Описание: This book focuses on the stellar disk evolution and gas disk turbulence of the most numerous galaxies in the local Universe – the dwarf galaxies. The “outside-in” disk shrinking mode was established for a relatively large sample of dwarf galaxies for the first time, and this is in contrast to the “inside-out” disk growth mode found for spiral galaxies. Double exponential brightness profiles also correspond to double exponential stellar mass profiles for dwarf galaxies, which is again different from most spiral galaxies. The cool gas distribution in dwarf galaxies was probed with the spatial power spectra of hydrogen iodide (HI) gas emission, and provided indirect evidence that inner disks of dwarf galaxies have proportionally more cool gas than outer disks. The finding that no correlation exists between gas power spectral indices and star formation gave important constraints on the relation between turbulence and star formation in dwarf galaxies.
Автор: Leblanc, Francis Название: An introduction to stellar astrophysics ISBN: 0470699566 ISBN-13(EAN): 9780470699560 Издательство: Wiley Рейтинг: Цена: 7278.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Fundamental to our understanding of the universe, stellar astrophysics deals with observations, theoretical understanding, classification, computer simulations and modeling of stars and their evolution.
Автор: Ryan Название: Stellar Evolution and Nucleosynthesis ISBN: 0521133203 ISBN-13(EAN): 9780521133203 Издательство: Cambridge Academ Рейтинг: Цена: 8554.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This self-contained astrophysics textbook for advanced undergraduates explores how stars form, what happens to them as they age, and what becomes of them when they die. It contains a wealth of worked examples, exercises with full solutions, full colour illustrations, and clearly identified summaries, key facts and equations.
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