Dark matter halos of barred disk galaxies

Abstract

We use a large volume-limited sample of disk galaxies drawn from the Sloan Digital Sky Survey Data Release 7 to study the dependence of the bar fraction on the stellar-to-halo mass ratio, making use of a group catalog, we identify central and satellite galaxies in our sample. For the central galaxies in the sample we estimate the stellar-to-halo mass ratio (M${}_{\ast }/$M${}_{\mathrm{h}}$) and find that the fraction of barred galaxies is a strong function of this ratio, especially for the case of strong bars. Bars are more common in galaxies with high M${}_{\ast }/$M${}_{\mathrm{h}}$ values, as expected from early theoretical works that showed that systems with massive dark matter halos are more stable against bar instabilities. We find that the change of the bar fraction with M${}_{\mathrm{h}}$ and M${}_{\ast }$ is stronger if we consider a relation with the form $f_{\mathrm{bar}}=f_{\mathrm{bar}}$(M${}_{\ast }^{\alpha }/$M${}_{\mathrm{h}}$) with $\alpha =1.5$, and that the bar fraction is largely independent of other physical properties such as color and spin parameter when M${}_{\ast }^{3/2}/$M${}_{\mathrm{h}}$ is fixed. With our sample of galaxies segregated into centrals and satellites, we also compare the fraction of barred galaxies in each group, finding a slightly higher bar fraction for satellites when compared with centrals at fixed stellar mass, but at fixed color this difference becomes very weak. This result, in agreement with previous studies, confirms that the bar fraction does not directly depend on the group/cluster environment, but the dependence exists through its dependence on internal morphology.

9 pages, 6 figures. Matches published version

References in corpus (10)

• Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
• The population of barred galaxies in the local universe I. Detection and characterisation of bars
• Bars in Disk-Dominated and Bulge-Dominated Galaxies at z~0: New Insights from ~3600 SDSS Galaxies
• Properties of Bars and Bulges in the Hubble Sequence
• The Correlation of Star Formation Quenching with Internal Galaxy Properties and Environment
• Quantifying the role of bars in the build-up of central mass concentrations in disk galaxies
• Dark Matter Halos of Disk Galaxies: Constraints from the Tully-Fisher Relation
• The origin of pseudobulges in cosmological simulations of galaxy formation
• Central and Satellite Colors in Galaxy Groups: A Comparison of the Halo Model and SDSS Group Catalogs
• The environment of barred galaxies in the low-redshift Universe

Cited by in corpus (6)

• Stellar mass distribution of S${}^4$G disk galaxies and signatures of bar-induced secular evolution
• Stellar, gas and dark matter content of barred galaxies
• The build-up of pseudobulges in a hierarchical universe
• Morphology driven evolution of barred galaxies in OMEGAWINGS Clusters
• Do Low Surface Brightness galaxies host stellar bars?
• Disc instability and bar formation: view from the IllustrisTNG simulations