## Black hole thermodynamics - Lecture 4

This is the fourth of a mini-course (four lectures) on black hole thermodynamics. The lectures will be on January 16, 24, 31 and February 6.

The group's research on strong gravity involves finding analytical and numerical solutions of Einstein's theory of general relativity, and many of its extensions, either in vacuum or coupled to various types of matter. For our latest developments/activities in this area, please see the listing at the end of this article.

The prime examples of (relativistic) strong gravitational systems are Black Holes. They are truly unifying objects of all physics. The understanding of their formation and dynamics requires the laws of all four fundamental forces, and their physics is relevant not only for astrophysics and cosmology but for a variety of topics within high energy physics.

See here a movie made by the COST action `Black holes in a violent universe', in which our group participates, for a visual overview of different types of black holes.

Speaker

Eugen Radu

Event date

Venue

Maths. Dept. Room Sousa Pinto

Event type

This is the fourth of a mini-course (four lectures) on black hole thermodynamics. The lectures will be on January 16, 24, 31 and February 6.

Speaker

Rodrigo Vicente - CENTRA IST

Event date

Venue

Maths. Dept. Room Sousa Pinto

Event type

We consider the interaction between a plane wave and a (counter-moving) black hole. We show that energy is transferred from the black hole to the wave, giving rise to a negative absorption cross-section.

Speaker

Eugen Radu

Event date

Venue

Maths. Dept. Room Sousa Pinto

Event type

This is the third of a mini-course (four lectures) on black hole thermodynamics. The lectures will be on January 16, 24, 31 and February 6.

Speaker

Jose Blázquez-Salcedo (Oldenburg U., Germany)

Event date

Venue

Maths. Dept. Room 11.3.21

Event type

In this talk we will discuss the quasinormal modes of neutron stars in modified theories of gravity, in particular, in R^2 gravity. In this model, in addition to the space-time and fluid degrees of freedom that are present in General Relativity, we naturally find a (massive) scalar field.

Speaker

Eugen Radu

Event date

Venue

Venue Maths. Dept. Room Sousa Pinto

Event type

This is the second of a mini-course (four lectures) on black hole thermodynamics. The lectures will be on January 16, 24, 31 and February 7.