Lecture
-
17 Feb 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - In presenza
Introduction to the units and metrics used in Astrophysics. Parallaxes and definition of the parsec, Introduction to stellar spectra: blackbody radiation, spectral lines, classification of stellar spectra. The Hertzprung-Russel diagram. Exercises.
21 Feb 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - In presenza
Discussion of the exercises from previois lecture. Introduction to stellar model building. Hydrostatic equilibrium, conservation of mass, equations of state, the Lane-Emden equation, the Virial theorem. Some examples, applications and exercises.
24 Feb 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - Mista
Second part of stellar structure equations: energy production timescale by nuclear reactions, reaction probability, Gamow peak. Energy transfer by radiation and by convection, condition for convection to occur in a star.
03 Mar 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - In presenza
Mass-luminosity relation, Eddington limit, stellar nuclear reactions, fate of low-mass and massive stars.
07 Mar 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - Mista
White dwarfs, electron degeneracy pressure, neutron stars, pulsars.
10 Mar 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - Mista
Pulsar emission model, Black holes, binary systems, accretion disks
14 Mar 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - Mista
Introduction to the interstellar medium, the interstellar medium as a fluid, hydrodynamics equations, turbulence, star formation, Jeans mass, freefall time
17 Mar 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - Mista
Interstellar medium: the initial mass function, HII regions, sound waves, shock waves, blast waves, stages of a SN remnant
21 Mar 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - Mista
Stellar systems: globular clusters, open clusters, theoretical methods: distribution function, Jeans equation, relaxation time
24 Mar 2023 (2h 00m)
Evangelia Ntormousi - Corso (attività didattica) - Mista
Introduction to Galaxies: Hubble galaxy classification, kinemtics of ellipticals, tensor virial theorem, kinematics of spirals, evidence for dark matter, description of spiral density waves
Vai alla Ricerca avanzata