The Long Bar in the Milky Way. Corroboration of an Old Hypothesis

Lopez-Corredoira, M.; Cabrera-Lavers, A.; Mahoney, T. J.; Garzon, F.; Hammersley, P. L.; González-Fernández, C.
Bibliographical reference

Exploiting Large Surveys for Galactic Astronomy, 26th meeting of the IAU, Joint Discussion 13, 22-23 August 2006, Prague, Czech Republic, JD13, #22

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8
2006
Number of authors
6
IAC number of authors
0
Citations
0
Refereed citations
0
Description
Recent GLIMPSE data analysed by Benjamin et al. (2005) have further confirmed the hypothesis of the existence of an in-plane long bar that is different from the bulge of the Milky Way with the same characteristics that were emphasized some years ago by our team. In this contribution, we briefly discuss the published literature on the topic and argue that the various datasets agree with our previously predicted scenario. First, we describe the available literature on the long bar. Second, new data on the distance of the long bar using with the red clump method are compiled and compared with our model of the long bar. A long bar with a radius around 4 kpc and a position angle of approximately 43 deg., as proposed by Hammersley et al. (2000), produces notable agreement with the red clump data and with the literature on the central in-plane regions of our Galaxy.