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At Galactic Central
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Book Synopsis At Galactic Central by : Kate MacLeod
Download or read book At Galactic Central written by Kate MacLeod and published by Ratatoskr Press. This book was released on 2018-10-16 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Galactic Central, a collection of floating cities in a vast, manmade, planetless cloud. Scout Shannon longed to see it since she first heard of it. This place long represented her shining future. But in her less shiny present, she reaches it by smuggling herself aboard a cargo ship and hides in the lower sewer-like levels of the most opulent of the floating cities. Teams of girl assassins still hunt her. Worse, her friends are in danger and don't even know. Scout has to save her friends, because saving her friends means saving her entire planet from enslavement to the Tajaki trade dynasty. Caught between two sides of that dynasty, with a mysterious third party desperate to remove her from the galaxy, Scout is in way over her head. But with her friends, she just might see a path to victory for all of them. "At Galactic Central" the sixth and final book in "The Travels of Scout Shannon" series, a young adult science fiction novel for fans of plucky heroines, girl assassins, political intrigue, and loyal dog sidekicks.
Book Synopsis Proceedings of the Galactic Center Workshop 2002, Astronomische Nachrichten Supplementary Issue 1/2003 by : Angela Cotera
Download or read book Proceedings of the Galactic Center Workshop 2002, Astronomische Nachrichten Supplementary Issue 1/2003 written by Angela Cotera and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our knowledge of the environment of the nucleus of our galaxy has been greatly enhanced, by more extensive and sensitive observations at radio and infrared wavelengths, the advent of high resolution x-ray imaging and spectroscopy, and considerable theoretical activity to understand the nucleus and its components, and their activity. The Galactic Center Workshop 2002 was organized to review recent research on the galactic center, including the latest state-of-the-art observations and important theoretical developments. The workshop covered phenomena on scales ranging from the central several hundred parsecs to the central parsec and within. Each topic was approached from both multi-wavelength observational and theoretical perspectives.
Author :International Astronomical Union. Symposium Publisher :Springer Science & Business Media ISBN 13 :9780792350606 Total Pages :556 pages Book Rating :4.3/5 (56 download)
Book Synopsis The Central Regions of the Galaxy and Galaxies by : International Astronomical Union. Symposium
Download or read book The Central Regions of the Galaxy and Galaxies written by International Astronomical Union. Symposium and published by Springer Science & Business Media. This book was released on 1998-08-31 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the August 1997 symposium. One hundred and ninety- four contributions present comparative studies on the data of the Milky Way and central regions of nearby galaxies. Included is information on galactic bulges, galactic center star clusters, star formation, starbursts, neutral ISM in the galactic center, molecular gas in the nuclei of galaxies, gas dynamics in the galactic center, the central parsecs of the milky way, magnetic and high-energy phenomena, black holes in galaxies, black hole in the galactic center, and black hole powering of AGN and jets. A sampling of topics: diffraction-limited IR speckle masking observations of the central regions of Seyfert galaxies, the stellar content of the Quintuplet cluster, and the structural characteristics of spiral bulges. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis The Center of the Galaxy by : Mark Morris
Download or read book The Center of the Galaxy written by Mark Morris and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation of the Galactic nucleus and its surroundings is necessarily a modem endeavor, for traditional observations made at visual wavelengths have not even begun to penetrate the veil of -30 magnitudes of visual extinction that intercedes. On the other hand, infrared, and especially radio observers find a relatively unobstructed view of the central portion of the Galaxy, so the study of this arena has proceeded apace with the development of these branches of astronomy. Thus, it is no accident that the first IAU sponsored conference to be held on the Galactic center is timed to coincide with the initiation, or the immediate aftennath, of major technical developments at long wavelengths, including infrared array detectors, millimeter-wavelength aperture synthesis, and self-calibration and refmed deconvolution algorithms in aperture synthesis radio astronomy. The center of the Galaxy is also accessible to X and gamma-ray observers, and progress at high energies has been steady, especially as imaging capabilities are being realized at X-ray wavelengths. However, one might expect that the revolution in the high energy domain is still ahead of us, as instruments with larger collecting areas and improved spatial resolution are now being developed. The youth of this subject is evidenced by the relatively small number of meetings that have been devoted to it.
