Download or read book 72 Beautiful Galaxies written by Dr Stephen C Perrenod and published by Stephen Perrenod. This book was released on 2016-08-16 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In 72 Beautiful Galaxies we take you on a trip from relatively near to very far away in the universe, with images of 72 galaxies - and beyond that you will also see hundreds of galaxies as they are found in clusters. You will see that galaxies come in many shapes and sizes, with major categories being spirals and ellipticals. There are also many irregular galaxies and galaxies undergoing mergers or being cannibalized by other galaxies. Galaxies vary tremendously in their masses, in their luminosities, in their shapes, in their star formation rates, and in the amount of gas and dust they contain. And some are near, in cosmic terms, and some are billions of light-years away, at the edge of the universe. Many are found in groups, including our own Milky Way. Others are found within very large clusters. This book has been designed to provide you with some appreciation of the variety of galaxy types, as well as their beauty, and some feeling for what astronomers are seeking to understand as we explore and discover more and more galaxies with the Great Telescopes of our day.
Download or read book Dark Matter Dark Energy Dark Gravity written by Stephen Perrenod and published by Createspace Independent Publishing Platform. This book was released on 2013-04-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dark Matter, Dark Energy and Dark Gravity make life possible!This book for the lay reader provides a summary of the latest astrophysical observational results and theoretical insights into what we know and what we hope to learn about dark matter, dark energy, and dark gravity.How did the profound beauty of our Earth, our Solar System, our Milky Way galaxy and indeed our universe unfold? Dark matter, dark energy, and dark gravity have made all the difference in how the universe has developed, and have been key to creating the overall environment that makes life possible. We have only recently developed the ability to begin unlocking their secrets, thus providing a deeper insight into how a universe of our type is possible. It seems that because of dark matter, dark energy and dark (weak) gravity, our universe has the right attributes for the development of complex structure and the evolution of intelligent life that can engage in the quest to understand our world. These "dark" or more hidden attributes of the cosmos have very good outcomes.In particular, the existence of dark matter makes it easier to form complex structures, including galaxies, stars and planets through gravitational collapse of denser regions of the universe. Planets are the most suitable abodes for the development of life. Dark energy acts to extend the lifetime of the universe by counteracting gravity and driving continued expansion of the universe.Even as far back as the 1930s there has been evidence that most of the matter in the universe was not visible via electromagnetic radiation (optical light, radio waves, etc.). By the last few decades of the 20th century, the case for a considerable amount of this dark matter was very strong. It is the second largest contributor to the total mass-energy of the universe. We don't know what it is and there are various candidates to explain it; nevertheless we see the gravitational effects of dark matter everywhere on the largest scales. Recent observational results indicate that dark matter dominates by a factor of 6 relative to the ordinary matter that makes up stars, planets, and living things.We now know that the major contributor to the mass-energy of the universe is not the substantial dark matter, but the 'newer' so-called dark energy. Dark energy acts to some extent as a negative gravity, and for the last several billion years has driven the expansion of the universe to a faster and faster pace, overcoming even the gravitational effect of dark matter. We have a general idea that it is the irreducible energy found in every volume of space, even in the absence of matter - in the vacuum. We don't understand why it takes the value that it does, one that is small in quantum particle physics terms, but nevertheless is of great significance on the large cosmological scale of the universe. The third important aspect to consider is not a mass-energy component, but the nature of gravity and space-time. The big question here is - why is gravity so relatively weak, as compared to the other 3 forces of nature? These 3 forces are the electromagnetic force, the strong nuclear force, and the weak nuclear force. Gravity is different - it has a dark or hidden side. It may very well operate in extra dimensions beyond the normal 4 dimensions of space-time that we can observe. This is what we mean in this book by "dark gravity".
Download or read book Unveiling Galaxies written by Jean-René Roy and published by Cambridge University Press. This book was released on 2018 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thought provoking study of the powerful impact of images in guiding astronomers' understanding of galaxies through time.
Download or read book The Cambridge Photographic Atlas of Galaxies written by Michael König and published by Cambridge University Press. This book was released on 2017-09-07 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference atlas showcases around 250 beautiful galaxies within an amateur astronomer's reach and uses them to explain current astrophysical research.
