Robert Grosseteste (1168/75-1253), Bishop of Lincoln from 1235-1253, is widely recognized as one of the key intellectual figures of medieval England and as a trailblazer in the history of scientific methodology. Few of his numerous philosophical and scientific writings circulated as widely as the Compotus, a treatise on time reckoning and calendrical astronomy apparently written during a period of study in Paris in the 1220s. Besides its strong and long-lasting influence on later writers, Grossteste's Compotus is particularly noteworthy for its innovatory approach to the theory and practice of the ecclesiastical calendar-a subject of essential importance to the life of the Latin Church. Confronting traditional computistical doctrines with the lessons learned from Graeco-Arabic astronomy, Grosseteste offered his readers a critical and reform-oriented take on the discipline, in which he proposed a specific version of the Islamic lunar as a substitute for the failing nineteen-year cycle the Church still employed to calculate the date of Easter. This new critical edition of Grosseteste's Compotus contains the Latin text with an en-face English translation. It is flanked by an extensive introduction and chapter commentary, which will provide valuable new insights into the text's purpose and disciplinary background, its date and biographical context, its sources, as well as its reception in later centuries.

Cosmical Aerodynamics - Why was it so Difficult?.- Shaping Planetary Nebulae.- Investigating the Kinematics of the Faint Giant Haloes of Planetary Nebulae.- Shock Modelling of Planetary Nebulae.- Imaging Polarimetry of Proto-Planetary Nebulae.- IRAS 17423-1755: a BQ[ ] Star with a Variable Velocity Outflow.- Spectroscopic Constraints on Outflows from BN-type Objects.- First Wavelet Analysis of Emission Line Variations in Wolf-Rayet Stars-Turbulence in Hot-Star Outflows.- Complex Structure Associated with the Wolf-Rayet Star WR147.- The Importance of Continuum Radiation for the Stellar Wind Hydrodynamics of Hot Stars.- Herbig Ae/Be Stars.- 3-D Radiative Line Transfer for Be Star Envelopes.- Radiatively Driven Winds Using Lagrangian Hydrodynamics.- Parametric Determination of the Inclination of Keplerian Circumstellar Discs from Spectropolarimetric Profiles of Scattered Lines.- Observational Evidence for Global Oscillations in Be Star Disks.- Coupled Stellar Jet/Molecular Outflow Models.- Modelling Jet-Driven Molecular Outflows.- Jets.- A Simulation of a Jet with the Hiccups.- Interactions Between Molecular Outflows and Optical Jets.- Proper Motion Measurements in the HH 46/47 Outflow.- The Serpens Radio Jet: Evidence of Precession or Nutation.- Fragmentation and Heating of Streamers in Orion.- Highly Supersonic Molecular Flows in Wind-Clump Boundary Layers.- High Density Tracers in Outflow Regions: NH3 vs. CS.- Modelling the Constancy of X.- Gas-Grain Interaction in the Low Mass Star-Forming Region B335.- The Structure and Dynamics of M17SW.- The Hydrodynamics of Bipolar Explosions.- Shock-Heated Gas in the Outbursts of Classical Novae.- The Crab Nebula Revisited.- Pulsar Magnetospheres: Classical and Quasi-Classical Descriptions.- The Global Structure of the Insterstellar Medium.- A Power Spectrum Description of Galactic Neutral Hydrogen.- A Statistical Description of Astrophysical Turbulence.- Rosat Wide Field Camera Data and the Temperature of the Interstellar Medium.- Hierarchial Galactic Dynamo and Seed Magnetic Field Problem.- Cosmic Ray Diffusion at Energies of 1 MeV to 105 GeV.- Alfvenic Waves and Alignment of Large Grains.- An Interstellar Thermostat: Gas Temperature Regulated by Grain Charge.- Recent Optical Observations of Circumstellar and Interstellar Phenomena.- Internal Motions of HII Regions and Giant HII Regions.- High-Speed Flows in the Vicinity of the Trapezium Stars.- The Orion Nebula: Structure, Dynamics, and Population.- An Evolutionary Model for the Wolf Rayet Nebula NGC 2539.- Supersonic Turbulence in Giant Extragalactic HII Regions.- The Dynamics of the Ring Nebula Surrounding the LBV Candidate He 3-519.- Turbulent Mixing in Wind-Blown HII Regions.- Shock Wave Structure in the Cygnus Loop.- Catastrophic Cooling Diagnostics.- Star Formation in Shocked Layers.- Binary and Multiple Star Formation.- Galactic Fountains.- The Solution Topology of Galactic Winds.- Galactic Scale Gas Flows in Colliding Galaxies: 3-Dimensional, N-Body/Hydrodynamics Experiments.- Gas Flow in a Two Component Galactic Disk.- How Faithful Are N-Body Simulations of Disc Galaxies? - Artificial Suppression of Gaseous Dynamical Instabilities.- Long-Lived Spiral Structure in N-Body Simulations: Work in Progress.- The Use of Gravitational Microlensing to Scan the Structure of BAL QSOs.- Anomalous Component Motion in the MAS Double Radio Source 0646+600.- Effects of Dense Medium Surrounding Galactic-Sized Radio Sources.- 8.4 Ghz Vla Observations of the CfA Seyfert Sample.- Relativistic Jet Simulations.- Active Galactic Nuclei Flow Velocities and the Highest Energy Cosmic Rays.- Hidden Broad Line Regions and Anisotropy in AGN.- The Starburst Galaxy NGC1808: Another M82?.- List of Forthcoming Papers.- The 'KLUWER' LaTeX Style File.

