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Author: Jane Shand Publisher: Jane Shand ISBN: Category : Young Adult Fiction Languages : en Pages : 323
Book Description
The fate of Nalani's world hangs in the balance Nalani is basking in her newfound contentment. But when her magic surges back to life, she is convinced it holds the key to her past. She returns to Karas and recruits her old friends to join her quest to find her long-lost father and confront an ominous lord who lurks in the mountains. Along the way, she and her friends will face danger and adventure, while she discovers the strength and courage within herself to stand against the madness of a man corrupted, and the terrifying weapon of a charismatic king. If you enjoy coming of age stories with strong female protagonists and magic, then you'll love The Dark Cluster. Discover the fate of Nalani's father in this conclusion to the series. Young adult fantasy, young adult epic fantasy
Author: Jane Shand Publisher: Jane Shand ISBN: Category : Young Adult Fiction Languages : en Pages : 323
Book Description
The fate of Nalani's world hangs in the balance Nalani is basking in her newfound contentment. But when her magic surges back to life, she is convinced it holds the key to her past. She returns to Karas and recruits her old friends to join her quest to find her long-lost father and confront an ominous lord who lurks in the mountains. Along the way, she and her friends will face danger and adventure, while she discovers the strength and courage within herself to stand against the madness of a man corrupted, and the terrifying weapon of a charismatic king. If you enjoy coming of age stories with strong female protagonists and magic, then you'll love The Dark Cluster. Discover the fate of Nalani's father in this conclusion to the series. Young adult fantasy, young adult epic fantasy
Author: F. Mardirossian Publisher: Springer Science & Business Media ISBN: 9400964129 Category : Science Languages : en Pages : 660
Book Description
The large-scale structure of the Universe and systems Clusters, and Groups of galaxies are topics like Superclusters, They fully justify the meeting on "Clusters of great interest. and Groups of Galaxies". The topics covered included the spatial distribution and the clustering of galaxies; the properties of Superclusters, Clusters and Groups of galaxies; radio and X-ray observations; the problem of unseen matter; theories concerning hierarchical clustering, pancakes, cluster and galaxy formation and evolution. The meeting was held at the International Center for Theoretical Physics in Trieste (Italy) from September 13 to September 16, 1983. It was attended by about 150 participants from 22 nations who presented 67 invited lectures (il) and contributed papers (cp), and 45 poster papers (pp). The Scientific Organizing Committee consisted of F. Bertola, P. Biermann, A. Cavaliere, N. Dallaporta, D. Gerba1, M. Hack, J . V . Peach, D. Sciama (Chairman), G. Setti, M. Tarenghi. We are particularly indebted to D. Sciama, A. Cavaliere and F. Bertola for their work of coordination. We were acting as the three members of the Local Organizing Committee. Moreover, we are pleased to thank the Chairmen of the Sessions (M. Hack, N. Da11aporta, G. Burbidge, B. Mills, M. Rees, P. Biermann, L.Z. Fang, L. Gouguenheim) for their valuable help.
Author: Hao-Yi Wu Publisher: Stanford University ISBN: Category : Languages : en Pages : 234
Book Description
The acceleration of the universe, which is often attributed to "dark energy, " has posed one of the main challenges to fundamental physics. Galaxy clusters provide one of the most sensitive probes of dark energy because their abundance reflects the growth rate of large-scale structure and the expansion rate of the universe. Several large galaxy cluster surveys will soon provide tremendous statistical power to constrain the properties of dark energy; however, the constraining power of these surveys will be determined by how well systematic errors are controlled. Of these systematic errors, the dominant one comes from inferring cluster masses using observable signals of clusters, the so-called "observable--mass distribution." This thesis focuses on extracting dark energy information from forthcoming large galaxy cluster surveys, including how we maximize the cosmological information, how we control important systematics, and how precisely we need to calibrate theoretical models. We study how multi-wavelength follow-up observations can improve cluster mass calibration in optical surveys. We also investigate the impact of theoretical uncertainties in calibrating the spatial distributions of galaxy clusters on dark energy constraints. In addition, we explore how the formation history of galaxy clusters impacts the self-calibration of cluster mass. In addition, we use N-body simulations to develop a new statistical sample of cluster-size halos in order to further understand the observable--mass distribution. We study the completeness of subhalos in our cluster sample by comparing them with the satellite galaxies in the Sloan Digital Sky Survey. We also study how subhalo selections impact the inferred correlation between formation time and optical mass tracers, including cluster richness and velocity dispersion.
