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The past two decades have observed dramatic advancement in our understanding of the universe. Such progress in turn has triggered further questions yet to be answered. Aspired by such prospects, several institutions dedicated to the research of cosmology have been established in the last decade, which include the Leung Center for Cosmology and Particle Astrophysics (LeCosPA) at the National Taiwan University. To celebrate its 4th anniversary the First LeCosPA Symposium was held in February 2012 at NTU. Internationally renowned physicists and authorities in cosmology, particle astrophysics, gravity and general relativity, and high energy physics convened to survey our present understanding of the universe and to explore the future prospects from both theoretical and experimental perspectives. Topics covered include the detection and the nature of dark matter and dark energy, the fundamental understanding of space, time, mass and gravity itself, cosmological constant and vacuum energy, etc. This book should be valuable to researchers and students in the field of cosmology and particle astrophysics.
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"Molecular line emissions offer researchers exciting opportunities to learn about the evolutionary state of the Milky Way and distant galaxies. This text provides a detailed introduction to molecular astrophysics and an array of useful techniques for observing astronomical phenomena at millimetre and submillimetre wavelengths. After discussing the theoretical underpinnings of molecular observation, the authors catalogue suitable molecular tracers for many types of astronomical regions in local and distant parts of the Universe, including cold gas reservoirs primed for the formation of new stars, regions of active star formation, giant photon-dominated regions and near active galactic nuclei. Further chapters demonstrate how to obtain useful astronomical information from raw telescope data while providing recommendations for appropriate observing strategies. Replete with maps, charts and references for further reading, this handbook will suit research astronomers and graduate students interested in broadening their skill to take advantage of the new facilities now coming online" -- Provided by publisher.
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Molecular line emissions offer researchers exciting opportunities to learn about the evolutionary state of the Milky Way and distant galaxies. This text provides a detailed introduction to molecular astrophysics and an array of useful techniques for observing astronomical phenomena at millimetre and submillimetre wavelengths. After discussing the theoretical underpinnings of molecular observation, the authors catalogue suitable molecular tracers for many types of astronomical regions in local and distant parts of the Universe, including cold gas reservoirs primed for the formation of new stars, regions of active star formation, giant photon-dominated regions and near active galactic nuclei. Further chapters demonstrate how to obtain useful astronomical information from raw telescope data while providing recommendations for appropriate observing strategies. Replete with maps, charts and references for further reading, this handbook will suit research astronomers and graduate students interested in broadening their skill to take advantage of the new facilities now coming online.
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Astrophysics --- Astrophysique --- Sun. --- Soleil
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Astrophysics --- Astrophysics. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Astrofísica.
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Galaxies --- Astronomy --- Astrophysics --- Cosmology --- Astronomy. --- Astrophysics. --- Cosmology. --- Galaxies. --- Astronomy - General
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Unser Mond ist uns vertraut - und birgt zugleich viele Geheimnisse, die wir mit Hilfe der Naturwissenschaften lüften können. Dieses Sachbuch über den Mond und seine Bewegung wendet sich an naturwissenschaftlich interessierte Leser aller Altersstufen, die den Mond noch einmal neu entdecken möchten. Der Text enthält stellenweise auch Formeln und Berechnungen, die aber nicht über die physikalisch-mathematischen Anforderungen einer gymnasialen Oberstufe hinausgehen. An den Anfang ist die Geschichte der Mondbeobachtung gestellt, die einen Bogen spannt von der Antike über die Erfindung des Fernrohrs in der Neuzeit bis hin zur Raumfahrt und bemannten Mondlandung. Auch die gegenwärtig den Mond umkreisenden Raumsonden werden behandelt. Daneben werden die Besonderheiten des Erdmonds innerhalb des Sonnensystems aufgezeigt und die Voraussetzungen für Leben auf anderen Planeten und Monden beschrieben. Und auch der Einfluss des Mondes auf das irdische Leben wird betrachtet. Ein weiterer Schwerpunkt des Buches ist die Darstellung der Ellipsenbahn des Mondes um die Erde und um die Sonne. Dazu gehören seine verschiedenen Beleuchtungsphasen und sein scheinbares 'Kopfnicken' und 'Kopfschütteln', das wir von der Erde aus sehen und wissenschaftlich leicht verstehen können. Mit Hilfe von Grafiken wird der Weg des Mondes über dem irdischen Horizont erläutert und Ebbe und Flut als Folge der Gezeitenkräfte des Mondes und der Sonne beschrieben. Nicht zuletzt erfährt der Leser, wie man Sonnen- und Mondfinsternisse einfach vorausberechnen kann. Zum Schluss wird dargestellt, warum der Mond sich so seltsam unregelmäßig bewegt. Ein Buch für alt und jung - für Anhänger und Fans unseres Mondes und solche, die es werden wollen. Der Autor Eckart Kuphal, geboren in Berlin, ist promovierter Physiker (Inst. Kernphysik der TU Darmstadt) und war seit 1975 langjähriger Leiter der Arbeitsgruppe "Epitaxie von Halbleiterstrukturen" am Forschungsinstitut der Deutschen Telekom in Darmstadt. Er ist Autor von mehr als 100 wissenschaftlichen Publikationen auf den Gebieten Kernphysik und Halbleitertechnologie. Seit über zehn Jahren befasst er sich mit Astronomie und hält darüber auch Vorträge.
Astronomy. --- Astrophysics. --- Popular Science in Astronomy. --- Astronomy, Astrophysics and Cosmology.
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Galaxies --- Astronomy --- Astrophysics --- Cosmology --- Astronomy. --- Astrophysics. --- Cosmology. --- Galaxies. --- Astronomy - General
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High-energy astrophysics has unveiled a Universe very different from that only known from optical observations. It has revealed many types of objects in which typical variability timescales are as short as years, months, days, and hours (in quasars, X-ray binaries, and other objects), and even down to milli-seconds in gamma ray bursts. The sources of energy that are encountered are only very seldom nuclear fusion, and most of the time gravitation, a paradox when one thinks that gravitation is, by many orders of magnitude, the weakest of the fundamental interactions. The understanding of these objects' physical conditions and the processes revealed by high-energy astrophysics in the last decades is nowadays part of astrophysicists' culture, even of those active in other domains of astronomy. This book evolved from lectures given to master and PhD students at the University of Geneva since the early 1990s. It aims at providing astronomers and physicists intending to be active in high-energy astrophysics a broad basis on which they should be able to build the more specific knowledge they will need. While in the first part of the book the physical processes are described and derived in detail, the second part studies astrophysical objects in which high-energy astrophysics plays a crucial role. This two-pronged approach will help students recognise physical processes by their observational signatures in contexts that may differ widely from those presented here.
Astrophysics --- Physics --- astrofysica --- kernenergie --- fysica
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