The Local Group is a small cluster of galaxies of which thirty-five members are currently known, including the Milky Way. With characteristic clarity of expression, Sidney van den Bergh provides a complete overview of all that is known about the galaxies of the Local Group and their evolution. He also places this knowledge in the wider context of continuing studies of galaxy formation and evolution, the cosmic distance scale, and the conditions in the early Universe. This volume thoroughly details our current understanding of each of the thirty-five members of the Local Group, as well as those galaxies previously regarded as possible members. The book goes on to examine the mass, stability and evolution of the Local Group as a whole and includes many important, previously unpublished results and conclusions.

This book provides the most complete academic treatment on the application of polytropes ever published. It is primarily intended for students and scientists working in Astrophysics and related fields. It provides a full overview of past and present research results and is an indispensible guide for everybody wanting to apply polytropes.

This thoroughly revised textbook is a basic introduction to plasma phenomena in solar and stellar coronae emphasizing non-MHD aspects. The natural way in which the author unifies observations and theory gives a wide perspective to the subject. An important feature is the lucidly written presentation of the fundamentals of plasma physics. The basic theory thus developed is then extended to some exemplary and important observations of coronal dynamics, such as coronal currents, particle acceleration, propagation of particle beams, and shocks.

In Out of the Blue skywatcher John Naylor offers practical advice about where and when you can expect to see natural phenomena, what you will see and how to improve your chances of seeing it. Naylor takes in both the night and the day sky, and deals only with what can be seen with the naked eye. Drawing on science, history, literature and mythology, and assuming only basic scientific knowledge, Out of the Blue is for everyone who enjoys being outdoors and who feel curious or puzzled about things optical and astronomical.John Naylor was born in England, but spent his childhood in Peru. A graduate of London University with a degree in philosophy, he teaches physics at a secondary school in London.

This book is about the origin questions - the questions of how the planets, the stars, the galaxies, and the Universe itself were formed. These are the biggest questions in astronomy, and in the last decade, there has been a revolution in observational astronomy which has meant that we are very close to answering three of the four big questions. It is therefore a propitious time for this book.

"Marswalk One: First Steps on a New Planet" addresses the question of why we should embark on a journey to Mars, documenting what the first human crew will do when they place their feet in the red dust of the planet. The book also addresses why we need to carry out these tasks and, more importantly, what a human crew could achieve that an automated mission could not. Understanding the clear benefits of sending a human crew to the surface of Mars, and how these benefits can be seen back on Earth, is the key to sustained long-term public and political support for the programme in terms of cash and commitment. The book accepts that the journey will be made, but does not specify precisely when. Flight time, and how to get to and from the planet are discussed briefly, to understand why the suggested duration spent at Mars is reasonable. The main objective of the work is to look at what science will be done on the surface – supported by orbital operations – and what hardware and technology will be employed to achieve the mission objectives. This analysis is drawn from previous experiences in manned and unmanned space programmes, including Apollo, Skylab, Salyut/Mir, Shuttle and ISS, Viking, Luna/Lunokhod, and recent Mars missions such as Pathfinder and Global Surveyor. In addition, new interviews with key personalities involved in planning Martian exploration, and discussions about current thoughts on what we need to accomplish on Mars when we get there, will provide a lively and thought provoking account that could generate fresh debate. When the decision is finally made to go to Mars, it will be made in the knowledge that most of the world knows why we are going and what benefits mankind will see for the effort. The authors’ primary objective is to begin this understanding.

Papers from the Discussion Conference on Recent Advances in General Relativity, held at the U. of Pittsburgh, May 1990, survey the interacting fields of classical general relativity, astrophysics, and quantum gravity. Some of the remarks made following the invited papers are also included. The conference also included three workshops--on classical gravity, quantum gravity, and numerical relativity - which are reported on by their organizers.

This book is intended for amateur astronomers who are readers of Sky & Telescope magazine or similar astronomy periodicals – or are at least at the same level of knowledge and enthusiasm. In particular, those of us who have reached a point where enjoyment is fading because the challenges have run out will appreciate it, because it takes such people to the "next level" in observational astronomy.

This classic text, aimed at senior undergraduates and beginning graduate students in physics and astronomy, presents a wide range of astrophysical concepts in sufficient depth to give the reader a quantitative understanding of the subject. Emphasizing physical concepts, the book outlines cosmic events but does not portray them in detail: It provides a series of astrophysical sketches. For this third edition, nearly every part of the text has been reconsidered and rewritten; new sections have been added to cover recent developments, and most of the rest has been revised and brought up to date.

Black holes and gravitational radiation are two of the most dramatic predictions of general relativity. The quest for rotating black holes - discovered by Roy P. Kerr as exact solutions to the Einstein equations - is one of the most exciting challenges currently facing physicists and astronomers. Gravitational Radiation, Luminous Black Holes and Gamma-Ray Burst Supernovae takes the reader through the theory of gravitational radiation and rotating black holes, and the phenomenology of GRB-supernovae. Topics covered include Kerr black holes and the frame-dragging of spacetime, luminous black holes, compact tori around black holes, and black-hole spin interactions. It concludes with a discussion of prospects for gravitational-wave detections of a long-duration burst in gravitational-waves as a method of choice for identifying Kerr black holes in the Universe. This book is ideal for a special topics graduate course on gravitational-wave astronomy and as an introduction to those interested in this contemporary development in physics.