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Variable Stars: Key to Stellar Evolution and Structure of the Galaxies
Details
Variable star studies play an important roles in understanding the physical properties of the galaxies and clusters they are present in. The stars in globular clusters are believed to have formed roughly at the same time (although there is also mounting evidence that some clusters have formed via several episodes of star formation), from the same primordial material, and with the same composition. This should lead to a homogeneity in certain fundamental properties of the stars within each cluster, but with differences between the clusters. Knowledge about these properties, such as metallicity, age, and kinematics, are therefore important. One way to obtain better constraints on some of these physical parameters is to study the population of variable stars, especially RR Lyrae stars. Observing variable stars in different galaxy environments makes it possible to relate the types of variable stars to the stellar populations in their host galaxies.
Autorentext
Dr Magdy Elkhateeb, has obtained his PhD in Astrophysics in 1999. Since then he worked in the field of variable stars, Cepheids, Eclipsing binaries. He published several papers and shared in several international working groups.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786206844556
- Genre Physics
- Anzahl Seiten 72
- Herausgeber LAP LAMBERT Academic Publishing
- Größe H220mm x B220mm x T150mm
- Jahr 2023
- EAN 9786206844556
- Format Kartonierter Einband
- ISBN 978-620-6-84455-6
- Titel Variable Stars: Key to Stellar Evolution and Structure of the Galaxies
- Autor Magdy Elkhateeb , Moqbil Alenazi
- Untertitel DE
- Sprache Englisch