Absence of an X-shaped Structure in the Milky Way Bulge Using Mira Variable Stars

Bibcode
2017ApJ...836..218L
DOI
10.3847/1538-4357/836/2/218
López-Corredoira, M.
Referencia bibliográfica

The Astrophysical Journal, Volume 836, Issue 2, article id. 218, 5 pp. (2017).

Fecha de publicación:
2
2017
Revista
The Astrophysical Journal
Número de autores
1
Número de autores del IAC
1
Número de citas
24
Número de citas referidas
20
Descripción
The stellar density distribution of the bulge is analyzed through one of its tracers. We use oxygen-rich Mira variables from the Catchpole et al. 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.
Proyectos relacionados
Project Image
Morfología y dinámica de la Vía Láctea
El Proyecto se estructura en dos partes, diferenciadas pero complementarias: morfología y dinámica. El estudio detallado de la morfología de la Vía Láctea pretende proveer una base de datos de distribución estelar en las regiones más alejadas y extintas de nuestra Galaxia, mediante el desarrollo de modelos semiempíricos a partir de la información
Martín
López Corredoira
En ejecución
Tipo
Con árbitro
La Vía Láctea y el Grupo Local (MWLG)

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