Download or read book Outer Layers of White Dwarf Stars written by Gilles Fontaine and published by . This book was released on 1974 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book White Dwarfs written by G. Vauclair and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European Workshop on White Dwarfs was initiated by Prof. V. Weidemann, with the first meeting organized in Kiel (FRG) in 1974. Almost every two years, an increasing number of astronomers met to share their results and projects in the subsequent workshops: Frascati (1976), Tel Aviv (1978), Paris (1981), Kiel (1984), Frascati (1986). In the mean time, two major IAU colloquia (No. 53 in Rochester, NY, 1979; and No. 114 in Hanover, NH, 1988) emphasized the importance of these stars for our understanding of stellar evolution. The informal organization of the white dwarf community has been the starting point for large cooperative projects of which the Hubble Space Telescope "White Dwarf Consortium" and the "Whole Earth Telescope" are the most spectacular examples. But many other successful collaborations have also been born during the very exciting discussions conducted in the last 16 years on the occasion of our regular meetings. The 7th European Workshop on White Dwarfs took place the year of the seventieth birthday of Prof. Evry Schatzman, whose pioneering work has been the inspiration for many of the new ideas in the white dwarf community. The Scientific Organizing Committee has agreed to dedicate the workshop to him on this occasion. We are pleased to publish as an introduction to the workshop, the text of the talk delivered by Prof. Schatzman at the workshop's banquet.
Download or read book Unlocking the Secrets of White Dwarf Stars written by Hugh M. Van Horn and published by Springer. This book was released on 2014-11-14 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: White dwarfs, each containing about as much mass as our Sun but packed into a volume about the size of Earth, are the endpoints of evolution for most stars. Thousands of these faint objects have now been discovered, though only a century ago only three were known. They are among the most common stars in the Milky Way Galaxy, and they have become important tools in understanding the universe. Yet a century ago only three white dwarfs were known. The existence of these stars completely baffled the scientists of the day, and solving the mysteries of these strange objects required revolutionary advances in science and technology, including the development of quantum physics, the construction and utilization of large telescopes, the invention of the digital computer, and the ability to make astronomical observations from space. This book tells the story of the growth in our understanding of white dwarf stars, set within the context of the relevant scientific and technological advances. Part popular science, part historical narrative, this book is authored by one of the astrophysicists who participated directly in uncovering some of the secrets of white dwarf stars.
Download or read book Planets Stars and Stellar Systems written by Linda M. French and published by Springer. This book was released on 2013-02-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is volume 3 of Planets, Stars and Stellar Systems, a six-volume compendium of modern astronomical research covering subjects of key interest to the main fields of contemporary astronomy. This volume on “Solar and Stellar Planetary Systems” edited by Linda French and Paul Kalas presents accessible review chapters From Disks to Planets, Dynamical Evolution of Planetary Systems, The Terrestrial Planets, Gas and Ice Giant Interiors, Atmospheres of Jovian Planets, Planetary Magnetospheres, Planetary Rings, An Overview of the Asteroids and Meteorites, Dusty Planetary Systems and Exoplanet Detection Methods. All chapters of the handbook were written by practicing professionals. They include sufficient background material and references to the current literature to allow readers to learn enough about a specialty within astronomy, astrophysics and cosmology to get started on their own practical research projects. In the spirit of the series Stars and Stellar Systems published by Chicago University Press in the 1960s and 1970s, each chapter of Planets, Stars and Stellar Systems can stand on its own as a fundamental review of its respective sub-discipline, and each volume can be used as a textbook or recommended reference work for advanced undergraduate or postgraduate courses. Advanced students and professional astronomers in their roles as both lecturers and researchers will welcome Planets, Stars and Stellar Systems as a comprehensive and pedagogical reference work on astronomy, astrophysics and cosmology.
Download or read book Discovering the Universe written by William J. Kaufmann and published by Macmillan. This book was released on 2008-12-26 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discovering the Universe: From the Stars to the Planets engages students with an inquiry-based exploration of the universe and the scientific process. Developed with a “big picture” approach, the text first explains how the stars, the galaxies, and the entire universe formed, and then discusses planets and other components of our solar system. Students follow this natural conceptual progression within a proven learning method designed to address misconceptions and build a deep understanding of science and the world around us.
