- Lectures on gravitational waves: a new messenger to explore the universe
Alicia Sintes | Abstract - Numerical Relativity
Luis Lehner | Abstract - Numerical simulations of black hole binaries with Einstein Toolkit
Tomás Andrade | Abstract
Schedule
| LUNES 13/Nov |
MARTES 14/Nov | MIÉRCOLES 15/Nov | JUEVES 16/Nov | VIERNES 17/Nov | |
| 9:00-9:20 | Inscripciones | ||||
| 9:20-9:45 | Bienvenida | ||||
| 9:45-11:00 | Taller 1: Alicia Sintes | Taller 2: Alicia Sintes | Taller 3: Alicia Sintes | Taller 4: Luis Lehner | Taller 4: Alicia Sintes |
| 11:00- 11:30 | Coffee Break | Coffee Break | Coffee Break | Coffee Break | Coffee Break |
| 11:30-12:45 | Taller 1: Luis Lehner | Taller 2: Luis Lehner | Taller 3: Luis Lehner | Taller 5: Tomás Andrade | Taller 7: Tomás Andrade |
| 12:45-14:30 | Lunch | Lunch | Fotografía grupal / Libre | Lunch | Coffee Break |
| 14:30-15:45 | Taller 1: Tomás Andrade | Taller 3: Tomás Andrade | Libre | Taller 6: Tomás Andrade | Libre |
| 15:45-16:15 | Coffee Break | Coffee Break | Libre | Coffee Break | Libre |
| 16:15-17:30 | Taller 2: Tomás Andrade | Taller 4: Tomás Andrade | Libre | Coloquio Alicia Sintes * | Libre |
| 16:30-17:30 | Coloquio Alicia Sintes * |
* Coloquio “Escuchando al Universo, últimos avances con las ondas gravitacionales”: 16:30 hrs. / Auditorio Gorbea, Beauchef 850
Courses
Lectures on gravitational waves: a new messenger to explore the universe
Alicia Sintes
The field of gravitational-wave astronomy has seen rapid and impressive progress since the first direct detection of gravitational waves in 2015; and yet the exciting journey has just begun. In the coming decades, gravitational waves will continue to expand their role as an indispensable tool for astrophysics and cosmology and advance to a primary probe of fundamental physics in the 21st century.
In these lectures we will give an introduction to the theory behind gravitational waves, a description of some gravitational-wave sources and how to model their signals. We will give an overview of ongoing and future gravitational-wave experiments, with details on how the LIGO-Virgo detectors work. Finally, we will provide a glimpse into data analysis, and we will discuss the latests results obtained by the LIGO-Virgo-KAGRA, as well as, the scientific Pulsar Timing Array (PTA) collaborations.
Numerical Relativity
Luis Lehner
The numerical solution of the equations of General Relativity has opened the doors to understand, in particular, the behavior of gravity in highly dynamical and strongly gravitating regimes (e.g. in black hole collisions). These lectures will cover details of numerical relativity, which incorporates theory of partial differential equations, numerical analysis and high performance computer.
Numerical simulations of black hole binaries with Einstein Toolkit
Tomás Andrade
The detection and characterization of gravitational waves requires detailed modelling of the sources that produce them. Most of the events detected so far correspond to binary black holes, which, following an inspiral phase, merge forming another black hole in equilibrium. The most detailed model of this process is provided by Einstein’s equations of General Relativity.
In order to solve these equations in the dynamical setting we are interested in, we need to use High Performance Computing. In this set of lectures, we will provide an introduction to the software Einstein Toolkit, which implements all the necessary steps for the computation of the gravitational waves produced by a black hole binary. We will cover a review of the general algorithm, provide an overview of the software infrastructure, installation, and user interface, alongside with the post-processing of the code’s output necessary to compare to interferometer data.
Some familiarity with Python and the Linux operating system are desirable. Students of the school will be provided with NLHPC accounts with the necessary software installed.
Instructions:
For Linux and Mac users, this is simply done through the terminal, and no preparation is needed.
For Windows users, the preferred choice is to install a Virtual Machine that allows you to run Linux on your laptop. For installation instructions see e.g.
Another option is to use the Windows application Putty, see
https://www.putty.org
https://wiki.nlhpc.cl/Tutorial_de_acceso_a_Leftraru_via_SSH
This course uses resources and services provided by the National Laboratory for High Performance Computing (NLHPC).