SIMBAD references

2014A&A...571A..98C - Astronomy and Astrophysics, volume 571A98-98 (2014/11-1)

Three-dimensional decomposition of galaxies with bulge and long bar.

COMPERE P., LOPEZ-CORREDOIRA M. and GARZON F.

Abstract (from CDS):

Some observations indicate that the Milky Way has two inner components, a bulge and a long bar, which present a misalignment of Δα≃20° that is against the predictions of some theoretical models that are based on numerical simulations. We wish to determine whether this misalignment between the bar and the bulge can be observed in barred galaxies other than the Milky Way. Each galaxy of our sample was decomposed based on its Ks-band 2MASS image by fitting and modelling in a three-dimensional (3D) space the following components: a disc, a bar, and a bulge. The χ2 goodness-of-fit estimation allowed retrieving the best-fit angle values for the bar and the bulge to detect any misalignment. From the 3D decomposition of six barred galaxies, we have detected at least three galaxies (NGC 2217, NGC 3992, and NGC 4593) that present a significant misalignment between the bar and the bulge of Δα> 20°.

Abstract Copyright: ∼

Journal keyword(s): galaxies: structure - galaxies: bulges - galaxies: fundamental parameters - Galaxy: structure

Simbad objects: 14

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2014A&A...571A..98C and select 'bookmark this link' or equivalent in the popup menu