129 citations · 605 across the 14 of their papers we have counts for
10 papers · 1 filter
Resonance Related Spiral Substructure in a Galactic Gaseous Disk
Miguel A. Yáñez, Michael L. Norman, Marco A. Martos +1
We use high resolution 2D hydrodynamic simulations to study the formation of spiral substructure in the gaseous disk of a galaxy. The obtained gaseous response is driven by a self-…
On the Galactic Spiral Patterns: Stellar and Gaseous
Marco Martos, Miguel Yanez, Xavier Hernandez +2
The gas response to a proposed spiral stellar pattern for our Galaxy is presented here as calculated via 2D hydrodynamic calculations utilizing the ZEUS code in the disk plane. The…
A Plausible Galactic Spiral Pattern and its Rotation Speed
M. Martos, X. Hernandez, M. Yanez +2
We report calculations of the stellar and gaseous response to a Milky Way mass distribution model including a spiral pattern with a locus as traced by K-band observations, over imp…
Models for the Gravitational Field of the Galactic Bar. An Application to Stellar Orbits in the Galactic Plane and Orbits of Some Globular Clusters
Barbara Pichardo, Marco Martos, Edmundo Moreno
We built three models for the gravitational field of the Galactic bar. These models are an inhomogeneous ellipsoid, an inhomogeneous prolate spheroid, and a superposition of four i…
Nonlinear Effects in Models of the Galaxy: 1. Midplane Stellar Orbits in the Presence of 3D Spiral Arms
Barbara Pichardo, Marco Martos, Edmundo Moreno +1
With the aim of studying the nonlinear stellar and gaseous response to the gravitational potential of a galaxy such as the Milky Way, we have modeled 3D galactic spiral arms as a s…
Detection of a Corrugated Velocity Pattern in the Spiral Galaxy NGC 5427
Emilio Alfaro, Enrique Perez, Rosa M. Gonzalez Delgado +2
Here we report the detection, in Halpha emission, of a radial corrugation in the velocity field of the spiral galaxy NGC 5427. The central velocity of the Halpha line displays cohe…