Is the late buckling stage inevitable in the bar life?

Наталья Яковлевна Сотникова, Антон Александрович Смирнов

Research output: Contribution to journalArticleResearchpeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)1900-1905
Number of pages6
JournalMonthly Notices of the Royal Astronomical Society
Volume485
Issue number2
DOIs
StatePublished - 2019

Keywords

    Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Сотникова, Наталья Яковлевна ; Смирнов, Антон Александрович. / Is the late buckling stage inevitable in the bar life?. In: Monthly Notices of the Royal Astronomical Society. 2019 ; Vol. 485, No. 2. pp. 1900-1905.
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    title = "Is the late buckling stage inevitable in the bar life?",
    abstract = "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.",
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    author = "Сотникова, {Наталья Яковлевна} and Смирнов, {Антон Александрович}",
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    Is the late buckling stage inevitable in the bar life? / Сотникова, Наталья Яковлевна; Смирнов, Антон Александрович.

    In: Monthly Notices of the Royal Astronomical Society, Vol. 485, No. 2, 2019, p. 1900-1905.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Is the late buckling stage inevitable in the bar life?

    AU - Сотникова, Наталья Яковлевна

    AU - Смирнов, Антон Александрович

    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

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    JF - Monthly Notices of the Royal Astronomical Society

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