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Shapes And Dynamics Of Granular Minor Planets
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Book Synopsis Shapes and Dynamics of Granular Minor Planets by : Ishan Sharma
Download or read book Shapes and Dynamics of Granular Minor Planets written by Ishan Sharma and published by Springer. This book was released on 2016-11-01 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book develops a general approach that can be systematically refined to investigate the statics and dynamics of deformable solid bodies. These methods are then employed to small bodies in the Solar System. With several space missions underway and more being planned, interest in our immediate neighbourhood is growing. In this spirit, this book investigates various phenomena encountered in planetary science, including disruptions during planetary fly-bys, equilibrium shapes and stability of small rubble bodies, and spin-driven shape changes. The flexible procedure proposed here will help readers gain valuable insights into the mechanics of solar system bodies, while at the same time complementing numerical investigations. The technique itself is built upon the virial method successfully employed by Chandrasekhar (1969) to study the equilibrium shapes of spinning fluid objects. However, here Chandrasekhar’s approach is modified in order to study more complex dynamical situations and include objects of different rheologies, e.g., granular aggregates, or “rubble piles”. The book is largely self-contained, though some basic familiarity with continuum mechanics will be beneficial.
Book Synopsis Investigations on the Dynamics of Minor Planets with Gaia by : Serge Mouret
Download or read book Investigations on the Dynamics of Minor Planets with Gaia written by Serge Mouret and published by . This book was released on 2007 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ESA astrometric mission Gaia, due for a launch in 2011, will observe 350,000 asteroids brighter than V = 20 with an unprecedented positional precision (at the sub-milliarcsecond level for single observation). The aim of this thesis is the investigation of the science that Gaia will allow with such precise observations of asteroids and the elaboration of reduction methods for treating this future huge pool of data, in particular regarding mass determination. In the first part, we relate the characteristics of the Gaia mission and the state-of-the-art of the current asteroid mass determination. The second part describes the selection of the interesting close approaches between the few massive asteroids (perturbers) and numerous smaller asteroids (targets) in order to analyse the resulting orbital perturbations and thus, to derive the masses of the perturbers from global processing detailed in the third chapter. The expected number of asteroid masses and their associated precisions are given from realistic simulated data between 2011 and 2016. Besides, the expected precisions on the orbital elements of the targets are presented. The fourth and fifth chapters open tracks on the fundamental science from the asteroid positions with the possible derivation of the solar quadrupole moment J2, the PPN parameters β, γ, the Nordtvedt parameter η, the variation of the gravitational constant dG/dt and a study of the so-called Yarkovsky effect. The two last chapters illustrate the contribution of asteroid mass determination by Gaia to several fields of the astronomy through a study about the perturbers of Mars and the hypothetical law between density and taxonomic class.
Download or read book Asteroids IV written by Patrick Michel and published by University of Arizona Press. This book was released on 2015-12-31 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: "More than forty chapters detail our current astronomical, compositional, geological, and geophysical knowledge of asteroids, as well as their unique physical processes and interrelationships with comets and meteorites"--Provided by publisher.
Book Synopsis Dictionary of Minor Planet Names by : Lutz Schmadel
Download or read book Dictionary of Minor Planet Names written by Lutz Schmadel and published by Springer Science & Business Media. This book was released on 2003-08-05 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dictionary of Minor Planet Names, Fifth Edition, is the official reference for the field of the IAU, which serves as the internationally recognised authority for assigning designations to celestial bodies and any surface features on them. The accelerating rate of the discovery of minor planets has not only made a new edition of this established compendium necessary but has also significantly altered its scope: this thoroughly revised edition concentrates on the approximately 10,000 minor planets that carry a name. It provides authoritative information about the basis for all names of minor planets. In addition to being of practical value for identification purposes, this collection provides a most interesting historical insight into the work of those astronomers who over two centuries vested their affinities in a rich and colorful variety of ingenious names, from heavenly goddesses to more prosaic constructions. The fifth edition serves as the primary reference, with plans for complementary booklets with newly named bodies to be issued every three years.
