# Courses Catalogue

### Syllabus of the course: * Astrophysics III *

In this web page we provide the syllabus of the course Astrophysics III, offered by the Department of Physics.

The list of the courses offered during the current accademic year is available here.

The list of all courses offered by the Department of Physics is available here.

Code | Φ-631 |
---|---|

Type | B |

ECTS | 5 |

Hours | 4 |

Semester | Winter |

Instructor | V. Pavlidou |

Program | Monday, 09:00-11:00, Lecture Room 4 Wednesday, 09:00-11:00, Lecture Room 4 |

Web page | |

Goal of the course | The course is addressed to graduate students, but also to undergraduate students who possess the necessary background. The basic purpose of the course is the presentation of applications of theoretical astrophysics in topics related to the production and transfer of radiation, stellar structure, and galaxies. It is recommended that the students have mastered the topics covered in the undergraduate courses Astrophysics I and II (F-230, F-331), Modern Physics (F-201) and Quantum Mechanics (F-303). |

Syllabus | Radiation field: Intensity, mean intensity, energy density, flux. Radiation transport. I: Interaction of matter with radiation, equation of radiation transport, formal solution. Radiation transport. II: Approximate solutions, Eddington approximation, two-stream approximation, Rosseland approximation. Radiation transport. III: Numerical solutions, Monte Carlo method. Spectral lines: Production and transfer, rate equations, maser. Stellar structure: Equation of hydrostatic equilibrium, Virial theorem, equation of thermal equilibrium, energy transport by convection, structure equations, solar model. Galaxies. I: Morphology, stellar distribution, dust distribution, absorption and scattering of radiation, spectral energy distribution, model of a spiral galaxy. Galaxies. II. Dynamics of galaxies, rotation curves of spiral galaxies, dark matter, model of a spiral galaxy. Four projects are required for the successful completion of the course. Topics include: Two-stream approximation, Monte Carlo method, solar model, spiral galaxy model, rotation curve of a spiral galaxy. |

Bibliography | D. Mihalas, “Stellar Atmospheres”, W.H. Freeman and Company (1978). D. Clayton, “Principles of Stellar Evolution and Nucleosynthesis”, McGraw-Hill (1968). J. Binney & M. Merrifield, “Galactic Astronomy”, Princeton University Press (1998). J. Binney & S. Tremaine, “Galactic Dynamics”, Princeton University Press (1987). |

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