Download or read book Eta Carinae and Other Mysterious Stars written by Theodore R. Gull and published by . This book was released on 2001 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Observational data, laboratory measurements, and modeling efforts are reported in these papers from a conference on the massive star Eta Carinae and other stars with peculiar spectroscopic signatures. Organized in sections on the spectroscopy of Eta Carinae from X-rays to radio, questions from spectroscopy of other peculiar emission line stars, fluorescence and radiative processes, and spectra of Eta Carinae and Weigelt blobs BD, the papers deal with aspects of the field such as Raman scattering and symbiotic stars, the origin of strings in the outer regions in Eta Carinae, selective emission lines in O-type spectra, and cool star chromospheres and the sun. Annotation c. Book News, Inc., Portland, OR (booknews.com)
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 Massive Stars written by Space Telescope Science Institute (U.S.). Symposium and published by Cambridge University Press. This book was released on 2009-11-12 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents observational and theoretical papers from world experts addressing the important role in astrophysics of massive stars.
Download or read book Astrophysical Lasers written by Vladilen Letokhov and published by Oxford University Press on Demand. This book was released on 2009 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in modern radio astronomy led to the discovery of space masers in the microwave range, and it became a powerful tool for studies of interstellar star-forming molecular clouds. Progress in observational astronomy, particularly with ground-based huge telescopes and the space-based Hubble Space Telescope, has led to recent discoveries of space lasers in the optical range. These operate in gas condensations in the vicinity of the mysterious star Eta Carinae (one of the most luminous and massive stars of our Galaxy). Both maser and laser effects, first demonstrated under laboratory conditions, have now been discovered to occur under natural conditions in space too. This book describes consistently the elements of laser science, astrophysical plasmas, modern astronomical observation techniques, and the fundamentals and properties of astrophysical lasers. A book with such an interdisciplinary scope has not been available to date. The book will also be useful for a wider audience interested in modern developments of the natural sciences and technology.
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 The Nature and Evolution of Disks Around Hot Stars written by Richard Ignace and published by . This book was released on 2005 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deep Sky Companions The Messier Objects written by Stephen James O'Meara and published by Cambridge University Press. This book was released on 2014-04-07 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bright galaxies, star clusters, and nebulae catalogued in the late 1700s by the famous comet hunter Charles Messier are still the most widely observed celestial wonders in the sky. The second edition of Stephen James O'Meara's acclaimed observing guide to the Messier Objects features improved star charts for helping you find the objects, a much more robust telling of the history behind their discovery - including a glimpse into Messier's fascinating life - and updated astrophysical facts to put it all into context. These additions, along with new photos taken with the most advanced amateur telescopes, bring O'Meara's first edition more than a decade into the twenty-first century. Expand your universe and test your viewing skills with this truly modern Messier guide. It is a must for all budding night watchers.
Download or read book Stars with the B e Phenomenon written by Michaela Kraus and published by . This book was released on 2006 with total page 434 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 Deep Sky Companions Southern Gems written by Stephen James O'Meara and published by Cambridge University Press. This book was released on 2013-04-08 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Southern Gems, Stephen James O'Meara makes a detour beneath the southern skies, presenting a fresh list of 120 deep-sky objects for southern hemisphere stargazers to observe. Showcasing many exceptional objects catalogued by the pioneering observer James Dunlop, known as the 'Messier of the southern skies', all are visible through small- to moderate-sized telescopes or binoculars under dark skies. The list features some of the blackest dark nebulae, icy blue planetary nebulae, and magnificent galaxies of all types. Each object is accompanied by beautiful photographs and sketches, original finder charts, visual histories, and up-to-date astrophysical background information. Whether you live in the southern hemisphere or are just visiting, this new Deep-Sky Companion will make a perfect observing partner, whatever your background. There is no other southern sky guide like it on the market.
Download or read book Extreme Explosions written by David S. Stevenson and published by Springer Science & Business Media. This book was released on 2013-09-05 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: What happens at the end of the life of massive stars? At one time we thought all these stars followed similar evolutionary paths. However, new discoveries have shown that things are not quite that simple. This book focuses on the extreme –the most intense, brilliant and peculiar– of astronomical explosions. It features highly significant observational finds that push the frontiers of astronomy and astrophysics, particularly as before these objects were only predicted in theory. This book is for those who want the latest information and ideas about the most dramatic and unusual explosions detected by current supernova searches. It examines and explains cataclysmic and unusual events in stellar astrophysics and presents them in a non-mathematical but highly detailed way that non-professionals can understand and enjoy.
