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

Abstract

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 $20^{\circ }-35^{\circ }$.

5 pages, accepted to be published in A&A

References in corpus (1)

• Evidence for a deficit of young and old stars in the Milky Way inner in-plane disc

Cited by in corpus (70)

• The Galaxy in Context: Structural, Kinematic and Integrated Properties
• Fermi-LAT Observations of the Diffuse Gamma-Ray Emission: Implications for Cosmic Rays and the Interstellar Medium
• Gaia Data Release 2: Mapping the Milky Way disc kinematics
• Mapping the Three-Dimensional Density of the Galactic Bulge with VVV Red Clump Stars
• Dynamical modelling of the Galactic bulge and bar: the Milky Way's bar pattern speed, stellar, and dark matter mass distribution
• The Structure of the Milky Way's Bar Outside the Bulge
• ARGOS III: Stellar Populations in the Galactic Bulge of the Milky Way
• The 511 keV emission from positron annihilation in the Galaxy
• Stellar populations in the Milky Way bulge region : Towards solving the Galactic bulge and bar shapes using 2MASS data
• The black hole mass -- stellar velocity dispersion correlation: bulges versus pseudobulges
• The origin of the split red clump in the Galactic bulge of the Milky Way
• Made-to-Measure models of the Galactic Box/Peanut bulge: stellar and total mass in the bulge region
• Gas flow models in the Milky Way embedded bars
• The Gaia-ESO Survey: metallicity and kinematic trends in the Milky Way bulge
• Stellar populations in the Galactic bulge
• A sharper view of Pal 5's tails: Discovery of stream perturbations with a novel non-parametric technique
• Do most planetary nebulae derive from binaries? I Population synthesis model of the galactic planetary nebula population produced by singlestars and binaries
• Tracing the long bar with red-clump giants
• Unifying boxy bulge and planar long bar in the Milky Way
• The Long Bar in the Milky Way. Corroboration of an old hypothesis
• High-Energy Gamma Rays from the Milky Way: Three-Dimensional Spatial Models for the Cosmic-Ray and Radiation Field Densities in the Interstellar Medium
• Reddening and metallicity maps of the Milky Way bulge from VVV and 2MASS III. The first global photometric metallicity map of the Galactic bulge
• The long Galactic bar as seen by UKIDSS Galactic Plane Survey
• How Many Components? Quantifying the Complexity of the Metallicity Distribution in the Milky Way Bulge with APOGEE
• Positron annihilation spectrum from the Galactic Centre region observed by SPI/INTEGRAL, revisited: annihilation in a cooling ISM?
• The Millennium Galaxy Catalogue: The local supermassive black hole mass function in early- and late-type galaxies
• The inner Galactic bulge: evidence for a nuclear bar?
• Chemodynamical Modelling of the Galactic Bulge and Bar
• Shepherding Tidal Debris with the Galactic Bar: The Ophiuchus Stream
• Young stars in an old bulge: a natural outcome of internal evolution in the Milky Way
• Metallicity gradients through disk Instability: A simple model for the Milky Way's boxy bulge
• Clues to the Metallicity Distribution in the Galactic Bulge: Abundances in OGLE-2007_BLG-349S
• Escapees from the bar resonances. On the presence of low-eccentricity, metal-rich stars at the Solar vicinity
• Modeling the Milky Way as a Dry Galaxy
• Stellar Disruption of Axion Miniclusters in the Milky Way
• N-body simulation insights into the X-shaped bulge of the Milky Way: Kinematics and distance to the Galactic Centre
• Modelling the inner disc of the Milky Way with manifolds. I - A first step
• Distance to the Sagittarius Dwarf Galaxy using MACHO Project RR Lyrae stars
• Probing the Galaxy's bars via the Hercules stream
• A Galaxy Model from 2MASS Star Counts in the Whole Sky Including the Plane
• Quantifying the (X/peanut)-shaped Structure of the Milky Way - New Constraints on the Bar Geometry
• New insight on the origin of the double red clump in the Milky Way bulge
• Kinematics of RR Lyrae stars in the Galactic bulge with OGLE-IV and Gaia DR2
• The disc origin of the Milky Way bulge: On the necessity of the thick disc
• Analysis of galaxy kinematics based on Cepheids from the Gaia DR2 Catalogue
• Absence of an X-shaped Structure in the Milky Way Bulge Using Mira Variable Stars
• The chemistry of stars in the bar of the Milky Way
• Chemodynamical signatures of bar resonances in the Galactic disk: current data and future prospects
• The long bar as seen by the VVV Survey: II. Star counts
• A case against an X-shaped structure in the Milky Way young bulge
• Metallicity distribution of red giants in the Inner Galaxy from Near Infrared spectra
• The intrinsic shape of galaxy bulges
• Signatures of the Galactic bar on stellar kinematics unveiled by APOGEE
• Double X/Peanut Structures in Barred Galaxies -- Insights from an $N$--body Simulation
• Hercules and Wolf 630 Stellar Streams and Galactic Bar Kinematics
• Discovery of Two Galaxies Deeply Embedded in the Great Attractor Wall
• Distribution of red clump stars does not support the X-shaped Galactic bulge
• A new look at the kinematics of the bulge from an N-body model
• Three-dimensional decomposition of galaxies with bulge and long bar
• Microlensing Optical Depth Revisited with Recent Star Counts
• Dynamical evolution of two associated galactic bars
• The Galactic Bar
• Analysing the structure of the bulge with Mira variables
• The disc origin of the Milky Way bulge: On the high velocity dispersion of metal-rich stars at low latitude
• Signatures of the Galactic bar in high-order moments of proper motions measured by Gaia
• On the claimed X-shaped structure in the Milky Way bulge
• Relation of internal attenuation, dust emission, and the size of spiral galaxies. Calibration at low-z and how to use it as a cosmological test at high-z
• Blanco DECam Bulge Survey (BDBS) IV: Metallicity Distributions and Bulge Structure from 2.6 Million Red Clump Stars
• The Two-infall Model Revisited: Constraints on Milky Way Bulge Assembly from >30,000 Galactic Chemical Evolution Models and Machine Learning
• Insights into the structure and kinematics of a Milky Way-like galaxy