EDP Sciences
Free Access
Volume 439, Number 1, August III 2005
Page(s) 107 - 110
Section Galactic structure, stellar clusters and populations
DOI https://doi.org/10.1051/0004-6361:20053075

A&A 439, 107-110 (2005)
DOI: 10.1051/0004-6361:20053075

A boxy bulge in the Milky Way. Inversion of the stellar statistics equation with 2MASS data

M. López-Corredoira1, 2, A. Cabrera-Lavers1 and O. E. Gerhard2

1  Instituto de Astrofísica de Canarias, C/.vía Láctea, s/n, 38200 La Laguna (S/C de Tenerife), Spain
    e-mail: [martinlc;acabrera]@iac.es
2  Astronomisches Institut der Universität Basel, Venusstrasse 7, 4102 Binningen, Switzerland

(Received 27 January 2004 / Accepted 31 March 2005 )

Inverting the stellar statistics equation from 2MASS star counts, we obtain the 3D density distribution of the Galactic bulge as well as its luminosity function in the K-band. This results in a boxy bulge with axial ratios 1:0.5:0.4 and a major axis angle with respect to the Sun-galactic center of $20^\circ{-}35^\circ $.

Key words: Galaxy: structure -- infrared: stars

SIMBAD Objects

© ESO 2005

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.