The theory, observations, and applications ofgravitational lensingconstitute one ofthe most rapidly growing branches ofextragalactic astrophysics. The deflection of light from very distant sources by intervening masses provides a unique possibility for the investigation of both background sources and lens mass distributions. Gravitational lensing manifestsitselfmost distinctly through multiply imaged QSOs and the formation of highly elongated im ages of distant galaxies ('arcs') and spectacular ring-like images of extra galactic radio sources. But the effects of gravitational light deflection are not limited to these prominent image configurations; more subtle, since not directly observable, consequences of lensing are the, possibly strong, mag nification of sources, which may permit observation of intrinsically fainter, or more distant, sources than would be visible without these natural tele scopes. Such light deflection can also affect the source counts of QSOs and of other compact extragalactic sources, and can lead to flux variability of sources owing to propagation effects. Trying to summarizethe theory and observationalstatus ofgravitational lensing in a monograph turned out to be a bigger problem than any of the authors anticipated when we started this project at the end of 1987, encour aged by Martin Harwit, who originally approached us. The development in the field has been very rapid during the last four years, both through the ory and through observation, and many sections have been rewritten several times, as the previous versions became out of date.

Gravitational Lenses (Astronomy and Astrophysics Library)

Peter Schneider

Jürgen Ehlers

Springer, Verlag

Featuring 102 new roses, a guide that reflects the dramatic changes in the market for roses in the past few years includes 392 roses and features heartier varieties to replace disease-prone roses and the new David Austin roses.

Taylor's Guide to Roses (Taylor's Guides to Gardening)

Crafts, Hobbies & Home

Gardening & Landscape Design

Houghton/Mifflin

Reversible Destiny traces the history of the Sicilian mafia to its nineteenth-century roots and examines its late twentieth-century involvement in urban real estate and construction as well as drugs. Based on research in the regional capital of Palermo, this book suggests lessons regarding secretive organized crime: its capacity to reproduce a subculture of violence through time, its acquisition of a dense connective web of political and financial protectors during the Cold War era, and the sad reality that repressing it easily risks harming vulnerable people and communities. Charting the efforts of both the judiciary and a citizen's social movement to reverse the mafia's economic, political, and cultural power, the authors establish a framework for understanding both the difficulties and the accomplishments of Sicily's multifaceted antimafia efforts.

Reversible Destiny: Mafia, Antimafia, and the Struggle for Palermo

History

Jane Schneider

Europe

University of California Press

Line Fence

Amherst Writers & Artists Press

999. Le Livre Du Millenaire Des Maitres Du Fantastique (Romans, Nouvelles, Recits (Domaine Etranger)) (French Edition)

GENE WOLFE

MICHAEL MARSHALL SMITH

Thomas F. Monteleone

Thomas Ligotti

Dennis L. McKiernan

Neil, Gaiman

Edward Bryant

Rick Hautala

Ed. Gorman

Bentley, Little

joe-r-lansdale

Stephen, King

P.D. Cacek

ALBIN MICHEL

Title: Lenz

Rotbuch-Verlag

Rebellion und Wahn: Mein '68

Kiepenheuer & Witsch

Der Mauerspringer Erzahlung

Luchterhand

Der Mauerspringer.

Literature & Fiction

Contemporary

Rowohlt Taschenbuch Verlag GmbH

This book outlines the fundamentals of this fascinating branch of astronomy, and explores the forefront of astronomical research. The author’s passion for the topic shines with an intensity that rivals the book’s many colourful illustrations, and will deeply inspire the reader. The cogently written text introduces the reader to the astronomy of galaxies, their structure, their active galactic nuclei, their evolution and their large scale distribution. Starting with a detailed description of our Milky Way, and a review of modern observational and theoretical cosmology, the book goes on to examine the formation of structures and astronomical objects in the early universe.

Extragalactic Astronomy and Cosmology: An Introduction

Science & Math

Astronomy & Space Science

Springer

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Books by Peter Schneider