The Shapes of Galaxies and Their Dark Halos

The Shapes of Galaxies and Their Dark Halos PDF

Author: Priyamvada Natarajan

Publisher: World Scientific

Published: 2002-03-28

Total Pages: 276

ISBN-13: 9814489395

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This book constitutes the proceedings of a very topical workshop aimed at understanding the shapes of the baryonic and dark matter components of galaxies. Several groups presented their recent results from observations and numerical N-body simulations. Contents:Intrinsic Shapes of GalaxiesShapes from Lensing StudiesDark Matter Halos from N-Body SimulationsShapes Mapped Using Stellar TracersShapes from HI Studies and Polar RingsShapes from Studies of SatellitesConstraints from X-Ray StudiesShapes from Absorption Studies Readership: Graduate students, researchers and academics in astrophysics, astronomy and cosmology. Keywords:Galaxies;Dark Halos

The Shapes of Galaxies and Their Dark Halos

The Shapes of Galaxies and Their Dark Halos PDF

Author: Priyamvada Natarajan

Publisher: World Scientific

Published: 2002

Total Pages: 286

ISBN-13: 9789810248482

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This book constitutes the proceedings of a very topical workshop aimed at understanding the shapes of the baryonic and dark matter components of galaxies. Several groups presented their recent results from observations and numerical N-body simulations.

Spiral Structure in Galaxies

Spiral Structure in Galaxies PDF

Author: Marc S Seigar

Publisher: Morgan & Claypool Publishers

Published: 2017-06-29

Total Pages: 84

ISBN-13: 1681746093

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How does it happen that billions of stars can cooperate to produce the beautiful spirals that characterize so many galaxies, including ours? This book reviews the history behind the discovery of spiral galaxies and the problems faced when trying to explain the existence of spiral structure within them. In the book, subjects such as galaxy morphology and structure are addressed as well as several models for spiral structure. The evidence in favor or against these models is discussed. The book ends by discussing how spiral structure can be used as a proxy for other properties of spiral galaxies, such as their dark matter content and their central supermassive black hole masses, and why this is important.

Galaxy Formation and Evolution

Galaxy Formation and Evolution PDF

Author: Houjun Mo

Publisher: Cambridge University Press

Published: 2010-05-20

Total Pages: 841

ISBN-13: 0521857937

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A coherent introduction for researchers in astronomy, particle physics, and cosmology on the formation and evolution of galaxies.

Gravitational Dynamics

Gravitational Dynamics PDF

Author: Ofer Lahav

Publisher: Cambridge University Press

Published: 1996-07-13

Total Pages: 286

ISBN-13: 9780521563277

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Gravity plays a central role in the dynamics of all astrophysical systems - from stars to the Universe as a whole. This timely volume examines all aspects of gravitational dynamics - from stellar systems and galaxy disks, to the dynamics of the Local Group, large scale structures and motions, galaxy formation and general relativity. Each chapter is written by a world expert renowned for original contributions to the field. The authors are: James Binney, Roger Blandford, David Burstein, Tim de Zeeuw, George Efstathiou, Steve Gull, Nick Kaiser, J. Katz, Donald Lynden-Bell, Ruth Lynden-Bell, Douglas Lin, Jeremiah Ostriker, T. Padmanabhan, J. Papaloizou, Jim Peebles, Jim Pringle, Martin Rees, Maarteen Schmidt, Scott Tremaine and Simon White. This volume provides a broad, pedagogical introduction to gravitational dynamics for graduate students, and an up-to-date review for researchers in cosmology, astrophysics, mathematical physics and applied mathematics.

The Realm of the Nebulae

The Realm of the Nebulae PDF

Author: Edwin Powell Hubble

Publisher: Yale University Press

Published: 1982-01-01

Total Pages: 264

ISBN-13: 9780300025002

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No modern astronomer made a more profound contribution to our understanding of the cosmos than did Edwin Hubble, who first conclusively demonstrated that the universe is expanding. Basing his theory on the observation of the change in distanct galaxies, called red shift, Hubble showed that this is a Doppler effect, or alteration in the wavelength of light, resulting from the rapid motion of celestial objects away from Earth. In 1935, Hubble described his principal observations and conclusions in the Silliman lectures at Yale University. These lectures were published the following year as "The Realm of the Nebulae," which quickly became a classic work.

Galaxy Formation and Evolution

Galaxy Formation and Evolution PDF

Author: Houjun Mo

Publisher: Cambridge University Press

Published: 2010-05-20

Total Pages:

ISBN-13: 1107394104

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The rapidly expanding field of galaxy formation lies at the interface between astronomy, particle physics, and cosmology. Covering diverse topics from these disciplines, all of which are needed to understand how galaxies form and evolve, this book is ideal for researchers entering the field. Individual chapters explore the evolution of the Universe as a whole and its particle and radiation content; linear and nonlinear growth of cosmic structure; processes affecting the gaseous and dark matter components of galaxies and their stellar populations; the formation of spiral and elliptical galaxies; central supermassive black holes and the activity associated with them; galaxy interactions; and the intergalactic medium. Emphasizing both observational and theoretical aspects, this book provides a coherent introduction for astronomers, cosmologists, and astroparticle physicists to the broad range of science underlying the formation and evolution of galaxies.

Gravitational Lensing

Gravitational Lensing PDF

Author: Scott Dodelson

Publisher: Cambridge University Press

Published: 2017-06-08

Total Pages: 245

ISBN-13: 1108161693

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Gravitational lensing is a consequence of general relativity, where the gravitational force due to a massive object bends the paths of light originating from distant objects lying behind it. Using very little general relativity and no higher level mathematics, this text presents the basics of gravitational lensing, focusing on the equations needed to understand the phenomena. It then applies them to a diverse set of topics, including multiply imaged objects, time delays, extrasolar planets, microlensing, cluster masses, galaxy shape measurements, cosmic shear, and lensing of the cosmic microwave background. This approach allows undergraduate students and others to get quickly up to speed on the basics and the important issues. The text will be especially relevant as large surveys such as LSST and Euclid begin to dominate the astronomical landscape. Designed for a one semester course, it is accessible to anyone with two years of undergraduate physics background.