On the Evolutionary Stage of Stars in the Draco Dwarf Galaxy
Author | : Filippina Caputo |
Publisher | : |
Total Pages | : |
Release | : 1971 |
Genre | : |
ISBN | : |
Download On the Evolutionary Stage of Stars in the Draco Dwarf Galaxy Book in PDF, ePub and Kindle
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download On The Evolutionary Stage Of Stars In The Draco Dwarf Galaxy PDF full book. Access full book title On The Evolutionary Stage Of Stars In The Draco Dwarf Galaxy.
Author | : Filippina Caputo |
Publisher | : |
Total Pages | : |
Release | : 1971 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 860 |
Release | : 1973 |
Genre | : Nuclear energy |
ISBN | : |
Author | : Paul W. Hodge |
Publisher | : Springer Science & Business Media |
Total Pages | : 410 |
Release | : 2006-04-18 |
Genre | : Science |
ISBN | : 0306478188 |
This Atlas provides a complete set of images of Local Group Galaxies (excluding the three for which identification atlases are already in print) and shows the most important objects, including many thousands of individual stars and interstellar objects. It is unique in its coverage and format and provides a source of these fundamental data that will be used for many years. Researchers, students and even amateur astronomers will be able to use the Atlas to identify and study the various components of the nearly 30 important galaxies covered by the Atlas. The objects identified on the more than 200 charts include variable stars, globular star clusters, open star clusters, stellar associations, emission regions, supernova remnants, planetary nebulae and dust clouds. Each galaxy is accompanied by an extensive bibliography.
Author | : Matthew D. Lehnert |
Publisher | : |
Total Pages | : 13 |
Release | : 1992 |
Genre | : Red giants |
ISBN | : |
Author | : James Lequeux |
Publisher | : World Scientific Publishing Company |
Total Pages | : 171 |
Release | : 2013-08-22 |
Genre | : Science |
ISBN | : 9814508799 |
It has been known for a long time that stars are similar to our Sun. But it was only in 1810 that they were shown to be made of an incandescent gas. The chemical composition of this gas began to be determined in 1860. In 1940, it was demonstrated that the energy radiated by the stars is of thermonuclear origin. How stars form from interstellar matter and how they evolve and die was understood only recently, with our knowledge still incomplete. It was also realized recently that close double stars present a wide variety of extraordinary phenomena, which are far from being completely explored.This book explains all these aspects, and also discusses how the evolution of stars determine that of galaxies. The most interesting observations are illustrated by spectacular images, while the theory is explained as simply as possible, without however avoiding some mathematical or physical developments when they are necessary for a good understanding of what happens in stars. Without being a textbook for specialists, this book can be profitably read by students or amateurs possessing some basic scientific knowledge, who would like to be initiated in-depth to the fascinating world of stars.The author, an emeritus astronomer of the Paris Observatory, worked in various domains of astronomy connected with the subject of this book: interstellar matter and evolution of stars and galaxies. He directed the Marseilles observatory from 1983 to 1988 and served for fifteen years as Chief Editor of the professional European journal Astronomy & Astrophysics. He has written many articles and books about physics and astronomy at different levels.
Author | : Maurizio Salaris |
Publisher | : John Wiley & Sons |
Total Pages | : 386 |
Release | : 2005-12-13 |
Genre | : Science |
ISBN | : 9780470092224 |
Evolution of Stars and Stellar Populations is a comprehensive presentation of the theory of stellar evolution and its application to the study of stellar populations in galaxies. Taking a unique approach to the subject, this self-contained text introduces first the theory of stellar evolution in a clear and accessible manner, with particular emphasis placed on explaining the evolution with time of observable stellar properties, such as luminosities and surface chemical abundances. This is followed by a detailed presentation and discussion of a broad range of related techniques, that are widely applied by researchers in the field to investigate the formation and evolution of galaxies. This book will be invaluable for undergraduates and graduate students in astronomy and astrophysics, and will also be of interest to researchers working in the field of Galactic, extragalactic astronomy and cosmology. comprehensive presentation of stellar evolution theory introduces the concept of stellar population and describes "stellar population synthesis" methods to study ages and star formation histories of star clusters and galaxies presents stellar evolution as a tool for investigating the evolution of galaxies and of the universe in general
Author | : |
Publisher | : |
Total Pages | : 20 |
Release | : 2008 |
Genre | : |
ISBN | : |
We present a CCD survey of variable stars in the Draco dwarf spheroidal galaxy. This survey, which has the largest areal coverage since the original variable star survey by Baade & Swope, includes photometry for 270 RR Lyrae (RRL) stars, 9 anomalous Cepheids (ACs), 2 eclipsing binaries, and 12 slow, irregular red variables, as well as 30 background QSOs. Twenty-six probable double-mode RRL starswere identified. Observed parameters, including mean V and I magnitudes, V amplitudes, and periods, have been derived. Photometric metallicities of the ab-type RRL stars were calculated according to the method of Jurcsik & Kovacs, yielding a mean metallicity of [Fe/H] = 2.19 0.03. Thewell-known Oosterhoff intermediate nature of the RRL stars in Draco is reconfirmed, although the double-mode RRL stars, with one exception, have properties similar to those found in Oosterhoff type II globular clusters. The period luminosity relation of the ACs is rediscussed with the addition of the new Draco ACs.
Author | : D. Kunth |
Publisher | : Atlantica Séguier Frontières |
Total Pages | : 540 |
Release | : 1985 |
Genre | : Dwarf galaxies |
ISBN | : 9782863320372 |
Author | : Denise A. Hurley-Keller |
Publisher | : |
Total Pages | : 292 |
Release | : 2000 |
Genre | : |
ISBN | : |
Author | : Derek Ward-Thompson |
Publisher | : Cambridge University Press |
Total Pages | : 229 |
Release | : 2011-02-10 |
Genre | : Science |
ISBN | : 1139494473 |
Guiding the reader through all the stages that lead to the formation of a star such as our Sun, this advanced textbook provides students with a complete overview of star formation. It examines the underlying physical processes that govern the evolution from a molecular cloud core to a main-sequence star, and focuses on the formation of solar-mass stars. Each chapter combines theory and observation, helping readers to connect with and understand the theory behind star formation. Beginning with an explanation of the interstellar medium and molecular clouds as sites of star formation, subsequent chapters address the building of typical stars and the formation of high-mass stars, concluding with a discussion of the by-products and consequences of star formation. This is a unique, self-contained text with sufficient background information for self-study, and is ideal for students and professional researchers alike.