Martin Lopez-Corredoira
Published 2017-02-08Version 1
The stellar density distribution of the bulge is analyzed through one of its tracers. We use oxygen-rich Miras variables from the Catchpole et al. (2016) survey and OGLE-III survey as standard candles. The average age of these stars is around 9 Gyr. The population traced by Mira variables matches a boxy bulge prediction, not an X-shaped one, because only one peak is observed in the density along the analyzed lines of sight, whereas the prediction of an X-shape gives two clear peaks.
Comments: 5 pages, accepted for publication in ApJ
Common Origin of Two RR Lyrae Populations and the Double Red Clump in the Milky Way Bulge
The disc origin of the Milky Way bulge: II. Dissecting the chemo-morphological relations using N-body simulations and APOGEE
A three-dimensional map of the Milky Way using 66,000 Mira variable stars
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