Research output: Contribution to journal › Article › peer-review
Is the late buckling stage inevitable in the bar life? / Smirnov, Anton A. ; Sotnikova, Natalia Ya. .
In: Monthly Notices of the Royal Astronomical Society, Vol. 485, No. 2, 2019, p. 1900-1905.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Is the late buckling stage inevitable in the bar life?
AU - Smirnov, Anton A.
AU - Sotnikova, Natalia Ya.
PY - 2019
Y1 - 2019
N2 - By means of self-consistent numerical simulations we investigated the dynamical impact of classical bulges on the growth of the secondary buckling of a bar. Overall we considered 14 models with different disc and bulge parameters. We obtained that a bulge with a quite modest mass B/D = 0.1 leads to completely symmetrical evolution of the bar almost independently of the initial stellar disc parameters and even can damp the first bending. At the same time, the bars in all our bulgeless models suffer from the short primary and prolonged secondary buckling. Given the smallness of the mass suppressing secondary buckling, we conclude that a classical bulge along with the gas central concentration may be the main culprits for the rarity of bars with ongoing buckling in the local Universe.
AB - By means of self-consistent numerical simulations we investigated the dynamical impact of classical bulges on the growth of the secondary buckling of a bar. Overall we considered 14 models with different disc and bulge parameters. We obtained that a bulge with a quite modest mass B/D = 0.1 leads to completely symmetrical evolution of the bar almost independently of the initial stellar disc parameters and even can damp the first bending. At the same time, the bars in all our bulgeless models suffer from the short primary and prolonged secondary buckling. Given the smallness of the mass suppressing secondary buckling, we conclude that a classical bulge along with the gas central concentration may be the main culprits for the rarity of bars with ongoing buckling in the local Universe.
KW - galaxies: bulges, galaxies: evolution, galaxies: fundamental parameters, galaxies: general, galaxies: kinematics and dynamics, galaxies: structure
KW - Galaxies: bulges
KW - Galaxies: evolution
KW - Galaxies: fundamental parameters
KW - Galaxies: general
KW - Galaxies: kinematics and dynamics
KW - Galaxies: structure
UR - http://www.scopus.com/inward/record.url?scp=85062837111&partnerID=8YFLogxK
U2 - https://doi.org/10.1093/mnras/stz546
DO - https://doi.org/10.1093/mnras/stz546
M3 - Article
VL - 485
SP - 1900
EP - 1905
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 2
ER -
ID: 39419898