Eta Carinae At The Millennium
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Eta Carinae At The Millennium
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Author : Jon A. Morse
language : en
Publisher:
Release Date : 1999
Eta Carinae At The Millennium written by Jon A. Morse and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Nature categories.
Eta Carinae And The Supernova Impostors
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Author : Kris Davidson
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-03-15
Eta Carinae And The Supernova Impostors written by Kris Davidson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-15 with Science categories.
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.
Eta Carinae And Other Mysterious Stars
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Author : Theodore R. Gull
language : en
Publisher:
Release Date : 2001
Eta Carinae And Other Mysterious Stars written by Theodore R. Gull and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Science categories.
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)
Astrophysical Lasers
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Author : Vladilen Letokhov
language : en
Publisher: OUP Oxford
Release Date : 2008-12-18
Astrophysical Lasers written by Vladilen Letokhov and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-12-18 with Science categories.
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.
Luminous Stars In Nearby Galaxies
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Author : Roberta M. Humphreys
language : en
Publisher: MDPI
Release Date : 2020-12-10
Luminous Stars In Nearby Galaxies written by Roberta M. Humphreys and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-10 with Computers categories.
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.
Call Of The Cosmic Wild Relativistic Rockets For The New Millennium
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Author : James Essig
language : en
Publisher: Xlibris Corporation
Release Date : 2016-04-13
Call Of The Cosmic Wild Relativistic Rockets For The New Millennium written by James Essig and has been published by Xlibris Corporation this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-13 with Science categories.
This book includes numerous calculations for the many specific examples included within. I have included the many calculated examples to provide the reader with immediate justifications for the numerous concepts described. This was not done to belittle or talk down to the reader but rather to give the reader a clear sense of the plausibility for the propulsion methods and performance capabilities thereof. Interstellar travel at the many specific highly relativistic velocities contemplated in this bookand, in some cases, extreme vehicle massesis still a very controversial subject but nonetheless a highly mathematicalized and intelligible subject. My hope and intention is to thus clearly inspire and show the reader the plausibility of the concepts by providing the reader with proper evidence through his or her simple inspection of the formulas and values included in the computations. Some speculative physics is included, which is based on commonly presented theoretical constructs.
Stellar Pulsations
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Author : J.C. Suárez
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-10-20
Stellar Pulsations written by J.C. Suárez and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-20 with Science categories.
Analyses of photometric time series obtained from the MOST, CoRoT and Kepler space missions were presented at the 20th conference on Stellar Pulsations (Granada, September 2011). These results are leading to a re-appraisal of our views on stellar pulsation in some stars and posing some new and unexpected challenges. The very important and exciting role played by innovative ground-based observational techniques, such as interferometric measurements of giant pulsating stars and high-resolution spectroscopy in the near infrared, is also discussed. These Proceedings are distinguished by the format of the conference, which brings together a variety of related but different topics not found in other meetings of this nature.
Pulsating Stars
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Author : Márcio Catelan
language : en
Publisher: John Wiley & Sons
Release Date : 2015-02-02
Pulsating Stars written by Márcio Catelan and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-02 with Science categories.
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.
John Tebbutt
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Author : Wayne Orchiston
language : en
Publisher: Springer
Release Date : 2016-11-15
John Tebbutt written by Wayne Orchiston and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-15 with Science categories.
This book marks the centennial of Tebbutt's death with a major biographical account surveying his scientific contributions to astronomy, prefaced with a foreword by Sir Patrick Moore. During the second half of the nineteenth century, Tebbutt was Australia's foremost astronomer. He devoted his time and funds to astronomy, and built a truly international reputation that far surpassed Australia's leading professional astronomers of the day. This book marks the centennial of Tebbutt's death with a major biographical account. Tebbutt's remarkable record of achievement extends over more than half a century. Orchiston's book covers the whole of Tebbutt's career, from his yearly observatory reports and comet discoveries to his time as the first president of Sydney's branch of the British Astronomical Association.
South African Journal Of Science
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Author :
language : en
Publisher:
Release Date : 2005
South African Journal Of Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Science categories.