Multiarm spirals on the periphery of disc galaxies

Spiral patterns in some disc galaxies have two arms in the centre, and three or more arms on the periphery. The same result is also obtained in numerical simulations of stellar and gaseous discs.We argue that such patterns may occur due to fast cooling of the gas, resulting in formation of giant mol...

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Bibliographic Details
Main Authors: Lubov Spiegel, Evgeny Polyachenko
Format: Article
Language:English
Published: De Gruyter 2018-04-01
Series:Open Astronomy
Subjects:
Online Access:https://doi.org/10.1515/astro-2018-0003