- Docente: Fabrizio Brighenti
- Crediti formativi: 6
- SSD: FIS/05
- Lingua di insegnamento: Inglese
- Moduli: Fabrizio Brighenti (Modulo 1) Myriam Gitti (Modulo 2)
- Modalità didattica: Convenzionale - Lezioni in presenza (Modulo 1) Convenzionale - Lezioni in presenza (Modulo 2)
- Campus: Bologna
- Corso: Laurea Magistrale in Astrophysics and Cosmology (cod. 5828)
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Orario delle lezioni (Modulo 1)
dal 19/02/2025 al 28/05/2025
Conoscenze e abilità da conseguire
The aim of this course is to provide a broad-band knowledge of the physical properties of galaxy clusters ecosystem (dark matter, gas, galaxies and non thermal components). At the end of the class the student will be familiar with the current astrophysical research on the evolution of gas and galaxies in clusters. The student will acquire a deep understanding of several important processes, like AGN feedback, chemical enrichment, galaxy ram pressure stripping, relativistic particles physics, and more. The course will provide the necessary astronomical background and will dive deep into several key research topics, always comparing theory and observations. At the end of the course the student will be able to comprehend research papers on these subjects.
Contenuti
Physical components of Galaxy Clusters: dark matter, intracluster gas, galaxies, relativistic particles and magnetic field.
Intracluster medium: basics of plasma physics. Equilibrium configurations of the gas. Thermal and dynamical evolution of the gas: theory of cooling flow. Cooling flow problems. AGN feedback. Chemical enrichment of the intracluster medium. Use of clusters in Cosmology.
Galaxies: morphology-density relation. Dynamical interactions between galaxies: mergings and harassment. Interaction between galaxies and the intracluster medium: ram pressure stripping and evaporation. Formation of the central galaxy: dynamical friction.
Non-thermal components: magnetic field and relativistic particles, synchrotron and inverse Compton emission, methods to estimate the magnetic field intensity, equipartition. Radio emission from X-ray cavities and internal composition of radio lobes. Diffuse radio sources: halos, relics and mini-halos. Slow diffusion problem. Basics of particle acceleration.
Testi/Bibliografia
SLides of the lectures + scientific papers (quoted in the slides).
Specific chapters of several books, quoted during the lectures.
Metodi didattici
Lectures and discussion on the theory and observations, using both slides and blackboard.
Practical activity: visualization and simple analysis of X-ray (Chandra) data with the software ds9.
Modalità di verifica e valutazione dell'apprendimento
Oral exam on the course content and discussion of the written report of the practical activity (to be submitted in advance).
The first part of the oral exam is a discussion on a subject chosen by the student. The second part concerns discussions and questions on other topics covered in the class.
Strumenti a supporto della didattica
Slides and blackboard.
Orario di ricevimento
Consulta il sito web di Fabrizio Brighenti
Consulta il sito web di Myriam Gitti