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Author : Roberta M. Humphreys,Krzysztof Zbigniew Stanek
Publisher : Unknown
Page : 472 pages
File Size : 54,5 Mb
Release : 2005
Category : Science
ISBN : UOM:39015062451243
Author : Space Telescope Science Institute (U.S.). Symposium,Space Telescope Science Institute (U.S.)
Publisher : Cambridge University Press
Page : 253 pages
File Size : 42,8 Mb
Release : 2009-11-12
Category : Science
ISBN : 9780521762632
Presents observational and theoretical papers from world experts addressing the important role in astrophysics of massive stars.
Author : International Astronomical Union. Symposium
Publisher : Cambridge University Press
Page : 616 pages
File Size : 41,6 Mb
Release : 2008-07-17
Category : Science
ISBN : 0521874726
Reviews our current understanding of the life, evolution and death of massive stars; for researchers and graduate students.
Author : Kris Davidson,Roberta M. Humphreys
Publisher : Springer Science & Business Media
Page : 330 pages
File Size : 51,5 Mb
Release : 2012-03-15
Category : Science
ISBN : 9781461422754
In 1965 Fritz Zwicky proposed a class of supernovae that he called "Type V", described as "excessively faint at maximum". There were only two members, SN1961v and Eta Carinae. We now know that Eta Carinae was not a true supernova, but if it were observed today in a distant galaxy we would call it a "supernova impostor". 170 years ago it experienced a "great eruption" lasting 20 years, expelling 10 solar masses or more, and survived. Eta Carinae is now acknowledged as the most massive, most luminous star in our region of the Galaxy, and it may be our only example of a very massive star in a pre-supernova state. In this book the editors and contributing authors review its remarkable history, physical state of the star and its ejecta, and its continuing instability. Chapters also include its relation to other massive, unstable stars, the massive star progenitors of supernovae, and the "first" stars in the Universe.
Author : Roberto J. Galván-Madrid
Publisher : Springer Science & Business Media
Page : 122 pages
File Size : 41,6 Mb
Release : 2012-06-08
Category : Science
ISBN : 9781461433088
The most massive stars in the galaxy - those with more than 15 to 20 solar masses - are lilkely to ionize their surroundings before they reach their final mass. How can they accrete in spite of the presence of over-pressurized gas? This thesis presents results of Submillimeter Array (SMA) and Very Large Array (VLA) studies of massive star formation regions in the early stages of ionization, as well as an analysis of numerical simulations of the evolution of these young HII regions. The results favor a picture in which very massive stars form in accretion flows that are partially ionized and that keep accreting material from their environment.
Author : National Research Council,Division on Engineering and Physical Sciences,Space Studies Board,Board on Physics and Astronomy,Committee for a Decadal Survey of Astronomy and Astrophysics
Publisher : National Academies Press
Page : 324 pages
File Size : 42,5 Mb
Release : 2011-02-04
Category : Science
ISBN : 9780309157995
Driven by discoveries, and enabled by leaps in technology and imagination, our understanding of the universe has changed dramatically during the course of the last few decades. The fields of astronomy and astrophysics are making new connections to physics, chemistry, biology, and computer science. Based on a broad and comprehensive survey of scientific opportunities, infrastructure, and organization in a national and international context, New Worlds, New Horizons in Astronomy and Astrophysics outlines a plan for ground- and space- based astronomy and astrophysics for the decade of the 2010's. Realizing these scientific opportunities is contingent upon maintaining and strengthening the foundations of the research enterprise including technological development, theory, computation and data handling, laboratory experiments, and human resources. New Worlds, New Horizons in Astronomy and Astrophysics proposes enhancing innovative but moderate-cost programs in space and on the ground that will enable the community to respond rapidly and flexibly to new scientific discoveries. The book recommends beginning construction on survey telescopes in space and on the ground to investigate the nature of dark energy, as well as the next generation of large ground-based giant optical telescopes and a new class of space-based gravitational observatory to observe the merging of distant black holes and precisely test theories of gravity. New Worlds, New Horizons in Astronomy and Astrophysics recommends a balanced and executable program that will support research surrounding the most profound questions about the cosmos. The discoveries ahead will facilitate the search for habitable planets, shed light on dark energy and dark matter, and aid our understanding of the history of the universe and how the earliest stars and galaxies formed. The book is a useful resource for agencies supporting the field of astronomy and astrophysics, the Congressional committees with jurisdiction over those agencies, the scientific community, and the public.
Author : Pierre-Yves Bely,Carol Christian,Jean-René Roy
Publisher : Cambridge University Press
Page : 295 pages
File Size : 41,9 Mb
Release : 2010-03-11
Category : Science
ISBN : 9780521180665
A practical answer guide to humankind's age-old questions on planets, our universe and everything beyond and between.