Download or read book The Most Interesting Galaxies in the Universe written by Joel L Schiff and published by Morgan & Claypool Publishers. This book was released on 2018-09-13 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prior to the 1920s it was generally thought, with a few exceptions, that our galaxy, the Milky Way, was the entire Universe. Based on the work of Henrietta Leavitt with Cepheid variables, astronomer Edwin Hubble was able to determine that the Andromeda Galaxy and others had to lie outside our own. Moreover, based on the work of Vesto Slipher, involving the redshifts of these galaxies, Hubble was able to determine that the Universe was not static, as had been previously thought, but expanding. The number of galaxies has also been expanding, with estimates varying from 100 billion to 2 trillion. While every galaxy in the Universe is interesting just by its very fact of being, the author has selected 51 of those that possess some unusual qualities that make them of some particular interest. These galaxies have complex evolutionary histories, with some having supermassive black holes at their core, others are powerful radio sources, a very few are relatively nearby and even visible to the naked eye, whereas the light from one recent discovery has been travelling for the past 13.4 billion years to show us its infancy, and from a time when the Universe was in its infancy. And in spite of the vastness of the Universe, some galaxies are colliding with others, embraced in a graceful gravitational dance. Indeed, as the Andromeda Galaxy is heading towards us, a similar fate awaits our Milky Way. When looking at a modern image of a galaxy, one is in awe at the shear wondrous nature of such a magnificent creation, with its boundless secrets that it is keeping from us, its endless possibilities for harboring alien civilizations, and we remain left with the ultimate knowledge that we are connected to its glory.
Download or read book Deep Sky Companions The Caldwell Objects written by Stephen James O'Meara and published by Cambridge University Press. This book was released on 2016-09-26 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Appendix C William Herschel: the greatest visual observer of all time - by Larry Mitchell -- Appendix D Image credits -- Index
Download or read book 1 001 Celestial Wonders to See Before You Die written by Michael E. Bakich and published by Springer Science & Business Media. This book was released on 2010-07-10 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1,001 Celestial Wonders is a guide to the night sky's brightest and most fascinating objects. Each target is accessible to amateur astronomers using medium-sized telescopes from a dark site. In fact, many are so bright they remain visible under moderate light pollution, as from the outskirts of a city or the suburbs of a town. The book provides a chronological target list, making it easy to use. No matter what night you choose, this book will show you many of the most memorable objects to observe, whether you are using a small telescope or even binoculars, or an instrument of larger aperture. This is far more than just a list of interesting objects. It is structured so that objects of various observing difficulty are included, which will help readers become better observers, both encouraging beginners and challenging long-time amateur astronomers. This book is designed to be easy-to-use at the telescope, and observers will appreciate each object's standardized layout and the book's chronological organization. Finally, many amateur astronomers function best when presented with a list! Even the Meade Autostar® controller features a 'best tonight' list (although the list is far less comprehensive and detailed than the catalog provided in this book), a feature that has proved extremely popular. 1,001 Celestial Wonders offers a life-list of objects any observer would be proud to complete.
Download or read book Nucleosynthesis and Chemical Evolution of Galaxies written by Bernard E. J. Pagel and published by Cambridge University Press. This book was released on 1997-09-04 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: A lucid, wide-ranging graduate textbook on the topical subject of galactic chemical evolution - by a pioneer of the field.
