EDP Sciences
Free access
Volume 373, Number 3, July III 2001
Page(s) 786 - 795
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20010557

A&A 373, 786-795 (2001)
DOI: 10.1051/0004-6361:20010557

An hydrodynamical model of the barred galaxy NGC 5850

J. A. L. Aguerri1, 2, J. H. Hunter3, M. Prieto1, A. M. Varela1, S. T. Gottesman3 and C. Muñoz-Tuñón1

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

(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: $4.7\times10^{9} M_{\odot}$, $4.6\times10^{9} M_{\odot}$, $4.9\times10^{10} M_{\odot}$ and $6.93\times10^{10} M_{\odot}$.

Key words: galaxies: individual: NGC 5850 -- galaxies: kinematics and dynamics -- galaxies: photometry -- galaxies: structure

Offprint request: J. A. L. Aguerri, jalfonso@astro.unibas.ch

SIMBAD Objects

© ESO 2001

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access.

An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account.
    In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.