheroidal Galaxies
- The Luminosity Distribution of Globular Clusters in Dwarf Galaxies