Download or read book Eta Carinae and the Supernova Impostors written by Kris Davidson and published by Springer Science & Business Media. This book was released on 2012-03-15 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Luminous Stars in Nearby Galaxies written by Roberta M. Humphreys and published by MDPI. This book was released on 2020-12-10 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies 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.
Download or read book The Impact of Binary Stars on Stellar Evolution written by Giacomo Beccari and published by Cambridge University Press. This book was released on 2019-04-18 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stars are mostly found in binary and multiple systems, with at least 50% of all solar-like stars having companions; this fraction approaches 100% for the most massive stars. A large proportion of these systems interact and alter the structure and evolution of their components, leading to exotic objects such as Algol variables, blue stragglers and other chemically peculiar stars, but also to phenomena such as non-spherical planetary nebulae, supernovae and gamma-ray bursts. While it is understood that binaries play a critical role in the Initial Mass Function, the interactions among binary systems significantly affect the dynamical evolution of stellar clusters and galaxies. This interdisciplinary volume presents results from state-of-the-art models and observations aimed at studying the impact of binaries on stellar evolution in resolved and unresolved populations. Serving as a bridge between observational and theoretical astronomy, it is a comprehensive review for researchers and advanced students of astrophysics.
Download or read book Pulsating Stars written by Márcio Catelan and published by John Wiley & Sons. This book was released on 2015-03-23 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book surveys our understanding of stars which change in brightness because they pulsate. Pulsating variable stars are keys to distance scales inside and beyond the Milky Way galaxy. They test our understanding not only of stellar pulsation theory but also of stellar structure and evolution theory. Moreover, pulsating stars are important probes of the formation and evolution of our own and neighboring galaxies. Our understanding of pulsating stars has greatly increased in recent years as large-scale surveys of pulsating stars in the Milky Way and other Local Group galaxies have provided a wealth of new observations and as space-based instruments have studied particular pulsating stars in unprecedented detail.
Download or read book The Physics and Astrophysics of Neutron Stars written by Luciano Rezzolla and published by Springer. This book was released on 2019-01-09 with total page 825 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the recent progress in the physics and astrophysics of neutron stars and, most importantly, it identifies and develops effective strategies to explore, both theoretically and observationally, the many remaining open questions in the field. Because of its significance in the solution of many fundamental questions in nuclear physics, astrophysics and gravitational physics, the study of neutron stars has seen enormous progress over the last years and has been very successful in improving our understanding in these fascinating compact objects. The book addresses a wide spectrum of readers, from students to senior researchers. Thirteen chapters written by internationally renowned experts offer a thorough overview of the various facets of this interdisciplinary science, from neutron star formation in supernovae, pulsars, equations of state super dense matter, gravitational wave emission, to alternative theories of gravity. The book was initiated by the European Cooperation in Science and Technology (COST) Action MP1304 “Exploring fundamental physics with compact stars” (NewCompStar).
Download or read book Things That Are written by Amy Leach and published by Milkweed Editions. This book was released on 2012-07-03 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essays by a Whiting Award winner: “Like a descendant of Lewis Carroll and Emily Dickinson . . . one of the most exciting and original writers in America.” —Yiyun Li, author of Must I Go Things That Are takes jellyfish, fainting goats, and imperturbable caterpillars as just a few of its many inspirations. In a series of essays that progress from the tiniest earth dwellers to the most far-flung celestial bodies—considering the similarity of gods to donkeys, the inexorability of love and vines, the relations of exploding stars to exploding sea cucumbers—Amy Leach rekindles a vital communion with the wild world, dormant for far too long. Things That Are is not specifically of the animal, the human, or the phenomenal; it is a book of wonder, one the reader cannot help but leave with their perceptions both expanded and confounded in delightful ways. This debut collection comes from a writer whose accolades precede her: a Whiting Award, a Rona Jaffe Award, a Best American Essays selection, and a Pushcart Prize, all received before her first book-length publication. Things That Are marks the debut of an entirely new brand of nonfiction writer, in a mode like that of Ander Monson, John D’Agata, and Eula Biss, but a new sort of beast entirely its own. “Explores fantastical and curious subjects pertaining to natural phenomena . . . for those interested in looking at the natural world through the lens of a fairy tale, this is a bonbon of a book.” —Kirkus Reviews
Download or read book Clumping in Hot star Winds written by Wolf-Rainer Hamann and published by Universitätsverlag Potsdam. This book was released on 2008 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fate of the Most Massive Stars written by Roberta M. Humphreys and published by . This book was released on 2005 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Future Directions in Ultraviolet Spectroscopy written by George Sonneborn and published by American Institute of Physics. This book was released on 2009-06-11 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Celebration of the scientific accomplishments of the Far Ultraviolet Spectroscopic Explorer mission and a look toward to the future of astronomical ultraviolet spectroscopy. FUSE expanded the far-ultraviolet discovery space by a factor of ~10,000 beyond previous space missions. The science drivers that will help define the next far-ultraviolet capability were discussed.
