Varying Newton Gravitational “Constant” Cosmology

Hello, my name is Clovis de Matos, and I am with the European Space Agency in Paris, France. I collaborated with Nicolas Lori from the Algorithmic Lab at the University of Minho in Portugal on an article titled "Varying Newton Gravitational Constant Cosmology." This article has been accepted for publication in the journal Annals of Physics, which has graciously invited us to present a seminar on our findings.

You may wonder why it is important to read an article that explores the physical implications of a varying Newton's gravitational constant in astrophysics and cosmology. Traditionally, Newton's gravitational constant has been regarded as a fixed value since Newton's formulation of the law of universal gravitation. However, our research challenges this notion.

In this presentation, I will outline our key arguments supporting the concept of a varying gravitational constant and discuss its potential implications for black hole physics and the standard cosmological model. We hope this overview will encourage you to explore our article further. The accompanying image features one of the oldest and most distant black holes observed by the James Webb Space Telescope.