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| SPAT0007-1 | Variable stars
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| Duration : | 20h Th |
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| Credits/ECTS : |
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| Holder(s) : | Grégor Rauw |
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| Language : | Langue française |
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| Course contents : | The observational properties of many different categories of variable stars (including single and multiple objects) are presented. Various techniques to study these objects are described and the latest models derived from these observations are presented. |
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| Course objective : | The course provides an introduction to the observational study of variable stars addressing three major questions:
- what are their properties?
- how to extract the most relevant information from their spectra and/or light curves?
- and how to interpret the observed variability?
For single stars, the lectures focus on the different categories of pulsating stars across the Hertzsprung-Russell diagram as well as their period-luminosity relations. The variability of massive stars, mainly due to structures in their stellar winds, is also described. An important part of the course deals with multiple systems harbouring two or more stars. We consider the techniques used to infer fundamental stellar parameters (masses, radii,...) from the study of spectroscopic and eclipsing binaries. We also discuss interacting bianries, such as cataclysmic variables, novae, X-ray binaries,... |
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| Prerequisites : | Good knowledge of mathematics, physics and classical mechanics. |
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| Workshops : | N/A |
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| Organization : | The lectures are usually scheduled as 2h/week over 10 weeks. |
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| Written notes : | The lecture notes are provided in french. |
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| Assessment : | Oral examination. |
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| Contacts : | Gregor Rauw
Research Associate FNRS
Institut d'Astrophysique et Géophysique, Bât. B5c,
Allée du 6 Août, 17
4000 Liège
Tel. +32-(0)4 366 9740
e-mail: rauw@astro.ulg.ac.be |
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| Remarks : | N/A |
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