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1996•Symposium - International Astronomical UnionOpen access

The Structural Parameters of the Milky Way

R. Buser, Jianxiang Rong

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Abstract

A new homogeneous catalog of photographic RGU star count and three-color data in seven high-galactic latitude fields has been used to determine the structural parameter values from a large number of multi-component population models of the Galaxy. The data provide strong evidence of a prominent thick disk component coexisting with a canonical thin disk and a low-density spheroidal halo.

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A new homogeneous catalog of photographic RGU star count and three-color data in seven high-galactic latitude fields has been used to determine the structural parameter values from a large number of multi-component population models of the Galaxy. The data provide strong evidence of a prominent thick disk component coexisting with a canonical thin disk and a low-density spheroidal halo.

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Available abstract

A new homogeneous catalog of photographic RGU star count and three-color data in seven high-galactic latitude fields has been used to determine the structural parameter values from a large number of multi-component population models of the Galaxy. The data provide strong evidence of a prominent thick disk component coexisting with a canonical thin disk and a low-density spheroidal halo.

Key concepts: Milky Way, Star count, Halo, Astrophysics, Galaxy, Homogeneous, Component (thermodynamics), Physics

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