Book Synopsis Detection of Sulphur in the Galactic Center by :
Download or read book Detection of Sulphur in the Galactic Center written by and published by . This book was released on 1983 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Sky River by : Gregory Benford
Download or read book Great Sky River written by Gregory Benford and published by Aspect. This book was released on 2009-10-31 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third novel in the award-winning author's classic Galactic Center series is available once again. "A challenging, pacesetting work of hard science fiction that should not be missed" (Los Angeles Times). Nearly 100,000 years after first contact with the machines that dominate the universe, a few hundred humans survive. Trapped on Snowglade, a barren world near the center of the galaxy, people like Killeen of Family Bishop and his child Toby are primitive scavengers, homeless and hunted by the ruling "mechs." Then suddenly, a strange cosmic entity-neither organic nor cybernetic nor living matter-reaches out from a black hole to speak with Killeen. But can this fallen descendant of starfarers understand this alien being in time-and seize his only chance to save his family and mankind from final annihilation?
Download or read book The Milky Way written by Moiya McTier and published by . This book was released on 2023-08-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: NAMED A BEST BOOK OF 2022 BY PUBLISHERS WEEKLY NAMED A BEST AUDIOBOOK OF 2022 BY BOOKPAGE Astrophysicist and folklorist Dr. Moiya McTier channels The Milky Way in this approachable and utterly fascinating autobiography of the titular galaxy, detailing what humans have discovered about everything from its formation to its eventual death, and what more there is to learn about this galaxy we call home. After a few billion years of bearing witness to life on Earth, of watching one hundred billion humans go about their day-to-day lives, of feeling unbelievably lonely, and of hearing its own story told by others, The Milky Way would like a chance to speak for itself. All one hundred billion stars and fifty undecillion tons of gas of it. It all began some thirteen billion years ago, when clouds of gas scattered through the universe's primordial plasma just could not keep their metaphorical hands off each other. They succumbed to their gravitational attraction, and the galaxy we know as the Milky Way was born. Since then, the galaxy has watched as dark energy pushed away its first friends, as humans mythologized its name and purpose, and as galactic archaeologists have worked to determine its true age (rude). The Milky Way has absorbed supermassive (an actual technical term) black holes, made enemies of a few galactic neighbors, and mourned the deaths of countless stars. Our home galaxy has even fallen in love. After all this time, the Milky Way finally feels that it's amassed enough experience for the juicy tell-all we've all been waiting for. Its fascinating autobiography recounts the history and future of the universe in accessible but scientific detail, presenting a summary of human astronomical knowledge thus far that is unquestionably out of this world.
Book Synopsis Active Galactic Nuclei by : Julian H. Krolik
Download or read book Active Galactic Nuclei written by Julian H. Krolik and published by Princeton University Press. This book was released on 2021-03-09 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive treatment of active galactic nuclei--the cosmic powerhouses at the core of many distant galaxies. The term active galactic nuclei refers to quasars, radio galaxies, Seyfert galaxies, blazars, and related objects, all of which are believed to share a similar central engine--a supermassive black hole many times the mass of the Sun. Astrophysicists have studied these phenomena for the past several decades and have begun to develop a consensus about many of their properties and internal mechanisms. Julian Krolik, one of the world's leading authorities on the subject, sums up leading ideas from across the entire range of research, making this book an invaluable resource for astronomers, physicists interested in applications of the theory of gravitation, and graduate students. Krolik begins by addressing basic questions about active galactic nuclei: What are they? How can they be found? How do they evolve? He assesses the evidence for massive black holes and considers how they generate power by accretion. He discusses X-ray and g-ray emission, radio emission and jets, emission and absorption lines, anisotropic appearance, and the relationship between an active nucleus and its host galaxy. He explores the mysteries of what ignites, fuels, and extinguishes active galactic nuclei, and concludes with a general review of where the field now stands. The book is unique in paying careful attention to relevant physics as well as astronomy, reflecting in part the importance of general relativity to understanding active galactic nuclei. Clear, authoritative, and detailed, this is crucial reading for anyone interested in one of the most dynamic areas of astrophysics today.
