Astronomical observation: observatories, equipment and methods

x about a sequence of reVlew lectures, each followed by contributed talks and discussions.

The book aims to present current knowledge concerning the propagation of electro- magnetic waves in a homogeneous magnetoplasma for which temperature effects are unimportant.

This volume is the product of Lecturers in the fourth Course of the International School of Cosmic-Ray Astrophysics held at the Ettore Majorana Center in Erice, Sicily in November, 1984.

PROCEEDINGS IAU S)1WOSIUM 112 Michael D.

On the occasion of the International Conference on Cosmic Rays held in Kyoto in August 1979 five aged members of the cosmic ray fraternity, H.

and In the IAU Symposium of 1979 devoted to interstellar molecules [8].

Red giant and supergiant stars have long been favorites of professional 6 and amateur astronomers.

This book is the proceedings of a workshop on stellar continuum radio astronomy that was held in BoUlder, Colorado on August 8-10, 1984.

It is this editor's distinct pleasure to offer to the readership the text of the lectures presented at our recent NATO Advanced Study Institute held in Cortina d'Ampezzo, Italy between August 6 and August 17, 1984.

volume XIX A of IAU Transactions contains the reports by Presidents of Commissions, covering the period July 1981 - June 1984.

Spectral line formation theory is at the heart of astrophysical diagnostic.

Peter P.

The emphasis in these proceedings of lAD Symposium No.

The Alexander von Humboldt Colloquium on Celestial Mechanics (sub- titled "e;The Stability of Planetary Systems"e;) was held in Ramsau, Styria, in the Austrian Alps, from March the 25th to the 31st, 1984.

In June 1983 the Astronomical Institute of the State University of Groningen, founded by Kapteyn about 100 years ago, celebrated its one-hundredth anniversary.

This volume contains papers presented at IAU Colloquium No.

It was a general feeling among those who attended the NATO / ARW meeting on the Galaxy Distances and Deviations from Universal Expansion, that during the week in Hawaii a milestone had been passed in work on the distance scale.

If you want to understand the invisible, look careful at the visible.

"e;Fundamental Astronomy and Solar System Dynamics"e;, a program of invited papers honoring Professor Walter Fricke, who for thirty years has been Director of the Astronomisches Rechen lnstitut in Heidelberg, was held at the Thompson Conference Center of the University of Texas at Austin on Wednesday 27 March 1985 on the occasion of his seventieth birthday and retirement as Director of ARl.

'Light on Dark Matter', held from 10-14 June 1985 in the Dutch seaside resort of Noordwijk, was the first international conference devoted to the results of the all-sky survey by the US-Dutch-UK Infra-Red Astronomical Satellite (IRAS).

As it was said by one of the participants to this workshop"e; In our attempts to understand the spectral evolution of galaxies, we are fortunate indeed to have the ability to look back in time and observe galaxies as they were billions of years ago.

The idea to hold a conference on the Evolution of Close-Binary X-ray sources grew in the summer of 1984.

This is a textbook on classical mechanics at the intermediate level, but its main purpose is to serve as an introduction to a new mathematical language for physics called geometric algebra.

This book sets forth and builds upon the fundamentals of the dynamics of natural systems in formulating the problem presented by Jacobi in his famous lecture series "e;Vorlesungen tiber Dynamik"e; (Jacobi, 1884).

The near Infra-Red emission of the Interstellar Medium is a very puzzling subject.

The idea for organl.

The first helium star was discovered in 1942, the first scientific meeting on the subject, however, took place in 1985.

The XIXth General Assembly of the International Astronomical Union was held in New Delhi, India, from November 19 to 28, 1985.

Algol is a triple system containing a 70 hr eclipsing binary (K IV and B8 V) in a 694 day orbit with an A V star.

Since 1976 a meeting devoted to recent research on cataclysmic variables ("e;CV workshop"e;) has been held annually somewhere in North America.

The history of modern helioseismology is only ten years old.

This volume is the documentation of the first Course on 'Neutron Stars, Active Galactic Nuclei and Jets', of an Erice School with a wide astro- physical scope.

The Milky Way Galaxy offers a unique opportunity to study the structure and contents of a major stellar system in three dimensions, at high spatial and spectral resolution, and to very large galactocentric distances.

IAU Symposium 127 was held in Princeton on May 28-31, 1986, at the Institute for Advanced Study.

This book is the result of a meeting held in August, 1986 in Irsee, West Germany.

On April 28 1986 Cornelis de Jager reached the age of 65 years.

An Advanced Research Workshop on Very High Energy Gamma Ray Astronomy and Related Topics was held at Durham, England during August 11-15 1986.

Over the last decade we have witnessed a rapid change in our understanding of the late stages of stellar evolution.

Recent advances in observational and theoretical efforts in understanding the nature of cataclysmic variables had reached such maturity that there existed a strong, shared feeling among the workers in this field that an international colloquium sponsored by the International Astronomical Union would be timely.

TH.

The same kind of physics is frequently common to very different fields of Astrophysics, so experts in each of these fields have often much to learn from each others.