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High Quality Content by WIKIPEDIA articles! Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1 mm in size. Cosmic dust can be further distinguished by its astronomical location; for example: intergalactic dust, interstellar dust (potentially concentrated in a nebula), interplanetary dust (such as in a circumstellar disk) and circumplanetary dust (such as in a planetary ring). In our own Solar System, interplanetary dust causes the zodiacal light. Sources include comet dust, asteroidal dust, dust from the Kuiper belt, and interstellar dust passing through our solar system. The terminology has no specific application for describing materials found on the planet Earth, other than in the most general sense that all elements with an atomic mass higher than hydrogen are believed to be formed in the core of stars via stellar nucleosynthesis and supernova events. As such all elements that exist can be indiscriminately considered to be a form of "cosmic dust". ... Read more

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High Quality Content by WIKIPEDIA articles! Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1 mm in size. Cosmic dust can be further distinguished by its astronomical location; for example: intergalactic dust, interstellar dust (potentially concentrated in a nebula), interplanetary dust (such as in a circumstellar disk) and circumplanetary dust (such as in a planetary ring). In our own Solar System, interplanetary dust causes the zodiacal light. Sources include comet dust, asteroidal dust, dust from the Kuiper belt, and interstellar dust passing through our solar system. The terminology has no specific application for describing materials found on the planet Earth, other than in the most general sense that all elements with an atomic mass higher than hydrogen are believed to be formed in the core of stars via stellar nucleosynthesis and supernova events. As such all elements that exist can be indiscriminately considered to be a form of "cosmic dust".

ALL THE BOOK IS FROM WIKIPEDIA.UNFORTUNATELY, THE VAST MAJORITY OF ALPHASCRIPT'S BOOKS ARE NOT SO FORTHCOMING.EXPENSIVE, TOO. DO NOT BUY. ... Read more

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This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone! ... Read more

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Chapters: Interstellar Cloud, Interstellar Medium, Interstellar Formaldehyde, Presolar Grains, Diffuse Interstellar Band, Superbubble, Nh, Local Void, Bonnor-Ebert Mass, Stellar Wind Bubble, Interstellar Reddening, Spinning Dust, Photodissociation Region, Infrared Cirrus, Gw 123.4-1.5. Source: Wikipedia. Pages: 64. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: In astronomy, the interstellar medium (or ISM) is the gas and dust that pervade interstellar space: the matter that exists between the star systems within a galaxy. It fills interstellar space and blends smoothly into the surrounding intergalactic space. The energy that occupies the same volume, in the form of electromagnetic radiation, is the interstellar radiation field. The interstellar medium consists of an extremely dilute (by terrestrial standards) mixture of ions, atoms, molecules, larger dust grains, cosmic rays, and (galactic) magnetic fields. The matter consists of about 99% gas and 1% dust by mass. Densities range from a few thousand to a few hundred million particles per cubic meter with an average value in the Milky Way Galaxy of a million particles per cubic meter (1 atom per cubic centimeter). The Sun, for example, is presently traveling through the Local Interstellar Cloud (0.1 atoms/cc), within the Local Bubble (0.05 atoms/cc). As a result of primordial nucleosynthesis, gas in the ISM is roughly 89% hydrogen and 9% helium and 2% elements heavier than hydrogen or helium by number of protons, with additional heavier elements ("metals" in astronomical parlance) present in trace amounts. The ISM plays a crucial role in astrophysics precisely because of its intermediate role between stellar and galactic scales. Stars form within the densest regions of the ISM, molecular clouds, and replenish the ISM with matter and energ...More: http://booksllc.net/?id=69453 ... Read more

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Here for the first time is a book that treats practically all aspects of modern research in interstellar matter astrophysics. 20 review articles and 40 carefully selected and refereed papers give a thorough overview of the field and convey the flavor of enthusiastic colloquium discussions to the reader. The book includes sections on: - Molecular clouds, star formation and HII regions - Mechanical energy sources - Discs, outflows, jets and HH objects - The Orion Nebula - The extragalactic interstellar medium - Interstellar matter at high galactic latitudes - The structure of the interstellar medium ... Read more

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High Quality Content by WIKIPEDIA articles! Star formation is the process by which dense parts of molecular clouds collapse into a ball of plasma to form a star. As a branch of astronomy star formation includes the study of the interstellar medium and giant molecular clouds (GMC) as precursors to the star formation process and the study of young stellar objects and planet formation as its immediate products. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function. ... Read more

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Interstellar medium. List of molecules in interstellar space, Diffuse interstellar band, Photodissociation region, Astrophysical maser, Interplanetary medium, Local Interstellar Cloud, Heliosphere, Solar System, Outer space, Star system, Timeline of knowledge about the interstellar and intergalactic medium ... Read more

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High Quality Content by WIKIPEDIA articles! A protostar is a large object that forms by contraction out of the gas of a giant molecular cloud in the interstellar medium. The protostellar phase is an early stage in the process of star formation. For a one solar-mass star it lasts about 100,000 years. It starts with a core of increased density in a molecular cloud and ends with the formation of a T Tauri star, which then develops into a main sequence star. This is heralded by the T Tauri wind, a type of super solar wind that marks the change from the star accreting mass into radiating energy. ... Read more

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The book has no illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from the publisher's website (GeneralBooksClub.com). You can also preview excerpts of the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Title: Local Interstellar Medium : International Astronomical Union Colloquium Number 81 : Proceedings of a Colloquium Held at the University of Wisconsin, Madison, Wisconsin, June 4-6, 1984; Original Publisher: Washington, D.C. : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va. : For sale by National Technical Information Service; Publication date: 1984; Subjects: Interstellar matter; X-ray astronomy; Ultraviolet astronomy; Interstellar medium; ... Read more