Download or read book Latest Generation White Dwarf Cooling Models Theory and Applications written by Isabel Renedo Rouco and published by . This book was released on 2015 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: White dwarfs are the most common stellar evolutionary end-point. Moreover, they can be considered as reliable cosmic clocks to infer the age of a wide variety of stellar populations, including globular and open clusters. Consequently, there is a considerable interest in the study of white dwarf cooling models. In this thesis we used two different approaches. From a theorical perspective, we computed a set of new cooling white dwarfs sequences which incorporates the most up-to-date physical inputs for precision white dwarf cosmochronology and for asteroseismological studies of ZZ Ceti stars. Moreover, we studied the role of 22Ne diffusion in the evolution of white dwarf stars with high-metallicity progenitors. Our evolutionary sequences have been self-consistently evolved from the zero age main sequence to the white dwarf stage. Our calculations include: nuclear burning at the very early phases of white dwarf evolution (which is important to determine the final thickness of the hydrogen-rich envelope), diffusion and gravitational settling (which are important to shape the profiles of the outer layers), accurate neutrino emission rates (which control the cooling at high luminosities), a correct treatment of crystallization and phase separation of carbon and oxygen (which dominate the cooling times at low luminosities), a very detailed equation of state (which is important in all the evolutionary phases), and improved non-gray model atmospheres (which allow for a precise determination of white dwarf colors and outer boundary conditions for the evolving models). From an applied point of view, we use a Monte Carlo simulator that employs our up-to-date evolutionary cooling sequences for white dwarfs. From this and the observations obtained by Hubble Space Telescope of NGC 6791, a nearby metal-rich open cluster, we obtain important conclusions. NGC 6791 is a well studied metal-rich open cluster ([Fe/H]¿ 0.4) that it is so close to us that can be imaged down to luminosities fainter than that of the termination of its white-dwarf cooling sequence, thus allowing for an in-depth study of its white dwarf population. We constrain important properties of this cluster stellar population, such as the age, or the existence of a putative population of massive helium core white dwarfs among other aspects. Some of our main findings can be summarized as follows. With respect to the computation of new cooling sequences for hydrogen-rich DA white dwarfs (Renedo et al. 2010) We correctly reproduced the observed initial-to-final mass relationship of white dwarfs with solar metallicity progenitors. We calculated the energy released from 22Ne sedimentation and we confirm this energy release strongly delays the cooling. The precise value of the delays depends on the mass of the white dwarf, its luminosity and on the metal content. We also solved the age discrepancy between the main sequence turn-off age (̃ 8 Gyr) and the age derived from the termination of the white dwarf cooling sequence (̃ 6 Gyr). Finally we found that the fraction of non-DA white dwarfs in this particular cluster is surprinsingly small, on the order of 6%.
Download or read book Astronomy and Astrophysics Volume II written by Oddbjørn Engvold Bozena Czerny, John Lattanzio and Rolf Stabell and published by EOLSS Publications. This book was released on 2012-11-30 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding Stellar Evolution written by Henny J. G. L. M. Lamers and published by CRC Press. This book was released on 2018-02-28 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: '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.
Download or read book White Dwarfs written by J. Isern and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of white dwarfs has been steadily growing during the last years and now is a mature field extending its influence over many others. Since white dwarfs are long lived objects, they can be used to obtain information about the history of the Galaxy. The simplicity of their structures enables them to act as precise particle physics laboratories and the extreme con ditions reached at their surfaces allow us to test the equation of state and to study the behavior of matter under conditions impossible to be reached in terrestrial laboratories. Nevertheless, white dwarfs are still challenging astrophysicists. Many questions, ranging from the determination of funda mental parameters to the evolution of their outer layers, are still waiting for a satisfactory answer. The European Workshop series on White Dwarfs started in 1974 as a con sequence of the effort and enthusiasm of Professor Volker Weidemann. The existing proceedings of these meetings, together with those corresponding to the lAU Colloquia held in Rochester (1979) and in Hanover (1988), provide a unique opportunity to follow the development of this field. We hope that the present volume will provide a representative snapshot of the state of the art in 1996. In this sense we are very indebted to all the participants that have sent their contributions according to the instructions (this clearly excludes everybody beyond three sigmas from the standards).
