Giant Cyclones in Gaseous Discs of Spiral Galaxies

Details Giant Cyclones in Gaseous Discs of Spiral Galaxies Giant Cyclones in Gaseous Discs of Spiral Galaxies

2000-03-07

arxiv.org/abs/astro-ph/0003097v1

Physics Letters A,1999, v.264,p.85

Astronomy and Astrophysics

Astrophysics

13 pages, 4 EPS and 3 PS figures

Scientific paper

10.1016/S0375-9601(99)00786-0

We report detection of giant cyclonic vortices in the gaseous disc of the
spiral galaxy NGC 3631 in the reference frame rotating with the spiral pattern.
A presence of such structures was predicted by the authors for galaxies, where
the radial gradient of the perturbed velocity exceeds that of the rotational
velocity. This situation really takes place in NGC 3631.

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