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Variability of Blazars
Blazars (also known as BL Lac objects), first discovered in 1978, are unusually energetic objects in the extragalactic universe. About 200 are known or suspected. They are radio sources with highly variable optical and radio emission, as well as high polarisation, and their optical spectra normally have no distinguishable features. It is generally accepted that they belong to that class of galaxies with active galactic nuclei, which are presumed to be driven by infall of matter to a supermassive black hole. In this book researchers give a complete summary of the observations of blazars and the theoretical interpretation. A comprehensive listing of confirmed and candidate objects is included. Mechanisms in which the variability can arise from shocks and relativistic jets are discussed. There are at least four different answers given to the question: what is a blazar? This book is a complete overview of the violent activity observed in these extreme active galactic nuclei.
Cosmological Enigmas
Author Mark Kidger weaves together history, science, and science fiction to consider questions about the bigness of space and the strange objects that lie trembling at the edge of infinity. Reflecting on how stars shine and what may lie beyond the edge of the universe, Kidger takes readers on the ultimate cosmic journey.Johns Hopkins University Press
ARISE
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The Few Body Problem
th Coinciding with the 300 anniversary of the publication of Newton's Principia The International Astronomical Union organized the colloquium No. 96 "The Few Body Problem" in Turku, Finland, June 14.-19.1987. It provided an opportunity to review the progress in the very field which caused Newton a headache, as Victor Szebehely reminded the audience in his introductory remarks. It is a measure of the difficulty and complication of the few body problem that even after 300 years so many aspects of the problem are still unsolved. To quote Szebehely again, "Sir Isaac established the rules, Poincare presented the challenges". Many of these challenges are reviewed in the present proceedings. The gr...
Magic Universe
This is a marvellously engaging tour covering the whole of modern science, from transgenic crops to quantum tangles. Written by one of the most experienced and well-known names in science writing, it is also assuredly reliable science. Although arranged for convenience and quick reference as a collection of topics in alphabetical order, it is very different from any conventional encyclopedia. Each topic tells a story, making the book eminently browsable. Packed with information, yet carrying its immense learning lightly, this is a book that would appeal to anyone with the slightest interest in how the world works.
Fifty Years of Quasars
Formatted as a series of interviews with noted researchers in the field, this book reviews the history of quasar research and describes how advances in instrumentation and computation have aided quasar astronomy and changed our basic understanding of quasars.
Affective Formation of Publics
This book offers an interdisciplinary analysis of current formations of publics that is informed by in-depth knowledge of affect and emotion theory. Using empirical case studies from contexts as diverse as India, Pakistan, Tanzania, and the Americas as well as Europe, the book challenges dichotomous distinctions between private and public. Instead, publics are understood as a relational structure that encompasses both people and their physical and mediatized environment. While each kind of public is affectively constituted, the intensity of its affective attunement varies considerably. The volume is aimed at academic readers interested in understanding the dynamic and fluid forms of contemporary formation of publics—be it digital or face-to-face encounters as well as in the intersection of both forms. This includes researchers from media and communication studies, social anthropology, theatre or literary studies. It is aimed at advanced students of these disciplines who are interested in the unfolding of contemporary publics.
The Beggar & the Hare
In the vein of Unlikely Pilgrimage of Harold Fry and The Hundred Year Old Man, a hugely entertaining satirical tale, at once humorous and profound, about a Romanian beggar living on the streets of Helsinki. A modern-day rewriting of the popular Finish parable "The Year of the Hare" by Arto Paasilinna Vatanescu, a young Romanian construction worker, desires two things: a future for himself and a pair of football boots for his son. So off he goes to a cold, dark country to beg. Despite reading about Finland in the novels of Arto Paasilinna, Vatanescu has no idea what he is in for, and soon he is living on the streets of Helsinki, throwing feasts from the contents of a dumpster with his fellow ...
Dynamics of Astrophysical Discs
Covers recent developments in both theory and observations of discs in a wide variety of astrophysical contexts. The volume is based on a conference held at the University of Manchester in 1988, which brought together an international group of experts in a wide range of fields. The papers cover planetary ring systems, discs in star-forming regions, protoplanetary discs, accretion and galaxy discs--areas related by the remarkable similarity between the dynamical problems posed by each type of disc. This will be a valuable reference work for researchers and postgraduate students in many branches of astronomy.