Author: Markus Kissler-Patig Publisher: Springer Science & Business Media ISBN: 9783540404729 Category : Science Languages : en Pages : 382
Book Description
Dramatic progress is a trademark of the recent study of globular cluster systems. Considerations about the formation and evolution compose the first chapter, followed by a chapter on young star clusters. Then come four chapters reviewing the globular cluster system of early-type, late-type and dwarf galaxies, as well as of groups of galaxies. One chapter is dedicated to stellar population models and their applications to the field. Finally a chapter reviews the kinematics of galaxies derived from globular cluster systems and another their role in the context of galaxy formation and evolution studies. As a whole, the book gives an up-to-date view of the field at the beginning of the new decade, which will without doubt again bring significant progress in our understanding of globular cluster systems and galaxy formation and evolution.
Author: Steve R. Coe Publisher: Springer Science & Business Media ISBN: 9781852336271 Category : Science Languages : en Pages : 388
Book Description
Steve Coe has been watching the deep sky from locations near his home in Arizona for almost 20 years. During that time he has accumulated a wealth of knowledge, observations, hints and tips that will help every deep sky observer, regardless of experience. This, his first book, gives detailed practical advice about how to find the best observing site, how to make the most of the time spent there, and what equipment and instruments to take along. There are comprehensive lists of deep sky objects of all kinds, along with Steve's own observations describing how they look through telescopes with apertures ranging from 8 to 36 inches (0.2 - 0.9 m). Most of all, this book is all about how to enjoy astronomy. Steve's enthusiasm and sense of wonder shine through every page as he invites you along on a tour of some of the most beautiful and fascinating sites in the deep sky.
Author: Derek Raine Publisher: CRC Press ISBN: 1351991086 Category : Science Languages : en Pages : 238
Book Description
A thorough introduction to modern ideas on cosmology and on the physical basis of the general theory of relativity, An Introduction to the Science of Cosmology explores various theories and ideas in big bang cosmology, providing insight into current problems. Assuming no previous knowledge of astronomy or cosmology, this book takes you beyond introductory texts to the point where you are able to read and appreciate the scientific literature, which is broadly referenced in the book. The authors present the standard big bang theory of the universe and provide an introduction to current inflationary cosmology, emphasizing the underlying physics without excessive technical detail. The book treats cosmological models without reliance on prior knowledge of general relativity, the necessary physics being introduced in the text as required. It also covers recent observational evidence pointing to an accelerating expansion of the universe. The first several chapters provide an introduction to the topics discussed later in the book. The next few chapters introduce relativistic cosmology and the classic observational tests. One chapter gives the main results of the hot big bang theory. Next, the book presents the inflationary model and discusses the problem of the origin of structure and the correspondingly more detailed tests of relativistic models. Finally, the book considers some general issues raised by expansion and isotropy. A reference section completes the work by listing essential formulae, symbols, and physical constants. Beyond the level of many elementary books on cosmology, An Introduction to the Science of Cosmology encompasses numerous recent developments and ideas in the area. It provides more detailed coverage than many other titles available, and the inclusion of problems at the end of each chapter aids in self study and makes the book suitable for taught courses.
Author: Alain Mazure Publisher: World Scientific ISBN: 9814545414 Category : Languages : en Pages : 246
Book Description
Together with Virgo, the Coma Berenices cluster is one of the most well-studied clusters at all wavelengths and in all aspects, from the Sunyaev-Zeldovich effect to star formation in galaxies. In a way, it is the prototype of rich clusters. Recent observational results, linked to the improvement of techniques such as X-ray and UV observations, along with multi-object spectroscopy, have shown that they could change our vision of this cluster. It is thus time for observers and theoreticians to confront all these new ideas and observations on the Coma cluster.The topics in this volume include: cosmological aspects of the Coma cluster, comparison with distant clusters; substructures; matter content and distribution; Sunyaev-Zeldovich effect; dynamical modelling, cluster dynamics; environmental effects on galaxies, star formation.
Author: Jane Shand
Author: Jane Shand
Author: F. Mardirossian
Author: Elly M. Berkhuijsen
Author: Hao-Yi Wu
Author: David W. Saraniti
Author: Markus Kissler-Patig
Author: Steve R. Coe
Author: 
Author: Derek Raine
Author: Alain Mazure