This book on space geodesy presents pioneering geometrical approaches in the modelling of satellite orbits and gravity field of the Earth, based on the gravity field missions CHAMP, GRACE and GOCE in the LEO orbit. Geometrical approach is also extended to precise positioning in space using multi-GNSS constellations and space geodesy techniques in the realization of the terrestrial and celestial reference frame of the Earth. This book addresses major new developments that were taking place in space geodesy in the last decade, namely the availability of GPS receivers onboard LEO satellites, the multitude of the new GNSS satellite navigation systems, the huge improvement in the accuracy of satellite clocks and the revolution in the determination of the Earth's gravity field with dedicated satellite missions.

This book focuses on understanding the stellar populations of massive star clusters and aims to investigate the origin, evolution and properties of binary systems, their collision products, as well as the general characteristics (e.g. ages, metal content) of stellar population(s) in star clusters. It introduces the basic background knowledge of various stellar populations in star clusters as well as their formation, interaction and evolution and offers high impact observational results on our understanding of the formation and evolution mode of star clusters. Based on these discoveries, this book proposes a series of future projects that can shed light on these topics. The research introduced in this book reveals key features of star clusters formation and by extension how all stars formed in our universe.

This thesis discusses the evolution of galaxies through the study of the morphology, kinematics, and star formation properties of a sample of nearby galaxies. The main body of the thesis describes the kinematic observations with the GHaFAS Fabry-Perot instrument on the William Herschel Telescope of a sample of 29 spiral galaxies. The work is closely related to the Spitzer Survey of Stellar Structure in Galaxies, and uses the mid-infrared data of that survey to determine key parameters of the galaxies studied. From these data, important results are obtained on streaming and other non-circular motions in galaxies, on the distribution and rates of star formation, and on how correlations of these parameters and of the rotation curve shape with basic galaxy parameters yield clues on the evolutionary processes taking place in disk galaxies.

