Do galactic bars drive the formation of inner/outer rings and spiral arms?

Bibcode
2020sea..confE..32D
Díaz García, S.; Salo, H.; Knapen, J. H.; Herrera-Endoqui, M.
Bibliographical reference

Contributions to the XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society

Advertised on:
7
2020
Number of authors
4
IAC number of authors
2
Citations
0
Refereed citations
0
Description
We study the pitch angles of spiral arms and the frequency and dimensions of inner and outer rings as a function of disk parameters and the amplitude of non-axisymmetries in the S4G survey. We provide observational evidence for i) the role of strong bars in ring formation/evolution and ii) the dependence between bar and spiral strengths. Yet, the coupling of rings, spiral arms, and bars is not as robust as predicted by simulations.
Type
Non-refereed

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