Author : Henny J. G. L. M. Lamers,Emily M. Levesque
Publisher : CRC Press
Page : 342 pages
File Size : 41,8 Mb
Release : 2018-02-28
Category : Stars
ISBN : 0750312793
'Understanding Stellar Evolution' is based on a series of graduate-level courses taught at the University of Washington since 2004, and is written for physics and astronomy students and for anyone with a physics background who is interested in stars. It describes the structure and evolution of stars, with emphasis on the basic physical principles and the interplay between the different processes inside stars such as nuclear reactions, energy transport, chemical mixing, pulsation, mass loss, and rotation. Based on these principles, the evolution of low- and high-mass stars is explained from their formation to their death. In addition to homework exercises for each chapter, the text contains a large number of questions that are meant to stimulate the understanding of the physical principles. An extensive set of accompanying lecture slides is available for teachers in both Keynote(R) and PowerPoint(R) formats.
Author : Chryssa Kouveliotou,J.E Ventura,E.P. van den Heuvel,Edward Peter Jacobus van den Heuvel
Publisher : Springer Science & Business Media
Page : 546 pages
File Size : 41,7 Mb
Release : 2001-12-31
Category : Science
ISBN : 140200205X
The foremost observers and theorists discuss the latest developments in the astrophysics of neutron stars, black holes and their interaction in the universe. Often found in compact, interacting binaries, these objects exhibit broadly similar behaviour. The determination of observational signatures that distinguish between these two types of objects is systematically explored. Supernovae and evolutionary scenarios leading to neutron stars and black holes, single or in binaries, are also discussed in detail. There is also a discussion of the decades old mystery of cosmic gamma ray bursts, currently thought to represent enormous stellar explosions at cosmological distances. These could be the result of mergers of a neutron star and its compact binary companion: a literal neutron star-black hole connection. A lucid series of lectures for the advanced graduate student. A unifying text that will appeal to the research astrophysicist and space physicist.
Author : Andrew King
Publisher : OUP Oxford
Page : 137 pages
File Size : 52,5 Mb
Release : 2012-07-26
Category : Science
ISBN : 9780191633843
Every atom of our bodies has been part of a star. Our very own star, the Sun, is crucial to the development and sustainability of life on Earth. This Very Short Introduction presents a modern, authoritative examination of how stars live, producing all the chemical elements beyond helium, and how they die, sometimes spectacularly, to end as remnants such as black holes. Andrew King shows how understanding the stars is key to understanding the galaxies they inhabit, and thus the history of our entire Universe, as well as the existence of planets like our own. King presents a fascinating exploration of the science of stars, from the mechanisms that allow stars to form and the processes that allow them to shine, as well as the results of their inevitable death. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Author : Jorick S. Vink
Publisher : Springer
Page : 277 pages
File Size : 54,6 Mb
Release : 2014-10-25
Category : Science
ISBN : 9783319095967
This book presents the status of research on very massive stars in the Universe. While it has been claimed that stars with over 100 solar masses existed in the very early Universe, recent studies have also discussed the existence and deaths of stars up to 300 solar masses in the local Universe. This represents a paradigm shift for the stellar upper-mass limit, which may have major implications far beyond the field of stellar physics. The book comprises 7 chapters, which describe this discipline and provide sufficient background and introductory content for graduate (PhD) students and researchers from different branches of astronomy to be able to enter this exciting new field of very massive stars.
Author : Wilfried Boland,Hugo van Woerden
Publisher : Springer Science & Business Media
Page : 392 pages
File Size : 44,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400954786
Proceedings of a Symposium held in Dwingeloo, The Netherlands, September 24-26, 1984 in honour of Adriaan Blaauw on the occasion of his 70th birthday
Author : D. Vanbeveren,W. van Rensbergen,C. de Loore
Publisher : Springer Science & Business Media
Page : 472 pages
File Size : 40,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401110808
Massive 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 : D. Kunth
Publisher : Atlantica Séguier Frontières
Page : 668 pages
File Size : 43,6 Mb
Release : 1996
Category : Cosmology
ISBN : 2863321943
Author : Claus Leitherer,Space Telescope Science Institute (U.S.)
Publisher : Cambridge University Press
Page : 354 pages
File Size : 55,7 Mb
Release : 1991-05-16
Category : Science
ISBN : 0521404657
This book reviews the importance of massive stars in several areas of astrophysics. Massive stars are objects that are 10-100 times the mass of our Sun. Above ten solar masses, loss through stellar winds begins to have a major impact on the evolution of a star. The upper limit of 100 solar masses is derived from observations. Significant progress has now been achieved in massive star research. New models, along with high quality observations, have improved our understanding of the formation, structure, atmosphere, and evolution of these massive objects. They are formed in violent bursts of star formation and are probably related to the phenomena observed in active galactic nuclei. The workshop at the Space Telescope Science Institute examined the interplay between the astrophysics of massive stars and their location in extragalactic starburst regions. There are eighteen chapters by leading researchers. Each has been carefully edited to ensure that the book is a comprehensive introduction to the theory and observation of massive stars in starburst regions.