GalRotpy: an educational tool to understand and parametrize the rotation curve and gravitational potential of disk-like galaxies
arXiv:1705.01665 · doi:10.1016/j.newast.2020.101456
Abstract
\textbf{GalRotpy} is an educational \verb+Python3+-based visual tool, which is useful to undestand how is the contribution of each mass component to the gravitational potential of disc-like galaxies by means of their rotation curve. Besides, \textbf{GalRotpy} allows the user to perform a parametric fit of a given rotation curve, which relies on a MCMC procedure implemented by using \verb+emcee+ package. Here the gravitational potential of disc-like galaxies is built from the contribution of a Miyamoto-Nagai potential model for the bulge/core and the thin/thick disc, an exponential disc, together with the NFW (Navarro-Frenk- White) potential or the Burkert (cored density profile) potential for the Dark Matter halo, where each contribution is implemented by using \verb+galpy+ package. We summarize the properties of each contribution to the rotation curve involved, and then describe how \textbf{GalRotpy} is implemented along with its capabilities. Finally we present the characterization of two galaxies, NGC6361 and M33, and show that the results for M33 provided by \textbf{GalRotpy} are consistent with those found in the literature.
arXiv commentSuggestions and comments are welcome
References in corpus (18)
- emcee: The MCMC Hammer
- Planck 2015 results. XIII. Cosmological parameters
- A Universal Density Profile from Hierarchical Clustering
- Statistical Properties of X-ray Clusters: Analytic and Numerical Comparisons
- galpy: A Python Library for Galactic Dynamics
- The Structure of Dark Matter Haloes in Dwarf Galaxies
- Rotation Curves of Spiral Galaxies
- Dark Matter Scaling Relations
- CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second public data release
- The mass distribution in early-type disk galaxies: declining rotation curves and correlations with optical properties
- The universal rotation curve of dwarf disk galaxies
- Dark halo properties from rotation curves
- The Most Completely Sampled Rotation Curves for Galaxies
- Dynamical signatures of a LCDM-halo and the distribution of the baryons in M33
- A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations
- Rotation Curve Decomposition for Size-Mass Relations of Bulge, Disk, and Dark Halo in Spiral Galaxies
- The radial dependence of dark matter distribution in M33
- Dark Matter Halo Mass Profiles
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- Mass reconstruction in disc like galaxies using strong lensing and rotation curves: The Gallenspy package