Julian Schwinger in Retrospect: Recollections of Julian Schwinger (M. Hamermesh). Nonequilibrium Problems in Quantum Field Theory and Schwinger's Closed Time Path Formalism (F. Cooper). Directions in Particle Physics and Cosmology: Second Phase of the General Theory of Relativity (B.N. Kursunoglu). Exact Solutions for Confinement of Electric Charge via Condensation of a Spectrum of Magnetic Charges (B.N. Kursunoglu). Current Status of Gravity Wave Detection: The Search for Gravitation Waves (B.C. Barish). Reducing Thermal Noise in Interferometric Detectors of Gravitational Waves (P.R. Saulson). Neutrinos and Muons: Neutrino Reactions in Nuclei in the Large and in the Small (S.L. Mintz, M. Pourkaviani). Physics Interest in u+u Colliders (V. Barge). Strings and Superstrings: Spin Field Vertices and Gauge Symmetry (L. Dolan). Identification as Black Holes of All Massive Superstring States (P.H. Frampton). Progress in Some New and Old Ideas: Reflection Matrices and Polymers at a Surface (M. Batchelor, C.M. Yung). Spin Physics at High Energy: Polarized Proton Beams at Fermilab (R.A. Phelps). 14 additional articles. Index.

Reach for the stars

Stargazing is the practice of observing the night sky and its contents - from constellations through to planets and galaxies. Stars and other night sky objects can be seen with the naked eye, or seen in greater numbers and in more detail with binoculars or a telescope.

"Stargazing For Dummies" offers you the chance to explore the night sky, providing a detailed guide to the main constellations and also offering advice on viewing other night sky objects such as planets and nebulae. It's a great introduction to a fun new hobby, and even provides a fun way to get the kids outside while doing something educational Gives you an introduction to looking at the sky with binoculars or a telescopeOffers advice on photographing the night skyWithout needing to get your head around mind-bending theories, you can take part in some practical physics

If you're looking for easy-to-follow guidance on getting to know the night sky, "Stargazing For Dummies" has you covered.

An almost complete collection of the papers given at the International Workshop on Imaging in High Energy Astronomy (Anacapri, Italy, 1994). These proceedings, which concentrate on imaging above 10 keV, represent the state of the art in the field, resulting from the success of many missions (I.C. Granat and CGRO) carrying detectors for high energy astronomy with imaging capabilities. The main topics of the book are Bragg concentrators, coded mask-modulation collimators, double Compton telescopes, the occultation method, tracking chambers, and new experimental techniques. The book also contains some papers dealing with image reconstruction and processing, with an emphasis on the above techniques.

This book is an invaluable guide to calibrating any infrared spectrum using noble gases as a reference. Featuring a detailed graphical and tabular overview of highly excited (Rydberg) states of neutral noble gases in the infrared range of 700-7000 cm-1, it helps researchers by providing high-precision experimental data that can be used in almost every infrared spectroscopic laboratory.

This book focuses on new experimental and theoretical advances concerning the role of strange and heavy-flavour quarks in high-energy heavy-ion collisions and in astrophysical phenomena. The topics covered include * Strangeness and heavy-quark production in nuclear collisions and hadronic interactions, * Hadron resonances in the strongly-coupled partonic and hadronic medium, * Bulk matter phenomena associated with strange and heavy quarks, * QCD phase structure, * Collectivity in small systems, * Strangeness in astrophysics,* Open questions and new developments.

This work discusses the problem of physical meaning of the three main dynamical properties of matter motion, namely gravitation, inertia and weightlessness. It considers that Newtonian gravitation and Galileo's inertia are the centrifugal effects of interaction energy of a self-gravitating n-body system and its potential field. A self-gravitating celestial body appears to be an excellent natural centrifuge that is rotated by the energy of interacting elementary particles. Weightlessness is a consequence of the centrifugal effect of elementary particles interaction that appears at differentiation of a body matter with respect to density. The author analyzes the problem of creation of mass particles and elements from the elementary particles of "dark matter", and discusses the basic physics of the Jacobi dynamics from the viewpoint of quantum gravitation. Chapters assert that the fundamentals of Jacobi dynamics completely correspond to conditions of natural centrifuges. The centrifuge is an excellent experimental model for the study of dynamical effects in solving the many body problem. In this book, readers may follow the demonstration of some of those studies and follow derivations, solutions and conclusions that provide a solid basis for further research in celestial mechanics, geophysics, astrophysics, geo- and planetary sciences.

