A note on the Milky Way as a barred galaxy

Details A note on the Milky Way as a barred galaxy A note on the Milky Way as a barred galaxy

1998-04-22

arxiv.org/abs/astro-ph/9804223v1

Astronomy and Astrophysics

Astrophysics

Plain TeX, 8 pages, 2 postscript figures. Accepted for publication in the Proceedings of the 4th Yugoslav-Romanian Astronomica

Scientific paper

We review recent research on the Milky Way galaxy and try to investigate whether its shape is similar to other barred galaxies. The emphasis is given on microlensing research because this method can be useful in determining the shape of the Galaxy with the minimal set of assumptions. By analyzing plots of the microlensing optical depth, $\tau$ as a function of galactic coordinates for different values of the axis ratio, $q$ of the galactic halo, we have shown that observations are best described by a flattened halo with $0.2 ^<_\sim q ^<_\sim 0.6$.

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