NAVanalysis

Normalized Additional Velocity analysis

Code by Davi Rodrigues (UFES) and Alejandro Hernandez-Arboleda (UFES).

The corresponding paper

This code shows in detail all the necessary technical procedures of the following paper:

Normalized Additional Velocity: a fast sample analysis for dark matter or modified gravity models

A.Hernandez-Arboleda, D.C. Rodrigues, A.Wojnar

arXiv: 2204.03762

If you use this code, or part of it, please cite the paper above.

All the methods are explained in the above paper.

Files and folders explanation

• NAVanalysis.nb is a Mathematica Notebook and it is the main file.
• NAVanalysis.m is automatically generated from the nb file above. It contains all the code in plain text format, it can be run outside Mathematica.
• NAVbaseCode.wl contains several essential definitions for the execution of NAVanalysis.
• NAVoptions.wl is a set of options mainly devoted for the plots.
• The root of AxiliaryData folder contains large tables that include the best fit results generated by MAGMA for 153 SPARC galaxies.
• The AxiliaryData folder also contains the folder SPARC_Rotmod, in which data from the SPARC galaxies was inserted. We are providing these data for easy use of NAVanalysis. The original data can be found here, these data DO NOT CONSTITUTE a part of NAVanalysis.
• The Output folder contains files that were generated and exported by NAVanalsis.

Other packages

• Some of the plots require the CustomTicks package, it can be freely used.
• MAGMA is helpful to generate new galaxy fit results, but it is not necessary to run NAVanalysis: the relevant MAGMA output is already in the AuxiliaryData folder.

Acknowledgements

This work was in part supported by the following Brazilian funding agencies: CAPES, CNPq and FAPES.