This volume contains selected and expanded contributions presented at the 3rd Symposium on Space Optical Instruments and Applications in Beijing, China June 28 - 29, 2016. This conference series is organised by the Sino-Holland Space Optical Instruments Laboratory, a cooperation platform between China and the Netherlands. The symposium focused on key technological problems of optical instruments and their applications in a space context. It covered the latest developments, experiments and results regarding theory, instrumentation and applications in space optics. The book is split across five topical sections. The first section covers space optical remote sensing system design, the second advanced optical system design, the third remote sensor calibration and measurement. Remote sensing data processing and information extraction is then presented, followed by a final section on remote sensing data applications.

The thesis presents a tool to create rubble pile asteroid simulants for use in numerical impact experiments, and provides evidence that the asteroid disruption threshold and the resultant fragment size distribution are sensitive to the distribution of internal voids. This thesis represents an important step towards a deeper understanding of fragmentation processes in the asteroid belt, and provides a tool to infer the interior structure of rubble pile asteroids. Most small asteroids are 'rubble piles' - re-accumulated fragments of debris from earlier disruptive collisions. The study of fragmentation processes for rubble pile asteroids plays an essential part in understanding their collisional evolution. An important unanswered question is "what is the distribution of void space inside rubble pile asteroids?" As a result from this thesis, numerical impact experiments can now be used to link surface features to the internal structure and therefore help to answer this question. Applying this model to asteroid Steins, which was imaged from close range by the Rosetta spacecraft, a large hill-like structure is shown to be most likely primordial, while a catena of pits can be interpreted as evidence for the existence of fracturing of pre-existing internal voids.

Cosmology has become a very active research field in the last decades thanks to the impressing improvement of our observational techniques which have led to landmark discoveries such as the accelerated expansion of the universe, and have put physicists in front of new mysteries to unveil, such as the quest after the nature of dark matter and dark energy. These notes offer an approach to cosmology, covering fundamental topics in the field: the expansion of the universe, the thermal history, the evolution of small cosmological perturbations and the anisotropies in the cosmic microwave background radiation. Some extra topics are presented in the penultimate chapter and some standard results of physics and mathematics are available in the last chapter in order to provide a self-contained treatment. These notes offer an in-depth account of the above-mentioned topics and are aimed to graduate students who want to build an expertise in cosmology.

This volume collects the contributions to the 10th European Workshop on White Dwarfs held in Blanes, Spain, in June 1996. The Workshop gathered together a number of specialists working in this area of research and provided an updated description of the current work of the field as well as its connections with other topics. This text provides a snapshot of current understanding of the origin, structure and evolution of white dwarf stars from both the theoretical and the observational points of view. It also takes into account the properties of white dwarfs as members of binary systems, stellar clusters and galactic populations.

