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Author: International Astronomical Union. Symposium
Publisher: Springer Science & Business Media
Published: 1986-06-30
Total Pages: 568
ISBN-13: 9789027722737
DOWNLOAD EBOOKProceedings of the 116th Symposium of the International Astronomical Union, held at Porto Heli, Greece, May 26-31, 1985
Author: Roland Diehl
Publisher: Springer Science & Business Media
Published: 2010-10-02
Total Pages: 577
ISBN-13: 3642126979
DOWNLOAD EBOOKThis book introduces the reader to the field of nuclear astrophysics, i.e. the acquisition and reading of measurements on unstable isotopes in different parts of the universe. The authors explain the role of radioactivities in astrophysics, discuss specific sources of cosmic isotopes and in which special regions they can be observed. More specifically, the authors address stars of different types, stellar explosions which terminate stellar evolutions, and other explosions triggered by mass transfers and instabilities in binary stars. They also address nuclear reactions and transport processes in interstellar space, in the contexts of cosmic rays and of chemical evolution. A special chapter is dedicated to the solar system which even provides material samples. The book also contains a description of key tools which astrophysicists employ in those particular studies and a glossary of key terms in astronomy with radioactivities.
Author: Roberta M. Humphreys
Publisher: MDPI
Published: 2020-12-10
Total Pages: 212
ISBN-13: 3039362801
DOWNLOAD EBOOKStudies on the populations of luminous stars in nearby resolved galaxies have revealed a complex distribution in the luminosity–temperature plane (the HR diagram). The fundamentals of massive star evolution are mostly understood, but the roles of mass loss, episodic mass loss, rotation, and binarity are still in question. Moreover, the final stages of these stars of different masses and their possible relation to each other are not understood. The purpose of this volume is to provide a current review of the different populations of evolved massive stars. The emphasis is on massive stars in the Local Group, the Magellanic Clouds, and the nearby spirals M31 and M33.
Author: Prof. Dr. Roland Wielen
Publisher: Springer Science & Business Media
Published: 2013-04-17
Total Pages: 1122
ISBN-13: 366212355X
DOWNLOAD EBOOKAuthor: D. Vanbeveren
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 472
ISBN-13: 9401110808
DOWNLOAD EBOOKMassive stars occupy an exceptional place in general astrophysics. They trigger many if not all of the important processes in galactic evolution whereas due to their intrinsic brightness, they offer the (only until now) possibility to study the stellar content and stellar behaviour in distant galaxies. The last, say, 25 years, massive stars have been the subject of numerous meetings discussing the influence of massive stars on population synthesis, the number distribution of different types of massive stars, the LBV phenomenon, WR stars, X-ray binaries, stellar winds in massive stars, chemical pecularities in massive stars, supernova explosions of massive stars and the important SN1987A event, the influence of massive stars and chemical evolution of galaxies. It is clear that without a theory of stellar evolution, the study of these topics loses a lot of its significance. Massive star evolution therefore got a chance in these meetings, but rarely as a prime subject. The state of the art, the physical processes and the uncertainties in stellar evolution were barely touched. Even more, the influence of close binaries in all these massive star meetings slowly disappeared the last, say, 13 years without any scientific justification, although a significant fraction of stars occurs in close binaries with periods small enough so that both components will interact during their evolution. Denying the binaries or not discussing their influence on results and conclusions, makes the latter very uncertain or even completely unreliable.
Author: Jose Franco
Publisher: Cambridge University Press
Published: 1993-06-10
Total Pages: 418
ISBN-13: 9780521444125
DOWNLOAD EBOOKThe enormously powerful phenomena of starbursts are examined in this book. These spectacular star-forming events are seen on large scales in some galaxies, often triggered by galactic interactions. An intriguing implication of starburst research is that active galactic nuclei (AGN) may not be powered by accreting black holes. Instead theories are presented where compact powerhouses of dust-enshrouded star formation lie at the core of AGN, with supernovae exploding roughly once per year within massive nuclear concentrations of gas. This book collects articles from a timely international conference in Elba, Italy, in 1992; these comprise a thorough review of the most important developments in galactic-scale star formation since the starburst revolution of the late 1980s. This text will introduce graduate students to this exciting area and keep experts apace with rapid developments in it.
Author: Xuan Thuan Trinh
Publisher: Atlantica Séguier Frontières
Published: 1987
Total Pages: 626
ISBN-13: 9782863320501
DOWNLOAD EBOOKAuthor: David J. Hollenbach
Publisher:
Published: 1993
Total Pages: 424
ISBN-13:
DOWNLOAD EBOOKAuthor: A. Aparicio
Publisher: Cambridge University Press
Published: 1998-06-13
Total Pages: 628
ISBN-13: 9780521632553
DOWNLOAD EBOOKA review of the new subject of extragalactic stellar astrophysics - for both graduate students and researchers working in astrophysics.
Author: Sidney Bergh
Publisher: Cambridge University Press
Published: 2000-05-15
Total Pages: 348
ISBN-13: 1139429655
DOWNLOAD EBOOKThe Local Group is a small cluster of galaxies that includes the Milky Way. At least half of all galaxies in the Universe are thought to belong to similar groups. This authoritative volume provides a comprehensive synthesis of what is known about the Local Group. It begins with a summary of each member galaxy, as well as those galaxies previously regarded as possible members. The book examines the mass, stability and evolution of the Local Group as a whole and includes many important previously unpublished results and conclusions. With clarity, Professor van den Bergh provides a masterful summary of all that is known about the galaxies of the Local Group and their evolution, and expertly places this knowledge in the wider context of on-going studies of galaxy formation and evolution, the cosmic distance scale, and the conditions in the early Universe.
