| Issue |
A&A
Volume 373, Number 3, July III 2001
|
|
|---|---|---|
| Page(s) | 786 - 795 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20010557 | |
| Published online | 15 July 2001 | |
An hydrodynamical model of the barred galaxy NGC 5850
1
Instituto de Astrofisica de Canarias, 38200 La Laguna, Tenerife, Spain
2
Astronomisches Institut der Universitat Basel, Venusstrasse 7, 4102 Binningen, Switzerland
3
Department of Astronomy, University of Florida, Gainesville, FL 32611-2055, USA
Corresponding author: J. A. L. Aguerri, jalfonso@astro.unibas.ch
Received:
5
February
2001
Accepted:
28
March
2001
We present the results of hydrodynamical model calculations of the barred galaxy
NGC 5850 and compare to HI observations. The models assume a mass distribution for
the galaxy which was obtained from photometrical I band observations. A pure bar
perturbation model reproduces the HI observations in the inner 80'' of the galaxy.
The reproduced morphological features are: the central gas concentration, the hole of
gas in the bar region and the ring of HI located at the end of the bar. The spiral arms
are not reproduced. The best model has the co-rotation located at 90'' and the mass
of the bulge, bar, disk and halo are respectively: 
,
,
and 
.
Key words: galaxies: individual: NGC 5850 / galaxies: kinematics and dynamics / galaxies: photometry / galaxies: structure
© ESO, 2001
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