1. Standard Model of Primordial Nucleosynthesis and Observations of Light Elements.- Standard Model of Primordial Nucleosynthesis: A Few General Remarks.- The Abundances of D, He and Li Test and Constrain the Standard Model of Cosmology.- Lithium, Beryllium and Boron: Observational Constraints on Primordial Nucleosynthesis.- The Evolution of the Galactic Lithium Abundance.- Chemical Evolution of Galaxies.- The Effect of Some Nonequilibrium Processes on the Primordial Nucleosynthesis.- Analysis of the Reaction 7Li(d, n)8Be at Subcoulomb Energies.- Experimental Study of the Key Reaction to the Nucleosynthesis in the Inhomogeneous Big Bang Models.- Primordial Black Holes and Big Bang Nucleosynthesis.- Constraints from Primordial Nucleosynthesis on Neutrino Degeneracy.- 2. QCD Phase Transition and Nucleosynthesis in Inhomogeneous Universes.- Strange Quark Matter in Physics and Astrophysics.- Primordial Nucleosynthesis in Inhomogeneous Universe.- Sterile Neutrinos in the Early Universe.- Could Cosmic QCD Phase Transition Produce Strange Quark Matter Which Survives until the Present Time?.- Multi-Zone Calculation of Nucleosynthesis in Inhomogeneous Universe and Be-9 Abundance.- Signatures of Inhomogeneity in the Early Universe.- Diffusion Coefficients of Nucleons in the Inhomogeneous Big Bang Model.- Reactions on Carbon-14.- Survival of Strange Matter Lumps Formed in the Early Universe.- Measurement of the Cross Section of the 12C(n, g)13C Reaction at Stellar Energy.- Inhomogeneous Universes in the Framework of Lattice QCD.- 3. Inflation and very Early Universe.- The Beginning of the Universe.- Extended Inflationary Cosmology: A Primer.- The Inflation Sector of Extended Inflation.- Inflation in Generalized Einstein Theories.- Baryogenesis in the Universe.- Formation of Topological Defects in the Inflationary Universe.- Non-Zel'dovich Fluctuations from Inflation.- Magnetic Theory of Gravitation.- Chaotic Inflation and the Omega Problem.- Late-Time Cosmological Phase Transitions.- False-Vacuum Decay in Generalized Extended Inflation.- Reconciling a Small Density Parameter to Inflation.- Soft Inflation: A Model for Easing Constraints.- Stochastic Inflation Lattice Simulations: Ultra-Large Scale Structure of the Universe.- Purely Quantum Derivation of Density Fluctuations in the Inflationary Universe.- Constraints on the Coupling of Weakly-Interacting Particles to Matter from Stellar Evolution.- Formation and Evolution of Domain-Wall-Networks.- Catastrophe of Spacetime in the Early Universe.- (2+1)-Dimensional Quantum Gravity.- A Stringy Universe Scenario.- The Constant-Mean-Curvature Slicing of the Schwarzschild-de Sitter Space-Time.- Schwarzschild-de Sitter Type Wormhole and Cosmological Constant.- 4. Background Radiation.- COBE: New Sky Maps of the Early Universe.- Large Scale Cosmic Instability.- Gas-Induced Primary and Secondary CMB Anisotropies.- Cosmic X-Ray Background.- Large Scale Anisotropy of the CMB in an Open Universe and Constraints on the Models of Galaxy Formation.- 5. Dark Matter.- The Best-Fit Universe.- LEP Physics and the Early Universe.- A Search for Dark Matters in the Kamiokande II.- Baryonic Dark Matter.- Phenomenological Dark Matter Detection Rate-form WIMP to SIMP-.- 6. Galaxies and AGN.- X-Ray Iron Line of Cluster of Galaxies.- Dynamical Evolution of Compact Groups of Galaxies.- Correlations of Spin Angular Momenta of Galaxies.- Formation of Bipolar Radio Jets and Lobes from Accreton Disk around Forming Blackhole at the Center of Protogalaxies.- An Evolutionary Unified Scheme for Radio-Loud Quasars and Blazars.- Magnetohydrodynamical Energy Extraction from a Kerr Black Hole.- Spherical Symmetric Model for Calculating Large Peculiar Velocities of Galaxies.- On the Origin of Cosmological Magnetic Fields.- 7. Large Scale Structure.- The Hawaii Deep Survey-Implications for Cosmology and Galaxy Formation.- Analysis of the Large Scale Structure with Deep Pencil Beam Surveys.- Distance to the Coma Cluster and the Va.