Download or read book Tides of Light written by Gregory Benford and published by Aspect. This book was released on 2009-09-26 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in a new, revised edition, the fourth book of the Nebula Award-winning author's Galactic Center series is a classic tale of man's future and fate--and the greatest mystery from outer space that humanity has ever encountered.
Book Synopsis The Black Hole at the Center of Our Galaxy by : Fulvio Melia
Download or read book The Black Hole at the Center of Our Galaxy written by Fulvio Melia and published by Princeton University Press. This book was released on 2003 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: With this superbly illustrated, elegantly written, nontechnical account of the most enigmatic astronomical object yet observed, Melia captures all the excitement of the growing realization that humans are on the verge of actually seeing this exotic black hole object within the next few years. 39 illustrations.
Book Synopsis Physics of the Galaxy and Interstellar Matter by : Helmut Scheffler
Download or read book Physics of the Galaxy and Interstellar Matter written by Helmut Scheffler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book is a translation of the original German edition (published in 1982) with some minor corrections and improvements. The guide to sup plementary and advanced literature given in the Appendix, however, has been brought up to date. This book is addressed primarily to students taking astronomy as a prin cipal or subsidiary subject, and to scientists of related fields, but amateur as tronomers should also be able to profit from it. For most chapters an elementary knowledge of mathematics and physics will be sufficient, however, Chaps. 5 and 6 impose somewhat greater requirements. In addition the reader should already be acquainted with the basic concepts of stellar physics as treated in introduc tory books, including the spectral types, the system of stellar magnitudes and colours, absolute magnitudes and luminosities, the Herlzsprung-Russell dia gram and its interpretation. A modem textbook should use SI units. On the other hand, the use of the cgs system is still the prevailing custom in astrophysics - together with the special units of astronomy: length is quoted in parsecs [pc], mass in solar masses [M0] and time in years [a]. We have therefore compromised and employed both cgs and SI units in this book, whichever was the appropriate choice in each instance. A table for conversion of cgs units into SI units and vice versa is given in the Appendix.
Book Synopsis The Nuclei of Normal Galaxies by : R. Genzel
Download or read book The Nuclei of Normal Galaxies written by R. Genzel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our Galactic center's proximity allows astronomers to study physical pro cesses within galactic nuclei at a level of detail that will never be possible in the more distant, but usually also more spectacular, extragalactic systems. Recent advances in instrumentation from the radio, through the submillime ter and infrared wavebands, and out to the X- and "'(-ray bands now allow observations of the Galactic Center over thirteen orders of magnitude in wave length. Our knowledge about the central few hundred parsecs of our Galaxy has consequently increased vastly over the past decade. The same new instru ments provide high resolution, high quality measurements of nearby ''normal'' galactic nuclei; that is, nuclei whose modest energy output is comparable to that of our own (and most other) galaxies. Theorists, spurred in part by the new observations, have been able to refine models of the energetics, dynam ics, and evolution of the gas and stellar systems deep within galactic nuclei.
