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Cosmic Butterflies

2001-08-16 Nature
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Release : 2001-08-16
Genre : Nature
Kind : eBook
Book Rating : 359/5 ( reviews)

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Book Synopsis Cosmic Butterflies by : Sun Kwok

Download or read book Cosmic Butterflies written by Sun Kwok. This book was released on 2001-08-16. Available in PDF, EPUB and Kindle. Book excerpt: At the end of a star's life, it wraps itself in a cocoon by spilling out gas and dust. Sometime later, a butterfly-like nebula emerges from the cocoon and develops into a planetary nebula. They are among the most beautiful of the celestial objects imaged by the Hubble Space Telescope. Their structures, like bubbles floating in the void, are complemented by a kaleidoscope of colour emitted by glowing gases. Delicate, lacelike, streamers of gas add to their complexity. The production of a planetary nebula by a star is a milestone in the life of a star, an event that foretells the doom of the star when its central energy source runs out. In this book, Sun Kwok tells the story of the discovery process of the creation of planetary nebulae and of the future of the Sun. Full colour illustrations are included throughout the book.

The Physics and Dynamics of Planetary Nebulae

1997-04-17 Science
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Release : 1997-04-17
Genre : Science
Kind : eBook
Book Rating : 650/5 ( reviews)

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Book Synopsis The Physics and Dynamics of Planetary Nebulae by : Grigor A. Gurzadyan

Download or read book The Physics and Dynamics of Planetary Nebulae written by Grigor A. Gurzadyan. This book was released on 1997-04-17. Available in PDF, EPUB and Kindle. Book excerpt: Planetary nebulae are the classic subject of astrophysics. The physical pro cesses occurring in this highly ionized gaseous medium, the formation of emis sion lines in clearly specified conditions, the continuous emission extending from the far ultraviolet up to infrared and radio frequencies, the generation of exotic forms of radiation predicted by atomic physics, along with methods for deciphering the observed spectra and detecting physical and kinematic parameters of the radiating medium, etc. - all these problems form the solid foundations of the physical theory of gaseous nebulae. They are an essential part of the arsenal of powerful tools and concepts without which one cannot imagine understanding and interpreting the enormous diversity of processes taking place in the Universe - in gaseous envelopes surrounding the stars of various classes, from cool dwarfs and flare stars up to hot supergiants, as well as in stellar chromospheres and coronae, in atmospheres of unstable and anomalous stars, in circumstellar clouds and gaseous shells born in nova and supernova explosions, in diffuse nebulae and the interstellar medium, in interacting binary systems, in galaxies with emission lines, in quasars, etc. The last thirty years have seen a turning-point in our knowledge concern ing the very nature of planetary nebulae (PNs). The radio emission of PNs was discovered after it was predicted theoretically. On the other hand, the powerful infrared emission discovered both in the continuum and in emission lines was never expected.

An Introduction to Planetary Nebulae

2018-05-25 Science
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Release : 2018-05-25
Genre : Science
Kind : eBook
Book Rating : 602/5 ( reviews)

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Book Synopsis An Introduction to Planetary Nebulae by : Jason J. Nishiyama

Download or read book An Introduction to Planetary Nebulae written by Jason J. Nishiyama. This book was released on 2018-05-25. Available in PDF, EPUB and Kindle. Book excerpt: In this book we will look at what planetary nebulae are, where they come from and where they go. We will discuss what mechanisms cause these beautiful markers of stellar demise as well as what causes them to form their variety of shapes. How we measure various aspects of planetary nebulae such as what they are made of will also be explored. Though we will give some aspects of planetary nebulae mathematical treatment, the main points should be accessible to people with only a limited background in mathematics. A short glossary of some of the more arcane astronomical terms is at the end of the book to help in understanding. Included at the end of each chapter is an extensive bibliography to the peer reviewed research on these objects and I would encourage the reader interested in an even deeper understanding to read these articles.

The Origin and Evolution of Planetary Nebulae

2000-05-25 Medical
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Release : 2000-05-25
Genre : Medical
Kind : eBook
Book Rating : 138/5 ( reviews)

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Book Synopsis The Origin and Evolution of Planetary Nebulae by : Sun Kwok

Download or read book The Origin and Evolution of Planetary Nebulae written by Sun Kwok. This book was released on 2000-05-25. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative volume provides a comprehensive review of the origin and evolution of planetary nebulae. It covers all the stages of their evolution, carefully synthesizes observations from across the spectrum, and clearly explains all the key physical processes at work. Particular emphasis is placed on observations from space, using the Hubble Space Telescope, the Infrared Space Observatory, and the ROSAT satellite. This book presents a thoroughly modern understanding of planetary nebulae, integrating developments in stellar physics with the dynamics of nebular evolution. It also describes exciting possibilities such as the use of planetary nebulae in determining the cosmic distance scale, the distribution of dark matter and the chemical evolution of galaxies. This book provides graduate students with an accessible introduction to planetary nebulae, and researchers with an authoritative reference. It can also be used as an advanced text on the physics of the interstellar medium.

Planetary Nebulae

2012-12-06 Science
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Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 334/5 ( reviews)

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Book Synopsis Planetary Nebulae by : Stuart R. Pottasch

Download or read book Planetary Nebulae written by Stuart R. Pottasch. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to give a detailed description of the planetary nebulae including the relevant astronomical observations and their interpretation. Considerable attention is given to the evolution of these objects as well as to their physical characteristics. I t is hoped that the book be useful to both advanced research workers and to students with some background in astronomy. In this regard, the book should serve as a text as well as a reference work. The many tables included are expected to be useful for both purposes. The references are generally not included in the text except for historical purposes in an effort to improve readability. References are given at the end of each chapter together with sufficient text to describe their content. No attempt has been made to make the list of references complete; on the contrary it has generally been limited to the most recent literature on the subject which in turn refers to earlier research. Again, exceptions have been made for references of historical interest.

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