The second-order terms for the deflection of light around a large, spherical and charged black hole are derived from the Reissner-Nordström metric using the Lindstedt-Poincaré method to solve the equation of motion…

# Tag: black hole

## Negative Weight Modular Forms and Black Hole Entropy: Logarithmic Corrections

We present a method of finding logarithmic corrections, up to an arbitrary order, of different quantities, such as black hole entropy in extreme CFT, or the entropy of p-branes compactified on a…

## Investigation on the Consequences of a Strengthened Newtonian Gravity at Short Distances

In the middle ages, especially in astronomy and mechanics, the construction of the theory of movement of the solar planet system was a triumph of science. The confrontation that lasted for centuries…

## Physics Essay: Observation on Six Baseless and Irrational Problems in Modern Cosmology

Analyzes the Big Bang theory, recession of galaxies, Hubble’s law, multi-dimensional space, curved space and a black hole in modern cosmology and points out that these six theories are all baseless and…

## Approximate Inertial Coordinate System Selections for Rotation Problems: The Gravitational Field of the Celestial Body Higher than the Object being Rotated: An Observational Study

Selection of the coordinate system is essential for rotation problems. Otherwise, mistakes may occur due to inaccurate measurement of angular speed. Approximate inertial coordinate system selections for rotation problems should be the…

## The Secular Increase of Astronomical Unit due to the Loss of the Solar Mass: Scientific Explanation

AccordAccording to our published articles [1,2], this article is to further derive the relationships between the inward / outward speed, the central mass, the radius and the cross-radial velocity of a gravitationally…

## The Inward / Outward Speed Relationship between Gravitationally Bound Points: Critical Study

In this article: using our conclusions from the first article, we derive / discuss the theoretical dynamic (variable central mass systems) expressions / properties of gravitationally-bound points in single or multiple systems…