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Some observations indicate that the Milky Way has two inner components, abulge and a long bar, which present a misalignment of about 20 degrees that isagainst the predictions of some theoretical models that are based on numericalsimulations. In this paper, we wish to determine whether this misalignmentbetween the bar and the bulge can be observed in barred galaxies other than theMilky Way. For that, each galaxy of our sample was decomposed based on itsKs-band 2MASS image by fitting and modelling in a three-dimensional (3D) spacethe following components: a disc, a bar, and a bulge. The chi-squaregoodness-of-fit estimation allowed retrieving the best-fit angle values for thebar and the bulge to detect any misalignment. From the 3D decomposition of sixbarred galaxies, we have detected at least three galaxies (NGC 2217, NGC 3992,and NGC 4593) that present a significant misalignment between the bar and thebulge of more than 20 degrees.

Three-dimensional decomposition of galaxies with bulge and long bar