The galactic branches as a possible evidence for transient spiral arms | Zendy

Ángeles Pérez-Villegas | Zendy; Gilberto C. Gómez | Zendy; B. Pichardo | Zendy

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The galactic branches as a possible evidence for transient spiral arms

Author(s) -

Ángeles Pérez-Villegas,

Gilberto C. Gómez,

B. Pichardo

Publication year - 2015

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/stv1157

Subject(s) - physics , spiral (railway) , spiral galaxy , milky way , magnetohydrodynamic drive , astrophysics , orbit (dynamics) , trigonometric functions , barred spiral galaxy , astronomy , classical mechanics , stars , magnetohydrodynamics , interacting galaxy , magnetic field , geometry , mathematical analysis , mathematics , dwarf galaxy , quantum mechanics , aerospace engineering , engineering

With the use of a background Milky Way-like potential model, we performed stellar orbital and magnetohydrodynamic simulations. As a first experiment, we studied the gaseous response to a bisymmetric spiral arm potential: the widely employed cosine potential model and a self-gravitating three-dimensional density distribution based model called PERLAS. Important differences are noticeable in these s...

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