Download or read book Supernovae and Nucleosynthesis written by David Arnett and published by Princeton University Press. This book was released on 2020-11-10 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the question of how matter has evolved since its origin in the Big Bang, from the cosmological synthesis of hydrogen and helium to the generation of the complex set of nuclei that comprise our world and our selves. A central theme is the evolution of gravitationally contained thermonuclear reactors, otherwise known as stars. Our current understanding is presented systematically and quantitatively, by combining simple analytic models with new state-of-the-art computer simulations. The narrative begins with the clues (primarily the solar system abundance pattern), the constraining physics (primarily nuclear and particle physics), and the thermonuclear burning in the Big Bang itself. It continues with a step-by-step description of how stars evolve by nuclear reactions, a critical investigation of supernova explosion mechanisms and the formation of neutron stars and of black holes, and an analysis of how such explosions appear to astronomers (illustrated by comparison with recent observations). It concludes with a synthesis of these ideas for galactic evolution, with implications for nucleosynthesis in the first generation of stars and for the solar system abundance pattern. Emphasis is given to questions that remain open, and to active research areas that bridge the disciplines of astronomy, cosmochemistry, physics, and planetary and space science. Extensive references are given.
Download or read book Mass Loss from Stars and the Evolution of Stellar Clusters written by Alex de Koter and published by . This book was released on 2008 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In the spring of 2006 a four day international workshop was held in Lunteren, The Netherlands, in honor of the formal retirement of Prof. Henny Lamers. These proceedings provide a comprehensive overview of mass loss in massive stars and of the dynamical fate of clusters. The dynamical evolution of clusters is affected by stellar winds, mass loss outbursts and supernova explosions as well as by the loss of stars in dynamical interactions, thus linking the two central themes of the workshop. It is becoming clear that mass loss by radiation pressure on spectral lines is not only at work in normal O, B, and A stars but also in Luminous Blue Variables and Wolf-Rayet stars. The importance of these line-driven winds relative to outbursts in the Luminous Blue Variable phase of evolution is under debate. A central issue in this discussion is the importance of small and possibly large scale structure in stellar winds and its implications for the measured mass loss rates. These proceedings report on progress establishing wind properties, on theoretical predictions of mass loss and wind structure as a function of stellar properties, and on the effects of mass loss on the evolution of massive stars. As a result of dynamical interactions, clusters may dissolve completely over time. Observational studies of cluster dissolution timescales as a function of cluster formation history and cluster and environmental properties, are at the focus of cluster studies in the last decade. A key topic discussed in this book is whether the old globular clusters we observe today were once similar to present-day massive young clusters. The mass function of the two types of clusters is observed to be different. Is this a result of dynamical evoltuion or were the mass functions different at formation? The 12 invited reviews, 18 contributed talks, 48 poster papers, and two discussion sessions combine to provide and in-depth assessment of both observational and theoretical issues. The book is suitable for researchers and graduate students interested in stellar astrophysics and cluster dynamics."--Provided by publisher.
Download or read book National Optical Astronomy Observatories Newsletter written by and published by . This book was released on 2009 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historical Supernovae and Their Remnants written by Francis Richard Stephenson and published by Oxford University Press on Demand. This book was released on 2002 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text, written by two leading experts, reviews the historical observations of supernova explosions in our Galaxy over the past two thousand years and discusses modern observations of the remnants of these explosions at radio and other wavelengths.
Download or read book Monsters in the Sky written by Paolo Maffei and published by MIT Press (MA). This book was released on 1980 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comets, supernovae, black holes, and quasars are among the "monsters" of the book's title--extraordinary astronomical bodies and phenomena that scientists now believe are the key to understanding the rules of the universe. "Monsters in the Sky" is the sequel to Paolo Maffei's popular "Beyond the Moon" (MIT Press, 1978), which gave lay readers a grand tour of the natural order of the universe.Beginning with comets, "Monsters in the Sky" moves outward from our solar system, from one enigma to the next, ending with those farthest removed, the invisible "hidden mass" of galactic clusters extremely distant from us. Between the comets and the hidden galactic mass, the book's topics include: satellite clouds, dust rings, cyrillids and tektites, the mysterious planet Vulcan, nebulae and novae, super-supernovae, "runaway stars," the future of our own star, X-rays, the probable cause of the dinosaurs' demise, black holes (probably one of the best discussions of this subject), white holes, journeys through space-time, BL Lacertae objects, Markarian, N, and Seyfert galaxies, quasars, and anomalous red shifts.
Download or read book Astrophysics Of Gas Nebulae and Active Galactic Nuclei written by Donald E. Osterbrock and published by University Science Books. This book was released on 2006 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised and expanded throughout, the new edition is a graduate-level text and reference book on gaseous nebulae, nova and supernova remnants. Much of the new data and new images are from the Hubble Space Telescope with two wholly new chapters being added along with other new features. The previous edition which was tried and tested for thirty years has now been succeeded by a revised, updated, larger edition, which will be valuable to anyone seriously interested in astrophysics.
Download or read book Introduction to Stellar Winds written by Henny J. G. L. M. Lamers and published by Cambridge University Press. This book was released on 1999-06-17 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive introduction to the observations and theories of stellar winds; a long-awaited graduate textbook, written by two founders of the field.
