Open AccessKinematic analysis of N -body galaxy models with barlenses
Author(s) -
Daria A. Zakharova,
Iliya S. Tikhonenko,
Anton A. Smirnov,
N. Ya. Sotnikova
Publication year - 2022
Publication title -
astronomy at the epoch of multimessenger studies. proceedings of the vak-2021 conference, aug 23–28, 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.51194/vak2021.2022.1.1.171
Subject(s) - physics , kinematics , galaxy , spiral galaxy , projection (relational algebra) , astrophysics , orbit (dynamics) , group (periodic table) , line (geometry) , maxima and minima , geometry , mathematics , classical mechanics , mathematical analysis , quantum mechanics , algorithm , aerospace engineering , engineering
The relationship between the three-dimensional structure of bars and their morphology in a face-on projection is not studiedin sucient detail. In [1] and [2], we distinguished dierent orbital components of bars with barlenses in several numericalmodels. In this work, we studied the impact of these orbital components on h 3 and h 4 parameters of the line-of-sight velocitydistribution Hermitian series expansion. For a typical model with a barlens, we found that h 4 minima lie outside the barlensregion. For individual orbital groups, we obtained that a more extended bl o family contributes to the negative regions ofh 4 prole, while a more compact bl u group does not have any connection with these regions and exhibits fast rotation. Weconclude that the barlens orbital families do not contribute to the h 4 minima, which is the main kinematic signature of theB/PS bulges if the galaxy is viewed face-on.