Download or read book The Caldwell Catalogue written by Patrick Moore and published by CRC Press. This book was released on 2001-12-01 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some time ago, the renowned astronomer Patrick Moore - best known for his BBC TV programme The Sky at Night which has screened continuously for 42 years - devised a catalogue of 109 deep space (galaxies, nebulae, clusters) objects to which he has lent his middle name Caldwell. Thus Caldwell objects, numbered C1 to C109.Why Caldwell and not Moore? The most famous of all catalogues of astronomical objects was created by Charles Messier in 1774, and these are designated by M1 to M109, so Patrick Moore could not use his own surname, but instead elected to use his middle name Caldwell. And Patrick Moore chose 109 object to match Messier, though it is important to understand that not one of Patrick Moore's objects overlaps with Charles Messier's.Messier was in fact a comet hunter - in the eighteenth century comets were not understood at all and had huge significance when they appeared blazing across the clear skies, as yet free from the light pollution we experience. He catalogued galaxies, nebulae and clusters not because he was particularly interested in those objects, but because he did not want these objects to be confused with ne
Download or read book 101 Amazing Sights of the Night Sky written by George Moromisato and published by Adventure Publications. This book was released on 2017-02-20 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is there anything more wondrous and alluring than the night sky? You've seen the stars, and you know about the constellations--but there's so much more to discover! George Moromisato's magnificent full-color guide introduces you to 101 amazing sights, from Saturn's famous rings to the Andromeda Galaxy. Learn what to look for and when and where to find it! This astronomy book is perfect for beginners, so many objects can be seen with the unaided eye or binoculars, while others simply require a small telescope. Book Features: Guide to 101 phenomena and objects of the night sky, ranked by beauty, accessibility and historical importance Information about equipment needed, from binoculars to small telescopes Full-color photographs, including many from NASA Astrophotography tips on taking pictures of the night sky, such as snapping shots with a phone through a telescope Charts to know when to look for solar eclipses, meteor showers and other notable events
Download or read book Making Beautiful Deep Sky Images written by Greg Parker and published by Springer. This book was released on 2016-10-26 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based around the author’s beautiful and sometimes awe-inspiring color images and mosaics of deep-sky objects. The book describes how similar "Hubble class" images can be created by amateur astronomers in their back garden using commercially available telescopes and CCD cameras. Subsequent processing and image enhancement in the "electronic darkroom" is covered in detail as well. A range of telescopes and equipment is considered, from the author’s 11-inch with Hyperstar camera, down to more affordable instruments. Appendices provide links to free software – not available from a single source – and are themselves an invaluable resource.
Download or read book Nebulae Star Clusters Galaxies written by Wolfgang Steinicke and published by BoD – Books on Demand. This book was released on 2019-05-23 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nebulae, star clusters, and galaxies are outside our solar system. They belong to the 'deep sky' and lead the observer to great distances and at the same time the view goes far into the past. The light of the most distant galaxies took billions of years to reach us. No less fascinating is our home galaxy, the Milky Way, offering many bright nebulae and star clusters. The book covers three important topics related to deep-sky objects: history, astrophysics, and observation. When beginners observe an object visually, not knowing anything about it, they will only perceive a faint spot of light - nothing really exciting. So, to get the right 'cosmic' feeling, the view should be enriched with stories about the object's discovery, distance, physical nature, or evolution. Supplied with this kind of information, deep-sky observing becomes a fascinating activity - braving the cold and darkness. Over time, advanced fields such as observation techniques or astrophotography come into play. The book informs the reader about all these topics and offers a comprehensive collection of interesting targets.
Download or read book Galaxy Formation written by Malcolm Longair and published by Springer Science & Business Media. This book was released on 2007-12-12 with total page 1481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delineating the huge strides taken in cosmology in the past ten years, this much-anticipated second edition of Malcolm Longair's highly appreciated textbook has been extensively and thoroughly updated. It tells the story of modern astrophysical cosmology from the perspective of one of its most important and fundamental problems – how did the galaxies come about? Longair uses this approach to introduce the whole of what may be called "classical cosmology". What’s more, he describes how the study of the origin of galaxies and larger-scale structures in the Universe has provided us with direct information about the physics of the very early Universe.
Download or read book Defending the Galaxy written by Maria V. Snyder and published by Maria V. Snyder. This book was released on 2020-11-23 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Year 2522. Oh. My. Stars. Junior Officer Ara Lawrence here, reporting for duty. Again. It's situation critical for the security team and everyone in the base - including my parents - with a new attack from the looters imminent, a possible galaxy-wide crime conspiracy and an unstoppable alien threat. But this all pales in the face of my mind-blowing discovery about the Q-net. Of course, no one believes me. I'm not sure I believe me. It could just be a stress-induced delusion. That's what my parents seem to believe... Their concern for me is hampering my ability to do my job. I know they love me, but with the Q-net in my corner, I'm the only one who can help the security team beat the shadowy aliens from the pits we discovered. We're holding them at bay, for now, but the entire Milky Way Galaxy is in danger of being overrun. With battles on too many fronts, it's looking dire. But one thing I've learned is when people I love are in jeopardy, I'll never give up trying to save them. Not until my dying breath. Which could very well be today...
Download or read book Holstein Friesian Herd book written by Holstein-Friesian Association of America and published by . This book was released on 1974 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Galaxy Formation and Evolution written by Houjun Mo and published by Cambridge University Press. This book was released on 2010-05-20 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: A coherent introduction for researchers in astronomy, particle physics, and cosmology on the formation and evolution of galaxies.
Download or read book Catalog of Copyright Entries written by Library of Congress. Copyright Office and published by . This book was released on 1973 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
