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Photopolarimetric remote sensing is vital in fields as diverse as medical diagnostics, astrophysics, atmospheric science, environmental monitoring and military intelligence. The areas considered here include: radiative transfer; dynamic systems; backscatter polarization; biological systems; astrophysical phenomena; comets; and instrumentation. Subtopics include observational information including determining morphology and chemistry, light-scattering models, and characterization methodologies. While this introductory text highlights the latest advances in this multi-disciplinary topic, it is also a reference guide for the advanced researcher.
Solid particles are followed from their creation through their evolution in the Galaxy to their participation in the formation of solar systems like our own, these being now clearly deduced from observations by the Hubble Space Telescope as well as by IR and visual observations of protostellar disks, like that of the famous Beta Pictoris object. The most recent observational, laboratory and theoretical methods are examined in detail. In our own solar system, studies of meteorites, comets and comet dust reveal many features that follow directly from the interstellar dust from which they formed. The properties of interstellar dust provide possible keys to its origin in comets and asteroids and its ultimate origin in the early solar system. But this is a continuing story: what happens to the solid particles in space after they emerge from stellar sources has important scientific consequences since it ultimately bears on our own origins - the origins of solar systems and, especially, of our own earth and life in the universe.
A comprehensive review of state-of-the-art techniques, models and research methods in modern astronomical polarimetry.
Tunneling reactions in chemistry are characterized by the low-temperature limit when the classical contribution is negligible. Many practical applications benefit from the lack of heat and have a deep physical basis. Interesting advantages of chemical synthesis at low temperatures have also been demonstrated. This book covers fundamental and practical aspects of the processes and experimental and theoretical methods used in the field. The chapters are written by leading scientists who have very strong experience in the selected topics, and many practical recommendations can be found in this book.
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"Hosted by Gemini Observatory during the week of November 3-8 in Hawaii. Called 'The Central 300 Parsecs, ' the conference was sponsored by several observatories on Mauna Kea to stimulate discussions on the galactic core. The conference was held at the Keauhou Beach Resort in Kailua-Kona, on the west side of the Big Island."-
Annotation The proceedings of the 50th International Meeting of Physical Chemistry, held in Mont Sainte-Odile, France, September 1993, comprise some 100 contributions in the areas of: observation data and modelsfrom millimeter to optical wavelengths, from diffuse clouds to comets; structure and photon-induced dynamics of small molecular systems; collisions and reactivity; and ices and carbonaceous materials in grains and on surfaces. For small systems there is evidence of marked advances in the millimeter range, in quantum chemistry, and the gathering of an impressive number of fresh data, far from being all interpreted. Nearly 100 neutral or ionic species have already been identified. No subject index. Annotation c. by Book News, Inc., Portland, Or.
The optics of small particles are useful in the interpretation of observational phenomena related to extinction, scattering and emission of radiation by dust grains in space. This review presents three components of dust modelling: Optical constants; Light scattering theories and models. The author aims to show how the general laws of the optics of dust particleswork and to highlight the information about cosmic dust. Part II will be dedicated to the consideration of scattered radiation, dust absorption and emission, radiation pressure and dust properties.