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 Theory of Stellar Atmospheres written by Ivan Hubeny and published by Princeton University Press. This book was released on 2014-10-26 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most authoritative synthesis of the quantitative spectroscopic analysis of stellar atmospheres This book provides an in-depth and self-contained treatment of the latest advances achieved in quantitative spectroscopic analyses of the observable outer layers of stars and similar objects. Written by two leading researchers in the field, it presents a comprehensive account of both the physical foundations and numerical methods of such analyses. The book is ideal for astronomers who want to acquire deeper insight into the physical foundations of the theory of stellar atmospheres, or who want to learn about modern computational techniques for treating radiative transfer in non-equilibrium situations. It can also serve as a rigorous yet accessible introduction to the discipline for graduate students. Provides a comprehensive, up-to-date account of the field Covers computational methods as well as the underlying physics Serves as an ideal reference book for researchers and a rigorous yet accessible textbook for graduate students An online illustration package is available to professors at press.princeton.edu
Download or read book Extreme Stars written by James B. Kaler and published by Cambridge University Press. This book was released on 2001-03-22 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 200 years, our knowledge of stars has expanded enormously. From seeing myriad dots of different brightnesses, we moved on to measure distances, temperatures, sizes, chemical compositions, even ages, finding stars that dwarf our Sun and are dwarfed by it, some in their youth, others ancient. First published in 2001, Extreme Stars describes the lives of stars from a fascinating perspective. It examines their amazing extremes and results in an engaging overview of stellar evolution, suitable for anyone interested in viewing or studying stars. Ten chapters, generously illustrated throughout, explain the natures of the brightest, the largest, the hottest, the youngest, and so on, ending with a selection of the strangest stars the Universe has to offer. Taken as a whole, the chapters show how stars develop and die and how each extreme turns into another under the inexorable twin forces of time and gravity.
Download or read book Behold I Show You a Mystery written by Michael L. A. David and published by Author House. This book was released on 2014-03 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: SOME FOURTEEN BILLION YEARS AGO SOMETHING WONDERFUL HAPPENED, EXACTLY WHERE WHO KNOWS?, SOME SAY THAT IT WAS EVERYWHERE AT ONCE, BUT NEVERTHELESS A MIRACULOUS EVENT WAS TAKING PLACE. IT WAS MINUTE IN SIZE, BUT IMMENSE IN ENERGY! IT WAS THE 'BIG BANG', OR 'AND GOD SAID', ..."LET THERE BE"...AND THE UNIVERSE WAS BORN, AND IT CONTINUED TO GROW, AND IT HAS GROWN EXPIDENTIALLY EVER SINCE, AND NOW IT HAS BECOME A HOME FOR US, AND THE MIRIAD OF STARS, AND GALAXIES ARE BEING PREPARED EVEN AS I AM WRITING THIS, ...FOR MANKIND ! AND IT CONTINUES TO GROW, BUT SOME PEOPLE SAY THAT IT WAS JUST AN ACCIDENT, BUT I SAY THAT IT WAS BY DESIGN, AND THAT DESIGN WAS FOR OUR BENEFIT. AND THAT THERE IS A SUPREME BEING, 'A CREATOR', WHO IS FAR ABOVE AND BEYOND OUR CONCEPTION OF SPACE AND TIME, AND THAT HE CARES ABOUT US WITHOUT LIMIT, SO MUCH SO THAT HE BUILT AN ENTIRE UNIVERSE TO ACCOMODATE MANKIND. AND THAT HE HAS A 'PLAN' FOR US THAT WILL BE SO SPECTACULAR THAT WE COULD'NT POSSIBLY IMAGINE OF IT EVEN IN OUR WILDEST DREAMS. AND EVEN THOUGH WE 'FELL' HE NEVER GAVE UP ON US, AND THAT HE CAME DOWN TO THE EARTH TO REDEEM US FROM SIN AND DEATH IN ORDER THAT WE WOULD ONCE AGAIN BE AT THE CENTRE OF THAT 'PLAN', THE WHICH IS ON GOING BUT NOT UNTIL THE EARTH HAS BEEN CLEANSED WILL IT BE INITIATED AND CONTINUED IN EARNEST. AND THIS BOOK DESCRIBES THOSE 'PLANS' . BUT THE CUNNING AND CRAFTY NATURE OF 'LUCIFER', AND OF THE 'FALLEN ANGELS' TRIES TO THWART THOSE PLANS.
Download or read book Exotic Stars as Challenges to Evolution written by Christopher A. Tout and published by . This book was released on 2002 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