Book Synopsis Development of a Numerical Simulation Method for Rocky Body Impacts and Theoretical Analysis of Asteroidal Shapes by : Keisuke Sugiura
Download or read book Development of a Numerical Simulation Method for Rocky Body Impacts and Theoretical Analysis of Asteroidal Shapes written by Keisuke Sugiura and published by Springer Nature. This book was released on 2020-03-17 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes numerical simulations of collisions between asteroids, based on a unique numerical code developed by the author. The code accurately solves the elastic dynamic equations and describes the effects of fracture and friction, which makes it possible to investigate the shapes of impact outcomes produced by asteroid collisions and subsequent gravitational accumulation of fragments. The author parallelizes the code with high parallelization efficiency; accordingly, it can be used to conduct high-resolution simulations with the aid of supercomputers and clarify the shapes of small remnants produced through the catastrophic destruction of asteroids. The author demonstrates that flat asteroids can only be produced by impacts involving objects with similar mass and low velocity, which suggests that the flat asteroids in our solar system were created in the planet formation era and have kept their shapes until today. The author also shows that asteroid collisions under certain conditions can produce the extremely elongated shape of an interstellar minor body, 1I/‘Oumuamua. In brief, the book offers a comprehensive investigation of asteroid impacts and shapes, making it a uniquely valuable resource.
Author :William Frederick Bottke Publisher :University of Arizona Press ISBN 13 :9780816522811 Total Pages :818 pages Book Rating :4.5/5 (228 download)
Book Synopsis Asteroids III by : William Frederick Bottke
Download or read book Asteroids III written by William Frederick Bottke and published by University of Arizona Press. This book was released on 2002-01-01 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two hundred years after the first asteroid was discovered, asteroids can no longer be considered mere points of light in the sky. Spacecraft missions, advanced Earth-based observation techniques, and state-of-the-art numerical models are continually revealing the detailed shapes, structures, geological properties, and orbital characteristics of these smaller denizens of our solar system. This volume brings together the latest information obtained by spacecraft combined with astronomical observations and theoretical modeling, to present our best current understanding of asteroids and the clues they reveal for the origin an,d evolution of the solar system. This collective knowledge, prepared by a team of more than one hundred international authorities on asteroids, includes new insights into asteroid-meteorite connections, possible relationships with comets, and the hazards posed by asteroids colliding with Earth. The book's contents include reports on surveys based on remote observation and summaries of physical properties; results of in situ exploration; studies of dynamical, collisional, cosmochemical, and weathering evolutionary processes; and discussions of asteroid families and the relationships between asteroids and other solar system bodies. Two previous Space Science Series volumes have established standards for research into asteroids. Asteroids III carries that tradition forward in a book that will stand as the definitive source on its subject for the next decade.
Book Synopsis The System of Minor Planets by : Gunter Dietmar Roth
Download or read book The System of Minor Planets written by Gunter Dietmar Roth and published by . This book was released on 2003-01-01 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crush It on LinkedIn by : Visthruth G
Download or read book Crush It on LinkedIn written by Visthruth G and published by . This book was released on 2020-07-11 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: LinkedIn is one of the fastest growing social media and it is THE place for professionals and people looking to advance in their career. Crush It on LinkedIn is your guide on how to use LinkedIn effectively to build your brand, get a job, or expand your business.Here's what you'll learn from this book: How to make a stunning LinkedIn Profile that gets viewed by people on the platformHow to grow your LinkedIn profile and get noticed by people in your niche.How to create content on LinkedIn that helps you build your brand.How to talk to people effectively using the private messagingMistakes you are doing on LinkedIn that is affecting your profileAn overview of LinkedIn Advertising, Lead generation and which Businesses should use itRecent additions in 2020 and the future of this platformSuccess Stories of People who used LinkedIn to build a brand.and a lot more in this short and concise book.You'll learn these topics with multiple examples.This is a MUST have book for students in college who want to get their first internship or job. The book explains everything from the ground up.The author, Ishan Sharma is a 19 year old student at BITS Goa. He has his own YouTube Channel and a podcast with over 130k views and he helps create content for startups on social media platforms like Instagram and LinkedIn.With this book, Ishan aims to share his experiences of using LinkedIn to get new opportunities and from his talks with people who've been using LinkedIn from the last 5-7 years
