“…The book provides a brief overview of the history and development of the spectroscope, then a short introduction to the theory of stellar spectra, including details on the necessary reference spectra required for instrument testing and spectral comparison. …”
Enlace del recurso
Enlace del recurso

“…How did progress in quantum theory, nuclear physics, spectroscopy, stellar structure and evolution, together with observations of stars, converge to provide an incredibly detailed picture of the universe? …”
Enlace del recurso
Enlace del recurso

“…The studies presented here cover various fields of FUV spectroscopy with the exclusion of direct solar UV spectroscopy, including a catalog of stellar spectra, data-sets of lunar Irradiance, observations of comets and measurements of the interplanetary background. …”
Enlace del recurso
Enlace del recurso

“…This book focuses on the formulation of mathematical models for the light curves of eclipsing binary stars, and on the algorithms for generating such models Since information gained from binary systems provides much of what we know of the masses, luminosities, and radii of stars, such models are acquiring increasing importance in studies of stellar structure and evolution As in other areas of science, the computer revolution has given many astronomers tools that previously only specialists could use; anyone with access to a set of data can now expect to be able to model it This book will provide astronomers, both amateur and professional, with a guide for - specifying an astrophysical model for a set of observations - selecting an algorithm to determine the parameters of the model - estimating the errors of the parameters It is written for readers with knowledge of basic calculus and linear algebra; appendices cover mathematical details on such matters as optimization, coordinate systems, and specific models While emphasizing the physical and mathematical framework, the discussion remains close to the problems if actual implementation It begins with an overview of the problem and a discussion of the observational data that form the basis of any model The treatment then turns to the direct problem (computing the light curve and other observables from the a given set of parameters) and then to the indirect problem (determining a best-fit set of parameters from the data) The book concludes with chapters on specific models and approaches and the authors' views on the structure of future light- curve programs…”
Enlace del recurso
Enlace del recurso

“…Add an inexpensive diffraction grating to your camera and see the variety of spectral features in the stars, and demonstrate that the Sun’s spectrum is similar to one particular type of stellar spectrum.   With a backyard telescope: Add a CCD imager and you can measure the scale of the Solar System and the distance to a nearby star. …”
Enlace del recurso
Enlace del recurso

“…Astrometry is on the threshold of great changes due to the fact that this decade, alone, is witnessing an improvement of stellar positions equivalent to the total improvement of the previous two centuries. …”
Enlace del recurso
Enlace del recurso

“…The concept of Stellar Populations has played a fundamental role in astronomy in the last few decades. …”
Enlace del recurso
Enlace del recurso

“…As well as giving our colleagues from the Northern Hemisphere a break from midwinter, the location of the Symposium in Australia recognised the continuing development of astronomical interferometry in this country, especially the recent completion of the Australia Telescope radio array, and the progress toward com­ missioning of the Sydney University Stellar Interferometer. A number of the par­ ticipants visited these instruments during the post-symposium tour.…”
Enlace del recurso
Enlace del recurso

“…Following this, chapter 10 describes Plasma Applications such as magnetic fusion (pinches, mirrors, FRCs, stellarators, tokamaks, spheromaks), plasma accelerators and FELs, ine rtial fusion, semiconductor etching, and spacecraft propulsion. …”
Enlace del recurso
Enlace del recurso

“…This includes knowledge of how stellar or thermal radiation propagates through atmospheres, how that propagation affects radiative forcing of climate, how atmospheric pollutants and greenhouse gases produce unique spectroscopic signatures, how the properties of atmospheres may be quantitatively measured, and how those measurements relate to physical properties. …”
Enlace del recurso
Enlace del recurso

“…The book is organized in three parts: "The Big," covering the cosmic web, dark energy, dark matter, and massive clusters of galaxies; "The Bad," exploring neutron stars, stellar black holes, and supermassive black holes; and "The Beautiful," discussing stars, exoplanets, and life.Chandra has imaged the spectacular, glowing remains of exploded stars and taken spectra showing the dispersal of their elements. …”
Enlace del recurso

“…It deals with the diffuse interstellar medium which supplies a complex environment for exploring the neutral gas content of a galaxy like the Milky Way and the techniques necessary for studying this non-stellar component. After an initial exposition of the phases of the interstellar medium and the role of gas in a spiral galaxy, the authors discuss the transition from atomic to molecular gas. …”
Enlace del recurso
Enlace del recurso

“…Part 3 is concerned with the stellar progenitors and explosion mechanisms of thermonuclear (Type Ia) supernovae. …”
Enlace del recurso
Enlace del recurso

“…New content includes improved atmospheric models, new understandings of the impact of stellar radiation on the atmosphere of red dwarf worlds, tidal-locking, and comparisons with terrestrial geology and climate.…”
Enlace del recurso
Enlace del recurso

“…È quello che è riuscito ad Alessandro Boselli, specialista di formazione stellare nelle galassie, il quale utilizza, oltre alle sue proprie osservazioni, i dati dei satelliti astronomici. …”
Enlace del recurso
Enlace del recurso

“…Simple starch grains are located in the stellar region. Vessel element occurring one at each end. …”
Enlace del recurso
Enlace del recurso

“…Its flexible tetrahedral carbon atoms that alternate with more rigid amide groups allow it to deform and reform in hazardous conditions and its density of hydrogen bonds provides adhesion that would support accretion to it of silicon and metal elements to form a stellar dust material.…”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The multi-transition SiO masers are nearly circular ring, suggesting spherically symmetric wind within a few stellar radii. These results provide the clear evidence that the asymmetry in the outflow is enhanced after the smaller molecular gas clump transform into the inhomogeneous dust layers. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…By balancing the rates for the light and dark chemistry, we delineate the “abiogenesis zones” around stars of different stellar types based on whether their UV fluxes are sufficient for building up this macromolecular prebiotic inventory. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Consequently, the resulting polymer-tethered perovskite/SiO(2) core/shell NCs display concurrently a stellar set of substantially improved stabilities (i.e., colloidal stability, chemical composition stability, photostability, water stability), while having appealing solution processability, which are unattainable by conventional methods.…”
Enlace del recurso
Enlace del recurso
Enlace del recurso