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A dynamical model for the spiral galaxy NGC 3359
| Content Provider | Paperity |
|---|---|
| Author | Rozas, M. |
| Abstract | In this work we have determined a dynamical model for NGC 3359. This is a strongly barred spiral galaxy with a complex structure, within which we can see an annular zone of intense star formation. In this work we present self consistent numerical simulations of molecular gas in NGC 3359; and using the potential derived from an I band image, we attempt to find the parameters responsible for the kinematics and morphology of the observed gas. The best results are obtained for a two pattern speed model: the central region (up to 15) corresponding to the nuclear bar which rotates with a Ωs=100 km s-1 kpc-1; and the main bar + outer spiral, decoupled from the nuclear region, which rotates with a angular velocity, Ωp = 27 km s-1 kpc-1. The model successfully reproduces the complex structure in Hα of the galaxy in the internal 20 zone, which cannot really be explained with a unique mode pattern.Keywords : galaxies: individual (NGC 3359); galaxies: kinematics and dynamics; galaxies: spiral. |
| Starting Page | 71 |
| Ending Page | 83 |
| File Format | HTM / HTML |
| ISSN | 01851101 |
| Issue Number | 1 |
| Journal | Revista mexicana de astronomía y astrofísica |
| Volume Number | 44 |
| Language | English Spanish |
| Publisher Date | 2008-01-01 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
