The Long Bar in the Milky Way. Corroboration of an old hypothesis

Details The Long Bar in the Milky Way. Corroboration of an old hypothesis The Long Bar in the Milky Way. Corroboration of an old hypothesis

2006-06-08

arxiv.org/abs/astro-ph/0606201v3

Astron.J.133:154-161,2007

Astronomy and Astrophysics

Astrophysics

22 pages, 7 figures, accepted in AJ. We thank the GLIMPSE team for the re-discovery of the long bar we had found some years ag

Scientific paper

10.1086/509605

Recent GLIMPSE data have further confirmed the hypothesis of the existence of an in-plane long bar different from the bulge of the Milky Way with the same characteristics as emphasized some years ago by our team. In this paper, we present two new analyses that corroborate recent and earlier claims concerning the existence in our Galaxy of a long flat bar with approximate dimensions 7.8 kpc x 1.2 kpc x 0.2 kpc and a position angle of approximately 43 deg.: 1) star counts with 2MASS All-Sky Release and MSX data, which give an excess in the plane region along 0

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