高エネルギー天文学特論III

Understand production mechanisms of high-energy radiation, in particular X-rays, in the universe. Students without prior knowledge of astronomy will learn various high-energy phenomena occurring in the universe, such as X-ray radiation from black holes and neutron stars.

Students will also learn principles of the X-ray observation from space using artificial satellites and how to analyze X-ray data to derive physical parameters of the X-ray sources. Intuitive understanding and order estimates are emphasized than rigorous derivation. Practical examples are given as much as possible.

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授業計画

1. Review of fundamental physics 2. Basic of astronomy and X-ray astronomy 3. X-ray instruments, history of X-ray astronomy 4. Orbits and attitudes of the astronomical satellites 5. Time system, timing analysis, Fast Fourier Transformation, X-ray pulsars 6. Blackbody, radiative transfer, emission/absorption line, line profile 7. X-ray emission from accretion disk 8. Relativistic effects in X-ray observation 9.. Cosmic X-ray background, log N-log S, Galactic ridge X-ray emission 10. X-ray emission from thermal plasma, bremsstrahlung, thermal Comptonization 11. X-ray emission from non-thermal plasma, synchrotron emission, non-thermal Comptonization 12. Interaction of matter and radiation, photo ionization 13. Observation of black holes, multi-messenger astronomy 14. Exam

授業の方法

Lecture.

成績評価方法

Written exam in the last session.

教科書

Not required.

参考書

"Radiative Processes in Astrophysics", George B. Rybicki and Alan P. Lightman, Wiley-VCH "High Energy Astrophysics", Jonathan I. Katz (https://personal.psu.edu/*****)

履修上の注意

I intend to use (on-line) white-board more than slides, since I believe writing by hand will help understanding. I expect students to take notes by hand through the lecture. After the lecture, presented materials will be made available on-line. Students are suggested to bring a calculator to carry out simple calculation for practical examples during the lecture.