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Communication Dans Un Congrès Année : 2010

The Besançon Galaxy model: comparisons to photometric surveys and modelling of the Galactic bulge and disc

Résumé

Exploring the in-plane region of our Galaxy is an interesting but challenging quest, because of the complex structure and the highly variable extinction. We here analyse photometric near-infrared data using the Besançon Galaxy Model in order to investigate the shape of the disc and bulge. We present new constraints on the stellar disc, which is shown to be asymmetric, and on the bulge, which is found to contain two populations. We present how the Galaxy model is used in the framework of the preparation of the Gaia mission.

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Dates et versions

hal-00579858 , version 1 (25-03-2011)

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  • HAL Id : hal-00579858 , version 1

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C. Reylé, A. C. Robin, M. Schultheis, D. J. Marshall. The Besançon Galaxy model: comparisons to photometric surveys and modelling of the Galactic bulge and disc. The Besançon Galaxy model: comparisons to photometric surveys and modelling of the Galactic bulge and disc, Dec 2010, Marseille, France. pp.51. ⟨hal-00579858⟩
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