Download or read book The Equation of State in Astrophysics written by G. CHABRIER (Ed) and published by Cambridge University Press. This book was released on 1994-08-11 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique review of our understanding of dense ionised matter in astrophysical contexts - essential reading for graduate students and researchers.
Download or read book Encyclopedia of Space written by Heather Couper and published by Penguin. This book was released on 2009-01-30 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blast off into space to discover the galaxies and beyond with the new edition of this out-of-this-world reference Send your child on an amazing journey into space. They'll see the Hubble telescope orbiting the Earth, discover the birth of our solar system and follow the search for life on Mars. Packed with practical tips for the amateur astronomer, spectacular images from space, detailed charts and fantastic facts. Perfect for home or school, there are even instructions on building a simple telescope! Supports Common Core State Standards.
Download or read book The Data Book of Astronomy written by Patrick Moore and published by CRC Press. This book was released on 2000-01-01 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filled with data about the Earth, Moon, the planets, the stars, our Galaxy, and the myriad galaxies in deep space, this invaluable resource reveals the latest scientific discoveries about black holes, quasars, and the origins of the Universe. It includes maps supported by detailed tables of the names, positions, magnitudes, and spectra of the main stars in each constellation along with key data on galaxies, nebulae, and clusters. MNASSA wrote, "This book fills a niche with detailed astronomical data and concise explanations, all at an accessible level it is an excellent resource, and probably will be the first book I shall reach for.
Download or read book The Cosmos written by Christopher De Pree, PhD and published by Penguin. This book was released on 2014-10-07 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Major new discoveries in space are made almost weekly and there is so much for any new enthusiast to learn and explore. Beginning with the solar system, the Sun, all its planets, major moons, and other features, such as the asteroid belt, Idiot's Guides: The Cosmos is packed with information and features the best photos from various explorations. Beautiful photography and detailed descriptions of the various types of masses are compared to Earth-- making the information as easy to grasp as possible. The book also explores the Milky Way, the various star types, including black holes, galaxy filaments, and much more. Idiot's Guides: The Cosmos is a fascinating and easy-to-understand exploration of the universe. Dozens of stunning, full-color photos highlight the latest discoveries and beauty of space, including the solar system, the Sun, the asteroid belt, the Milky Way, various star types, black holes, and more.
Download or read book The Stars written by DK and published by Penguin. This book was released on 2016-10-11 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expand your horizons and take in the awesome sights of the Universe. Using stunning space photography and easy-to-understand infographics, The Stars takes you to scores of galaxy clusters fantastically far away. Since the Big Bang 13.8 billion years ago, there are now hundreds of billions of stars, 200 billion alone in our home galaxy - the Milky Way. The Stars details 88 constellations to be found in the night sky, including Ursa Major, which contains the seven stars that make up the Plough, as well as Hercules, Lyra, Orion, and far away Andromeda. It explains how they came into being, where they are situated, and their key features. Feast your eyes on glowing galaxies, and rare sights such as dust clouds in the Carina and Ring Nebulae, taken by the Hubble Space Telescope. The Stars also provides an endless parade of mind-blowing facts such as when Betelgeuse explodes, it will release more energy in an instant that the Sun produces in its entire lifetime!
Download or read book In Quest of the Universe written by Theo Koupelis and published by Jones & Bartlett Learning. This book was released on 2007 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt: New to this Edition! A new chapter on the Night Sky urges students to become "backyard astronomers" and observe the sky on multiple clear nights while taking note of the patterns of the positions of stars and planets.New to this
Download or read book Nebulae and How to Observe Them written by Steven Coe and published by Springer Science & Business Media. This book was released on 2007-03-14 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an up-to-date detailed description and categorisation of the large range of astronomical objects that fall under the general heading of nebulae, and then instructs the reader in the best ways to successfully observe and record them. Nebulae and How to Observe Them is a comprehensive mine of information for all levels of amateur observers, from the beginner to the experienced.
