EDP Sciences
Free access

This article has an erratum: [erratum]

Issue
A&A
Volume 409, Number 2, October II 2003
Page(s) 523 - 540
Section Stellar clusters and associations
DOI http://dx.doi.org/10.1051/0004-6361:20031117


A&A 409, 523-540 (2003)
DOI: 10.1051/0004-6361:20031117

A synthetic view on structure and evolution of the Milky Way

A. C. Robin1, C. Reylé1, S. Derrière2 and S. Picaud1

1  CNRS UMR6091, Observatoire de Besançon, BP 1615, 25010 Besançon Cedex, France
    e-mail: annie.robin@obs-besancon.fr,celine@obs-besancon.fr,picaud@obs-besancon.fr
2  CNRS UMR7550, Observatoire de Strasbourg, 11 rue de l'Université, 67000 Strasbourg, France
    e-mail: derriere@astro.u-strasbg.fr

(Received 14 October 2002 / Accepted 11 July 2003)

Abstract
Since the Hipparcos mission and recent large scale surveys in the optical and the near-infrared, new constraints have been obtained on the structure and evolution history of the Milky Way. The population synthesis approach is a useful tool to interpret such data sets and to test scenarios of evolution of the Galaxy. We present here new constraints on evolution parameters obtained from the Besançon model of population synthesis and analysis of optical and near-infrared star counts. The Galactic potential is computed self-consistently, in agreement with Hipparcos results and the observed rotation curve. Constraints are posed on the outer bulge structure, the warped and flared disc, the thick disc and the spheroid populations. The model is tuned to produce reliable predictions in the visible and the near-infrared in wide photometric bands from U to K. Finally, we describe applications such as photometric and astrometric simulations and a new classification tool based on a Bayesian probability estimator, which could be used in the framework of Virtual Observatories. As examples, samples of simulated star counts at different wavelengths and directions are also given.


Key words: Galaxy: stellar content -- Galaxy: general -- Galaxy: evolution -- Galaxy: kinematics and dynamics -- Galaxy: structure

Offprint request: A. C. Robin, robin@obs-besancon.fr

SIMBAD Objects



© ESO 2003

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.