cnfranco / h0tensionplot

H_0 Tension: Demonstration of Measures and Tensions

This repository contains a Jupyter Notebook demonstrating the tension in determining the Hubble constant, H_0, using the main available measurements.

Description

The Hubble constant, H_0, is a fundamental measure of the rate of expansion of the universe. However, different measurement methods have produced discrepant values, leading to a "tension" between these measures. This notebook explores this tension by visualizing the results of the main H_0 measurements and comparing them.

Content

Jupyter Notebook: The H0_Tension.ipynb file contains the Python code to load the H_0 measurements data, create graphs, and perform comparative analyses.

Requirements

Pandas Matplotlib

Graphs

The notebook includes two main graphs:

Graph 1 -

H_0 Measurements: This graph shows the different H_0 measurements and their uncertainties, including measurements based on cosmic microwave background radiation (CMB), type Ia supernovae (SN), gravitational lensing (GL), among others.

Graph 2 -

H_0 Tension: This graph visualizes the tension between the different H_0 measurements, highlighting the discrepancy between them and its implication in understanding fundamental physics.

How to Use

To view and interact with the notebook, follow these steps: Clone this repository to your local environment. Ensure you have Jupyter Notebook installed. Open the terminal, navigate to the cloned repository directory, and run the command jupyter notebook. In your browser, open the H0_Tension.ipynb file. Execute the notebook cells to generate the graphs and perform additional analyses.

Contribution

Feel free to contribute improvements, corrections, or additions to this notebook. Simply open a pull request, and we'll be happy to review your contributions.