Book Synopsis Tables of Minor Planets Discovered by James C. Watson by : Armin Otto Leuschner
Download or read book Tables of Minor Planets Discovered by James C. Watson written by Armin Otto Leuschner and published by Hardpress Publishing. This book was released on 2012 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
Author :Ludwik Marian Celnikier Publisher :Atlantica Séguier Frontières ISBN 13 :9782863322376 Total Pages :576 pages Book Rating :4.3/5 (223 download)
Book Synopsis Planetary Systems by : Ludwik Marian Celnikier
Download or read book Planetary Systems written by Ludwik Marian Celnikier and published by Atlantica Séguier Frontières. This book was released on 1998 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dictionary of Minor Planet Names by : Lutz D. Schmadel
Download or read book Dictionary of Minor Planet Names written by Lutz D. Schmadel and published by Springer. This book was released on 1992 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to a long-standing astronomical tradition, the naming of minor planets in the solar system is the privilege of the discoverers. Contrary to most other kinds of celestial objects which receive complex alpha-numerical designations, the names of minor planets often say more about the discoverers than about the object in question. There is a rich and colourful variety of ingenious names, from those of heavenly goddesses in the nineteenth century, to the more prosaic and sometimes very specific names of observatories, towns and mountains, computers and persons, given by present-day discoverers. Commission 20 of the International Astronomical Union, under whose auspices the naming of minor planets falls, has long been concerned with the need to establish a complete catalogue of these names, as well as of the interpretation of their meanings. For this purpose, a Study Group on the Origin of Minor Planet Names was set up at the time of the IAU General Assembly in Baltimore in August 1988. The Working Group immediately started to collect information about these matters from all available sources, including some earlier, incomplete compilations made in the U.S. and in Europe, and also by personal interaction with living discoverers of minor planets.
Book Synopsis Hyper-Velocity Impacts on Rubble Pile Asteroids by : Jakob Deller
Download or read book Hyper-Velocity Impacts on Rubble Pile Asteroids written by Jakob Deller and published by Springer. This book was released on 2016-12-01 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis presents a tool to create rubble pile asteroid simulants for use in numerical impact experiments, and provides evidence that the asteroid disruption threshold and the resultant fragment size distribution are sensitive to the distribution of internal voids. This thesis represents an important step towards a deeper understanding of fragmentation processes in the asteroid belt, and provides a tool to infer the interior structure of rubble pile asteroids. Most small asteroids are 'rubble piles' – re-accumulated fragments of debris from earlier disruptive collisions. The study of fragmentation processes for rubble pile asteroids plays an essential part in understanding their collisional evolution. An important unanswered question is “what is the distribution of void space inside rubble pile asteroids?” As a result from this thesis, numerical impact experiments can now be used to link surface features to the internal structure and therefore help to answer this question. Applying this model to asteroid Šteins, which was imaged from close range by the Rosetta spacecraft, a large hill-like structure is shown to be most likely primordial, while a catena of pits can be interpreted as evidence for the existence of fracturing of pre-existing internal voids.
Book Synopsis Small Bodies in Planetary Systems by : Ingrid Mann
Download or read book Small Bodies in Planetary Systems written by Ingrid Mann and published by Springer. This book was released on 2009-03-01 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: The small bodies in planetary systems are indicative of the material evo- tion, the dynamical evolution, and the presence of planets in a system. Recent astronomicalresearch,spaceresearch,laboratoryresearch,andnumericals- ulationsbroughtawealthofnewandexciting?ndingsonextra-solarplanetary systems and on asteroids, comets, meteoroids, dust, and trans-Neptunian - jects in the solar system. Progress in astronomical instrumentation led to the discovery and investigation of small bodies in the outer solar system and to observations of cosmic dust in debris disks of extra-solar planetary systems. Space research allowed for close studies of some of the small solar system bodies from spacecraft. This lecture series is intended as an introduction to the latest research results and to the key issues of future research. The ch- ters are mainly based on lectures given during a recent research school and on research activities within the 21st Century COE Program “Origin and Evolution of Planetary Systems” at Kobe University, Japan. In Chap. 1, Taku Takeuchi discusses the evolution of gas and dust from protoplanetary disks to planetary disks. Using a simple model, he studies v- cous evolution and photoevaporation as possible mechanisms of gas dispersal. He further considers how the dust grows into planetesimals. Motion of dust particles induced by gas drag is described, and then using a simple analytic model, the dust growth timescale is discussed.
