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Stephen O'Meara's new and exciting observing guide spotlights an original selection of 109 deep-sky objects that will appeal to sky-watchers worldwide. His 'hidden treasures' include a wonderful assortment of galaxies, open clusters, planetary nebulae and more, all of which have been carefully chosen based on their popularity and ease of observing. None of these objects are included in either the Messier or the Caldwell catalogs, and all are visible in a 4-inch telescope under dark skies. Stunning photographs and beautiful drawings accompany detailed visual descriptions of the objects, which include their rich histories and astrophysical significance. The author's original finder charts are designed to help observers get to their targets fast and efficiently.
Astronomy --- Stars --- Nebulae. --- Galaxies. --- Extragalactic nebulae --- Nebulae, Extragalactic --- Galactic nebulae --- Gaseous nebulae --- Nebulas --- Galaxies --- Clusters of stars --- Groups of stars --- Star clusters --- Clusters. --- Groups
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Toward the second half of this decade, several major telescope facilities operating in the infrared, sub-millimeter, and millimeter wave bands will become operational. These missions are expected to throw much light on our understanding of the star formation phenomenon, which is one of the primary science goals in these wave bands. This book contains the proceedings of the "Cores to Clusters" workshop held at Centro de Astrofisica da Universidade do Porto. The mission of the workshop was to discuss current and future issues in star formation physics in the light of these Next Generation Telescopes. This book is comprised of a mixture of articles that provide a comprehensive coverage of current topics including both low and high mass star formation. It serves as a practical compendium for graduate students and young researchers working in the field of star formation.
Stars --- Formation. --- Clusters. --- Evolution. --- Stellar evolution --- Evolution --- Compact objects (Astronomy) --- Clusters of stars --- Groups of stars --- Star clusters --- Birth, Stellar --- Formation, Star --- Formation, Stellar --- Stellar birth --- Stellar formation --- Groups
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52 --- Stars --- -Sidereal system --- Galaxies --- Circumstellar matter --- Astronomie. Astrofysica. Ruimteonderzoek. Geodesie --- Clusters --- Stars. --- Clusters. --- -Astronomie. Astrofysica. Ruimteonderzoek. Geodesie --- Sidereal system --- Clusters of stars --- Groups of stars --- Star clusters --- Groups --- STARS --- CLUSTERS
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This book focuses on understanding the stellar populations of massive star clusters, which 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, offering 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 will shed light on these topics. The works that introduced in this book will have the unique potential to reveal the key features of star clusters formation and by extension how all stars formed in our universe.
Physics. --- Observations, Astronomical. --- Astronomy --- Astrophysics. --- Astronomy, Observations and Techniques. --- Astrophysics and Astroparticles. --- Observations. --- Stars --- Clusters. --- Clusters of stars --- Groups of stars --- Star clusters --- Groups --- Astronomy—Observations. --- Astronomical physics --- Cosmic physics --- Physics --- Astronomical observations --- Observations, Astronomical
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All stars are born in groups. The origin of these groups has long been a key question in astronomy, one that interests researchers in star formation, the interstellar medium, and cosmology. This volume summarizes current progress in the field, and includes contributions from both theorists and observers. Star clusters appear with a wide range of properties, and are born in a variety of physical conditions. Yet the key question remains: How do diffuse clouds of gas condense into the collections of luminous objects we call stars? This book will benefit graduate students, newcomers to the field, and also experienced scientists seeking a convenient reference.
Physics. --- Observations, Astronomical. --- Astronomy --- Astrophysics. --- Astrophysics and Astroparticles. --- Astronomy, Observations and Techniques. --- Observations. --- Stars --- Clusters. --- Clusters of stars --- Groups of stars --- Star clusters --- Groups --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical --- Astronomical physics --- Cosmic physics --- Physics
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Star clusters are among the most spectacular objects for amateur astronomers to observe and image. They represent the beginning, the present and the future of the universe, from sparse open clusters containing only a dozen stars, to giant globular clusters, each replete with a million suns. Part one of this detailed book provides a comprehensive review of star clusters – including open, globular, extragalactic, and even cluster remnants – along with their evolution and physics. Part two is about observing. The larger clusters can be observed through the most basic equipment – normal binoculars or budget telescopes – but Mark Allison talks about instrumentation and accessories, for observers from beginner to expert. Finally there is an observing guide and a comprehensive observing list for a wide range of telescope apertures. This one book provides all you need to observe star clusters, and to understand the many and varied objects that fall under this classification.
Stars --- Clusters. --- Clusters --- Sidereal system --- Galaxies --- Circumstellar matter --- Clusters of stars --- Groups of stars --- Star clusters --- Groups --- Astronomy. --- Astronomy, Astrophysics and Cosmology. --- Astronomy, Observations and Techniques. --- Popular Science in Astronomy. --- Astrophysics. --- Observations, Astronomical. --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics
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As with the author’s recent books Extreme Explosions and Under a Crimson Sun, the complex topic of star clusters is broken down and made accessible with clear links to other areas of astronomy in a language which the non-specialist can easily read and enjoy. The full range of a star cluster's lifespan is depicted, as both globular and open clusters are tracked from birth to eventual death. Why is it some are dense conglomerates of stars while others are looser associations? Are the young, brilliant clusters seen in neighboring galaxies such as the Large Magellanic Cloud, M33 or M82 analogous to the ancient globulars seen in the Milky Way? How will these clusters change as their stars wane and die? More interestingly, how does living in a dense star cluster affect the fates of the stars and any attendant planets that accompany them? Star clusters form many of the most dazzling objects in the astronomers’ catalogs. Many amateur astronomers are interested in exploring how these objects are created and what it would be like to live among these objects. From the historical views of how star clusters came about to the most recent assumptions about how stars within these clusters evolve, different strands of science, from observation to theory, are woven together into a compelling investigation specifically targeted at amateur astronomers.
