3 papers
astro-ph.GA2018
A dynamical mechanism for the origin of nuclear rings
Mattia C. Sormani, Emanuele Sobacchi, Francesca Fragkoudi +4
We develop a dynamical theory for the origin of nuclear rings in barred galaxies. In analogy with the standard theory of accretion discs, our theory is based on shear viscous force…
astro-ph.GA2017
A theoretical explanation for the Central Molecular Zone asymmetry
Mattia C. Sormani, Robin G. Tress, Matthew Ridley +5
It has been known for more than thirty years that the distribution of molecular gas in the innermost 300 parsecs of the Milky Way, the Central Molecular Zone, is strongly asymmetri…
astro-ph.GA2017
Nuclear Spirals in the inner Milky Way
Matthew Ridley, Mattia C. Sormani, Robin G. Treß +2
We use hydrodynamical simulations to construct a new coherent picture for the gas flow in the Central Molecular Zone (CMZ), the region of our Galaxy within $R\leq 500\, \mathrm{pc}…