Book Synopsis The Galactic Supermassive Black Hole by : Fulvio Melia
Download or read book The Galactic Supermassive Black Hole written by Fulvio Melia and published by Princeton University Press. This book was released on 2007 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Book Synopsis Over Freezing Altitudes by : Kate MacLeod
Download or read book Over Freezing Altitudes written by Kate MacLeod and published by Ratatoskr Press. This book was released on 2018-09-12 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Having escaped yet another closing trap, Scout Shannon finds herself on a snowbound mountaintop far from civilization. With assassins eager to kill her, laying low on an alien world is the smartest play. But wherever Scout goes, trouble follows. And a hamlet in the mountains gets far more remote when girl assassins destroy the only means back to civilization. Now Scout and her dogs face a long, cold climb back to the frozen star port city, her only guide, a girl whose sister Scout killed when fighting for her life. Can she get to safety before the girl learns the truth about Scout? And what secrets of her own is this strange girl keeping? "Over Freezing Altitudes" the fifth book in "The Travels of Scout Shannon" series, a young adult science fiction novel for fans of resourceful heroines, survival in extreme environments, girl assassins and loyal dog sidekicks.
Book Synopsis Across the Sea of Suns by : Gregory Benford
Download or read book Across the Sea of Suns written by Gregory Benford and published by Aspect. This book was released on 2007-07-31 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Nebula Award-winning author comes a newly revised edition of this story in his classic Galactic Center series. 2076: Technology has propelled the world into a new age of enlightenment. Nigel (from In the Ocean of Night) has left Earth to explore space for alien life. But while on this captivating mission, humanity's birthplace has fallen prey to attack and its seas are seeded with alien lifeforms. Now, Nigel is left to search for the only savior he knows-the one who saved him once before-the alien machine called the "Snark." Having left the solar system and turned traitor to its alien masters, Nigel is unsure of the Snark's new allegiance. Is the Snark a friend? Or will it also turn on Nigel... proving to be a deadly foe?
Book Synopsis The Voices Down Under by : William L Stolley
Download or read book The Voices Down Under written by William L Stolley and published by iUniverse. This book was released on 2010-10-26 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: A crime baffles the Australian police a young woman washed ashore with unexplainable injuries as a cause for death. Her birth certificate lists Rollo, Kansas a town that no longer exists as her place of origin. Well? the head of security asks. What do you think we should do? Only one conclusion to draw, Han commented after they reviewed the report. Dont you agree? Master Li feared Hans overwhelming logical conclusion, one that threatens to bring down the newly formed World Psychic Organization a rogue. and not just any rogue, Han continued when Li did not respond, a serial killer with advanced psychic ability. Since he has evaded Master Lis detection, who knows where or when he will strike next? Li took in a deep breath and pushed his plate of Running Elks delicacies away. He lost his appetite. Hes ruthless, Han commented. You wont be able to stop him as you did the others. I know, I know, Master Li said as he rose and walked to the window. A dark cloud has descended over us, Han. This rogue represents the kind of threat weve always dreaded, he said as he gazed out at the cold February landscape. Psychic pitted against psychic in a duel to the death Please visit: www.williamstolley.com for additional plot information and links to William L Stolleys other works in this series, Books I, II, and III in The Voices Saga, published by iUniverse Press.
Download or read book The Galaxy written by Gerry Gilmore and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Milky Way Galaxy offers a unique opportunity to study the structure and contents of a major stellar system in three dimensions, at high spatial and spectral resolution, and to very large galactocentric distances. This potential can be realised only by statistical surveys of large areas of the sky, and by detailed study of specific regions with exceptional properties, such as the Galactic centre, and of specific classes of object, such as the globular clusters. The acquisition of such data from a variety of ground-based and satellite surveys has been a primary topic of Galactic research for some years. Several such surveys have been completed recently, and have led to a substantial modification of our understanding of Galactic structure and evolution. The importance of the ability of satellite observatories to survey and to study wavelengths which are inaccessible from the ground is evident in the wealth of data discussed and analysed in this volume which is derived from satellites, specifically COS-B, HEAD-I, HEAO-3, IRAS, PIONEER-lO, SAS-2, and TENMA. The cru cial role of ground-based observations to complement and comprehend the satellite data is also well evident. Similarly, the major ground-based studies whose results are reported here illustrate the necessity for carefully conceived and executed very large scale surveys of many types of object and many parts of parameter space before a coherent picture of the Galaxy will be available.