Book Synopsis Physics of Soft Impact and Cratering by : Hiroaki Katsuragi
Download or read book Physics of Soft Impact and Cratering written by Hiroaki Katsuragi and published by Springer. This book was released on 2015-10-07 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the impact dynamics and cratering of soft matter to describe its importance, difficulty, and wide applicability to planetary-related problems. A comprehensive introduction to the dimensional analysis and constitutive laws that are necessary to discuss impact mechanics and cratering is first provided. Then, particular coverage is given to the impact of granular matter, which is one of the most crucial constituents for geophysics. While granular matter shows both solid-like and fluid-like behaviors, neither solid nor fluid dynamics is sufficient to fully understand the physics of granular matter. In order to reveal its fundamental properties, extensive impact tests have been carried out recently. The author reveals the findings of these recent studies as well as what remains unsolved in terms of impact dynamics. Impact crater morphology with various soft matter impacts also is discussed intensively. Various experimental and observational results up to the recent Itokawa asteroid’s terrain and nanocrater are reviewed and explained mainly by dimensional analysis. The author discusses perspectives of the relation between soft matter physics and planetary science, because it is an important step towards unifying physics and planetary science, in both of which fields crater morphology has been studied independently.
Book Synopsis Planetary Defense by : Nikola Schmidt
Download or read book Planetary Defense written by Nikola Schmidt and published by Springer. This book was released on 2018-12-26 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planetary defense from near-Earth objects such as asteroids is a far more nuanced and challenging topic than it might seem. Each day, technology is making it easier to detect asteroid impact threats in advance, but at present, there is still no easy way to design and implement any form of global defense. This book examines how various asteroid deflection methods can change global political affairs. The authors believe that the final policy for potential Earth impacts should be based on practical engineering solutions and innovative architectural structures, while at the same time reflecting the most recent political science contributions in ethical security studies and security cosmopolitanism. Their focus is not limited to effective engineering solutions, but rather extends to how such proposals resonate in possible political structures of the future. Planetary defense cannot be achieved with technology alone; the chapters in this volume highlight the issues that arise when space science and technology intersect with political science. This complex interdisciplinary project not only demands global participation and collaboration, but also proposes the way we can achieve it. The authors explore various concepts of governance and their far-reaching implications for planetary defense and vice versa—how scientific progress in Solar System observations and asteroid collision engineering influence political science and put pressure on the international legal framework. The text is intentionally written for a diverse scholarly and diplomatic audience in a style accessible to non-specialists and practitioners and can be read by those across diverse disciplinary backgrounds.
Book Synopsis Rotational Dynamics of Deformable Ellipsoids with Applications to Asteroids by : Ishan Sharma
Download or read book Rotational Dynamics of Deformable Ellipsoids with Applications to Asteroids written by Ishan Sharma and published by . This book was released on 2004 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Planetary Ring Systems by : Matthew S. Tiscareno
Download or read book Planetary Ring Systems written by Matthew S. Tiscareno and published by Cambridge University Press. This book was released on 2018-03-22 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planetary rings are among the most intriguing structures of our solar system and have fascinated generations of astronomers. Collating emerging knowledge in the field, this volume reviews our current understanding of ring systems with reference to the rings of Saturn, Uranus, Neptune, and more. Written by leading experts, the history of ring research and the basics of ring–particle orbits is followed by a review of the known planetary ring systems. All aspects of ring system science are described in detail, including specific dynamical processes, types of structures, thermal properties and their origins, and investigations using computer simulations and laboratory experiments. The concluding chapters discuss the prospects of future missions to planetary rings, the ways in which ring science informs and is informed by the study of other astrophysical disks, and a perspective on the field's future. Researchers of all levels will benefit from this thorough and engaging presentation.