A decade of observations of the Sun with NASA's Solar Maximum Mission satellite has led to many discoveries in solar physics and atomic physics. While the analysis of the data is still continuing, a huge body of literature has now been published interpreting results from the mission. This book collects a review of these results in a single volume to provide a snapshot, as it were, of the current state of knowledge of solar physics. It will thus be a useful tool for both teaching and research, as well as a guide to planners of future missions to investigate the Sun. Individual chapters, each written by an expert in solar physics, cover such topics as: z Variations in the solar irradiance z Active regions of the Sun z The corona: elemental abundances; coronal mass ejections z Chromospheric evaporation z Solar flares; ultraviolet flares; nonthermal flare emissions z Flare dynamics; preflare activity; the gradual phase of flares; particle acceleration in flares z Spectroscopy and atomic physics z Solar-terrestrial science z The solar-stellar connection z Comet observations z Cosmic studies

This book summarizes the research advances in star identification that the author's team has made over the past 10 years, systematically introducing the principles of star identification, general methods, key techniques and practicable algorithms. It also offers examples of hardware implementation and performance evaluation for the star identification algorithms. Star identification is the key step for celestial navigation and greatly improves the performance of star sensors, and as such the book include the fundamentals of star sensors and celestial navigation, the processing of the star catalog and star images, star identification using modified triangle algorithms, star identification using star patterns and using neural networks, rapid star tracking using star matching between adjacent frames, as well as implementation hardware and using performance tests for star identification. It is not only valuable as a reference book for star sensor designers and researchers working in pattern recognition and other related research fields, but also as teaching resource for senior postgraduate and graduate students majoring in information processing, computer science, artificial intelligence, aeronautics and astronautics, automation and instrumentation. Dr. Guangjun Zhang is a professor at the School of Instrumentation Science and Opto-electronics Engineering, Beihang University, China and also the Vice President of Beihang University, China

This thesis describes the studies on the solar interior where turbulent thermal convection plays an important role. The author solved, for the first time, one of the long-standing issues in solar physics, i.e., the maintenance mechanism of the solar differential rotation in the near-surface shear layer. The author attacked this problem with a newly developed approach, the reduced speed of sound technique, which enabled him to investigate the surface and deep solar layers in a self-consistent manner. This technique also made it possible to achieve an unprecedented performance in the solar convection simulations for the usage of the massively parallel supercomputers such as the RIKEN K system. It was found that the turbulence and the mean flows such as the differential rotation and the meridional circulation mutually interact with each other to maintain the flow structures in the Sun. Recent observations by helioseismology support the author's proposed theoretical mechanism. The book also addresses the generation of the magnetic field in such turbulent convective motions, which is an important step forward for solar cyclic dynamo research.

Interstellar carbon monoxide (CO) was first detected in 1970 by R. W. Wilson, K. B. Jefferts, and A. A. Penzias through observations of its lowest rotational transition at 2.6 mm wavelength. This discovery opened the door to a profound new understanding of several diverse yet related fields, including the phases of the interstellar medium, the initial and final phases of stellar evolution, the chemistry of dense and diffuse interstellar matter and of the solar system, the structure of the Milky Way galaxy, and the content and structure of other galaxies. These are among the most fundamental research areas in astrophysics, and spectroscopic information about CO and other molecules serves as a primary tool of investigation. Continuing developments in instrumentation will further increase the power and utility of millimeter and submillimeter-wavelength molecular line spectroscopy. The 25th anniversary of the detection of CO was an opportunity for researchers from all branches of millimeter-wave astronomy to gather and review progress and future directions. These Proceedings discuss the state of the field and consider important unanswered questions.

This is a presentation of the progress and current problems in the early universe, cosmic microwave background radiation, large scale structure formation, and the interplay between them. The emphasis is on the mutual impact of fundamental physics and cosmology, both at theoretical and experimental (observational) levels within a deep, well-focused and well-defined programme. The nature of the domain itself leads to different aspects, approaches and points of view on the same topic. Special care has been taken to provide the reader the basis of the different, sometimes competing lines of research.