Study the Correlations of the Properties of the Host Galaxy Based on a Sample of Spitzer/IRAS Spiral Galaxies

Abstract

A sample of 40 Spitzer/IRAS (3.6µm) spiralgalaxies were selected. This sample consisted of ranging of Hubble types from Sa to Sc to discovernew correlations.
The total mass (Mtotal) of the stellar associated with the subhalo were used, which it find directly from the simulation outputs.
We used a large sample of accurate estimates of host galaxy velocity dispersions (?*) coupled with libraries of the total mass of thestellar (Mtotal), total mass ofhalo (Mhalo), and mass of dark matter (MDM), of the host galaxies.
We explored correlations between the spheroid velocity dispersion (?*) and mass of the total stellar (Mtotal) (?*-Mtotal), mass of dark matter (MDM) (?*-MDM) and, mass of total halo (Mhalo) (?*-Mhalo) of host galaxies.