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Full Description
This volume consists of invited lectures and seminars presented at the NATO Advanced Study Institute "The Infrared and Submillimetre Sky after COBE", which was held at the Centre de Physique Theorique of Les Houches (France) in March 1991. The school has been planned by a Scientific Organizing Committee. It was organized with the aim of providing students and young researchers with an up-to-date account of the Cosmic Microwave Background, the Cosmic Infrared Background (if any), and the infrared emission of the Galaxy, after the early results from COBE (Cosmic Background Explo- rer). It was attended by about sixty researchers from many countries. The lectures and seminars represent a complete coverage of our present knowledge and understanding of: the Early Universe, Large-Scale Structure, Dust in Galaxies, Infrared to Submillimetre Backgrounds, CMB Anisotropies, complementary observations and instrumentation problems, etc. Most of these lectures are reproduced in this volume. Unfortunately, a few lecturers have chosen not to submit their manuscript.
I would like to express my gratitude to the Scientific Affairs Division of NATO (North Atlantic Treaty Organization) and to the Theoretical Physics and Astrophysics Sections of the CNRS (Centre National de la Re- cherche Scientifique) for their generous support. Further help was obtain- ed from the DRET (Direction des Recherches, Etudes et Techniques), the CNES (Centre National d'Etudes Spatiales) and the IN2P3 (Institut Natio- nal de Physique Nuc1eaire et de Physique des Particules), which I hereby gratefully acknowledge.
Contents
I. Introductory Lecture.- An Overview of the Cosmic Background Explorer (COBE) and its Observations: New Sky Maps of the Early Universe.- II. The Early Universe.- Strings, Gravity, and the Constants of Nature.- First-Order Inflation.- Inflation, Great Attractor and Anisotropies of the Relic Radiation.- String Theory in Cosmology.- Cosmic Strings: An Introduction to their Formation, Evolution, and their Microwave Background Signature.- The Cosmic Microwave Background Radiation.- The Spectral Distortions of the Cosmic Microwave Background Radiation, LEP and Heavy Neutrinos.- Dark Matter Candidates and Methods for Detecting Them.- Fluctuations and Anisotropies in Integrated Backgrounds.- The Thermal History of the Cosmological Gas.- III. Infrared to Submillimetre Backgrounds.- Sources of Cosmic Infrared-Submillimetre Background Radiation.- Preliminary Results from the FIRAS and DIRBE Experiments on COBE.- Submm Emission from Galaxies and Quasars.- Infrared Emission from the Galaxy.- IV. Anisotropies of the CMB.- Linear and Non-linear Gravitational Effects on the CMB Anisotropy.- Statistics of the CMB Maps.- CMB and Galactic Maps in the Millimetric Region.- COBE DMR Results and Implications.- Cosmic Background Anisotropies in the Millimetric Region.- Upper Limits on the CMB Variation from 1300 µm Observations.- V. Instrumentation.- Mapping the Sky with the COBE Differential Microwave Radiometers.- Fundamental and Practical Limits to the Sensitivity of Submillimeter Astronomical Observations.- Observations at (Sub)millimetre Wavelengths: Effect of Atmosphere and Telescope Sidelobes.- VI. Conclusion.- Early Measurements of the CMB.- Summary of Meeting.- Author Index.