Popular Science. --- Popular Science in Astronomy. --- Astronomy, Astrophysics and Cosmology. --- Science (General). --- Astronomy. --- Astronomie --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astronomy - General --- Stars --- Clusters. --- Clusters of stars --- Groups of stars --- Star clusters --- Groups --- Popular works. --- Astrophysics. --- Cosmology. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics
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Where do most stars (and the planetary systems that surround them) in the Milky Way form? What determines whether a young star cluster remains bound (such as an open or globular cluster), or disperses to join the field stars in the disc of the Galaxy? These questions not only impact understanding of the origins of stars and planetary systems like our own (and the potential for life to emerge that they represent), but also galaxy formation and evolution, and ultimately the story of star formation over cosmic time in the Universe. This volume will help readers understand our current views concerning the answers to these questions as well as frame new questions that will be answered by the European Space Agency's Gaia satellite that was launched in late 2013. The book contains the elaborated notes of lectures given at the 42nd Saas-Fee Advanced Course “Dynamics of Young Star Clusters & Associations" by Cathie Clarke (University of Cambridge) who presents the theory of star formation and dynamical evolution of stellar systems, Robert Mathieu (University of Wisconsin) who discusses the kinematics of star cluster s and associations, and I. Neill Reid (Space Telescope Science Institute) who provides an overview of the stellar populations in the Milky Way and speculates on from whence came the Sun. As part of the Saas-Fee Advanced Course Series, the book offers an in-depth introduction to the field serving as a starting point for Ph.D. research and as a reference work for professional astrophysicists.
Astrophysics --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Stars --- Formation. --- Evolution. --- Clusters. --- Birth, Stellar --- Formation, Star --- Formation, Stellar --- Stellar birth --- Stellar formation --- Clusters of stars --- Groups of stars --- Star clusters --- Stellar evolution --- Groups --- Physics. --- Observations, Astronomical. --- Astronomy --- Astrophysics. --- Cosmology. --- Astrophysics and Astroparticles. --- Astronomy, Observations and Techniques. --- Observations. --- Evolution --- Compact objects (Astronomy) --- Astronomy—Observations. --- Deism --- Metaphysics --- Astronomical observations --- Observations, Astronomical --- Astronomical physics --- Cosmic physics --- Physics
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In this PhD thesis, which was nominated for publication in this series by the Astronomical Institute at Charles University, Prague, the author investigates the orbital evolution of an initially thin stellar disc around a supermassive black hole, considering various perturbative sources of gravity. His findings, obtained by both direct numerical N-body modelling and using standard perturbation methods, offer a viable theoretical explanation for the observed configuration of young stars in the Galactic Centre. This marks a significant contribution to a topic of great interest in contemporary astrophysics. The author also shows in his thesis that a secular instability (m = 1 mode) may occur in the embedding spherical cluster of old stars. This increases the richness of possible evolution scenarios of the embedding cluster and may lead to effective feeding of supermassive black holes through tidal disruption of stars on extremely eccentric orbits.
Astronomy -- Romania -- History -- Congresses. --- Astronomy. --- Solar system -- Congresses. --- Solar system. --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astrophysics --- Stars --- Clusters. --- Clusters of stars --- Groups of stars --- Star clusters --- Groups --- Physics. --- Astrophysics. --- Astrophysics and Astroparticles. --- Theoretical, Mathematical and Computational Physics. --- Physical sciences --- Space sciences --- Mathematical physics. --- Physical mathematics --- Physics --- Astronomical physics --- Astronomy --- Cosmic physics --- Mathematics
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Star clusters are some of the most beautiful objects in the night sky and are prime targets for observational astronomers as well as astrophotographers. Using some of the newer technologies and larger and more powerful telescopes available today to amateur astronomers, many more of these dazzling groupings of stars can now be located and viewed throughout the year. In this field guide that will help you to decide what to look for and where to look for it, as well as what equipment to use, you will find what you need, whether you are a beginner in the field or an experienced observer. So on the next clear night, take your book and your binoculars or telescope and maybe your camera outside and see what new wonders can be revealed to you. You won’t be disappointed!
Physique. --- Stars -- Clusters. --- Stars. --- Stars --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astronomy - General --- Astrophysics --- Clusters --- Astronomy. --- Clusters. --- Clusters of stars --- Groups of stars --- Star clusters --- Groups --- Popular works. --- Observations, Astronomical. --- Astronomy --- Popular Science. --- Popular Science in Astronomy. --- Astronomy, Observations and Techniques. --- Observations. --- Physical sciences --- Space sciences --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical
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