Astrophysics

For almost three decades since Mariner 2 flew by the planet in December 1962, Venus has been the subject of intense investigation by both the Soviet and American space programs.

The European Workshop on White Dwarfs was initiated by Prof.

The origin of stars is one of the principle mysteries of nature.

THE THE KYOTO KYOTO COLLOQUIUM COLLOQUIUM It It has has almost almost become become a a tradition tradition to to periodically periodically review review the the progress progress of of our our knowledge knowledge of of interplanetary interplanetary dust dust at at an an interdisciplinary interdisciplinary level.

This book reports the Proceedings of the NATO Advanced Research Workshop on "e;An- gular Momentum Evolution of Young Stars"e; held from 17 to 21 September 1990 at Noto, Italy.

A few years ago, a motivation for organizing one more IAU Symposium on star for- mation in Grenoble, was the anticipated completion of the IRAM interferometer on the Plateau de Bures, close to Grenoble.

From the beginning of Space Astronomy, the Extreme Ultraviolet band of the spectrum (roughly defined as the decade in energy from 90-900 A) was deemed to be the `unobservable ultraviolet'.

The theory of stellar atmospheres is one of the most important branches of modern astrophysics.

This volume contains the invited papers presented at the NATO Advanced Research Workshop on the Theory of Sunspots, held in Cambridge, England, 22-27 September 1991.

The IAU symposium No.

Classical stellar evolution theories have undergone some drastic changes in recent decades.

Solar flares are very complex electromagnetic phenomena of a cataclysmic nature.

One of the most spectacular discoveries of molecular astronomy has been the detection of maser emission.

Planetary nebulae are a keystone for the understanding of the evolution of stars, for deep insights into the physical processes prevailing in highly excited dilute nebulae, and for the chemical evolution in galaxies.

This textbook is intended as an introduction to the physics of solar and stellar coronae, emphasizing kinetic plasma processes.

The European Workshop on White Dwarfs was initiated by Prof.

The original plans for a meeting to celebrate the second centenary of the As- tronomical Observatory of Palermo were for a celebration with a double character.

Infrared Solar Physics contains the proceedings of the 154th Symposium of the International Astronomical Union held in Tucson, Arizona, March 2--5, 1992.

In the last few years great improvements in the study of stellar jets and bipolar outflows have been achieved, both observationally and theoretically.

In July 1992, over 300 astronomers attended the Third Tetons Summer School on the subject of `The Environment and Evolution of Galaxies'.

Edgard Gunzig and Pasquale Nardone RGGR Universite Libre de Bruxelles CP231 1050 Bruxelles Belgium The NATO Advanced Research Workshop on "e;The Origin of Structure in the Universe"e; was organized to bring together workers in various aspects of relativistic cosmology with the aim of assessing the present status of our knowledge on the formation and evolution of structure.

Observations of the solar magnetic field are largely confined to the radiation emitted from the photosphere, the thin layer of the solar atmosphere which we call "e;the solar surface"e;.

The Medieval Warm Period and the Little Ice Age are widely considered to have been the major features of the Earth's climate over the past 1000 years.

Cosmic electrodynamics is the specific branch of plasma physics which studies electromagnetic phenomena -- mostly the role of electromagnetic forces in dynamics of highly-conducting compressible medium in the solar interior and atmosphere, solar wind, in the Earth's magnetosphere and magnetospheres of other planets as well as pulsars and other astrophysical objects.

Long-term monitoring is of fundamental significance in solving many important problems in astrophysics and, furthermore, has unequalled value in extending observational runs with small telescopes for the education of young astronomers in order to teach them how to secure high-quality observational data over many years.

`Are there other planetary systems like ours?

Prof.

IAU Transactions are published as a volume corresponding to each General Assembly.

Massive stars occupy an exceptional place in general astrophysics.

The nonlinear theory of oscillating systems brings new aspects into the study of variable stars.

In recent years there has been a steadily increasing cross-fertilization between cosmology and particle physics, on both the theoretical and experimental levels.

Summary of the NATO Advanced Research Workshop on Physical Signatures of Magnetospheric Boundary Layer Processes T A POTEMRA, M I PUDOVKIN, R W SMITH, V M VASYLIUNAS and A EGELAND 451 PREFACE These proceedings are based on the invited talks and selected research reports presented at the NATO Advanced Workshop on "e;PHYSICAL SIGNATURES OF MAGNETOSPHERIC BOUNDARY LAYER PROCESSES"e;, held at Sundvolden Hotel, Norway, 9.

In this Symposium, researchers specializing in pulsation, rotation, magnetic fields and stellar winds are brought together for the first time in order to broaden our understanding of O and B stars.

The IAU Colloquium No.

Magnetism is one of the basic properties of matter.

nd The 2 SORO Workshop on "e;Mass Supply and Flows in the Solar Corona"e; was held in Marciana Mariana on the island of Elba, Italy, in the week September 27 to October 1, 1993, as part of a series of workshops planned by the Solar Corona and Particles Working Group of the SOHO Science Working Team (SWT).

Accretion disks in astrophysics represent the characteristic flow by which compact bodies accrete mass from their environment.

An almost complete collection of the papers given at the International Workshop on Imaging in High Energy Astronomy (Anacapri, Italy, 1994).

This special issue of the international journal of cosmic physics, Astrophysics and Space Science, contains invited contributions delivered at the Second IEEE International Workshop on Plasma Astrophysics and Cosmology, held from 10 to 12 May 1993 in Princeton, New Jersey.

The mystery of the diffuse interstellar bands has been variously a curiosity, a co- nundrum, and a nuisance for astronomers in the seven decades since the features were first noticed, but recently they have become a forefront issue in astrophysics.

Cataclysmic Variables (CVs) are well furnished laboratories in which one can investigate a number of important physical processes.

This specialized workshop was conceived during the workshop on "e;Non- isotropic and Variable Outflows from Stars"e;, which was held at the Space Telescope Science Institute in October, 1991.

Freja is a joint Swedish and German satellite, launched on October 6, 1992 and orbiting at 600--1750 km, covering the lower part of the auroral acceleration region.

In this IAU Symposium on Wolf--Rayet stars, binary aspects received ample attention, notably because of the recognition that many observations of spectral and photometric variability at all accessible wavelengths are related to colliding winds or other forms of wind interaction.

The launch in October 1990 of the joint ESA-NASA Ulysses mission marked the start of a new era in the study of the heliosphere.