The Gravitational Potential of the Milky Way: A dynamical model for orbit calculations based on the Besancon galaxy model

GravPot16 is a code that performs a variety of analysis. The typical use of GravPot16 is to compute orbital parameters and test particle simulations in an axisymmteric and/or nonaxisymetric gravitational potential, including a boxy bar.

This documentation serves as a guide and a reference. Feel free to send comments and remarks to the authors to help us improve the documentation and the package. GravPot16 package: Its main purpose is to model the gravitational potential of the Milky Way based on the density distributions of the Besancon Galaxy model. This package functionality is two-fold : (i) To provide a detailed Milky Way axisymmetric and nonaxisymmetric potential, observationally and dynamically constrained; (ii) Provide test particle simulations to improve the kinematics of the Besancon Galaxy model.

You can alternatively use the GravPot16 Web Simulator which allows to compute orbits using a MCMC approach.

IMPORTANT: The full documentation for the code is under construction. Until the release of V.1, this documentation will be in various stages of incompleteness. The code is fully functional, if you want to use it, please contact me (jfernandez@obs-besancon.fr, jfernandezt87@gmail.com) to discuss the applicability to your case.

Figure 3: Projection of the orbit of 2M16011638-1201525 onto the X'-Y' plane (non-inertial galactic frame), a peculiar metal-poor star discovery by APOGEE (2016arXiv160401279F). We refer the reader to that paper for further details. Figure 4: Projection of the orbit of 2M16011638-1201525 onto the R'-Z' plane(non- inertial galactic frame).
Figure 1: 3D test particle simulations of the Galactic disk in an inertial galactic frame. For a more detailed discussion, we refer the readers to a forthcoming paper (Fernández-Trincado et al. 2016, in preparation).
Figure 2: 3D test particle simulations of the Galactic disk in an non-inertial galactic frame. For a more detailed discussion, we refer the readers to a forthcoming paper (Fernández-Trincado et al. 2016, in preparation).