At Galactic Central
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At Galactic Central
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Author : Kate MacLeod
language : en
Publisher: Ratatoskr Press
Release Date : 2018-10-16
At Galactic Central written by Kate MacLeod and has been published by Ratatoskr Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-16 with Fiction categories.
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.
The Nuclei Of Normal Galaxies
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Author : R. Genzel
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Nuclei Of Normal Galaxies written by R. Genzel and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
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.
The Central Regions Of The Galaxy And Galaxies
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Author : International Astronomical Union. Symposium
language : en
Publisher: Springer Science & Business Media
Release Date : 1998-08-31
The Central Regions Of The Galaxy And Galaxies written by International Astronomical Union. Symposium and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-08-31 with Science categories.
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
Revealing The Heart Of The Galaxy
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Author : Robert H. Sanders
language : en
Publisher: Cambridge University Press
Release Date : 2014
Revealing The Heart Of The Galaxy written by Robert H. Sanders and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Science categories.
An insider's view of how the massive black hole was discovered at the Galactic Center.
The Center Of The Galaxy
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Author : Mark Morris
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Center Of The Galaxy written by Mark Morris and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
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.
The Black Hole At The Center Of The Milky Way
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Author : Andreas Eckart
language : en
Publisher: World Scientific
Release Date : 2005-09-14
The Black Hole At The Center Of The Milky Way written by Andreas Eckart and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-09-14 with Science categories.
Reviewing the fundamental instrumental techniques and current observational results, this book unveils the mysteries of the physical processes in the central parsec of our Milky Way: the super-massive black hole embedded in a central stellar cluster as well as the gas and dust in the circumnuclear region.The observations described cover the entire electromagnetic spectrum from decimeter radio-waves to high energy X-ray and γ-rays, and a comprehensive summary of up-to-date astrophysical interpretations is given.The emphasis is put on observational techniques, image processing aspects, and a detailed presentation of the most cutting-edge work carried out in the near-infrared wavelength regime. These recent results include both the first orbits of stars around the central black hole and the multiwavelength variability of the central source./a
Ports Of Call
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Author : Nick Bate
language : en
Publisher:
Release Date : 2018-09-15
Ports Of Call written by Nick Bate and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-15 with categories.
In The Ocean Of Night
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Author : Gregory Benford
language : en
Publisher: Hachette UK
Release Date : 2007-07-31
In The Ocean Of Night written by Gregory Benford and has been published by Hachette UK this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-07-31 with Fiction categories.
A classic novel of man's future and fate, written by the eminent American physicist and award-winning author of Timescape. 2034. An indistinguishable sound is heard from the depths of space and one member of the search and survey team, Nigel, believes he knows its origins. 15 years earlier, he was the astronaut sent to implode a firey comet as it hurtled toward the Asian subcontinent. Once inside the fissure he made an unlikely discovery: an abandoned alien ship. Against his better judgment, Nigel carried out his mission, destroying the vessel-but not before clandestinely removing alien data and technology from on board. Now, as the team sets forth on a new adventure of discovery, Nigel's past will collide with the present, introducing him to wonders beyond human comprehension.
Journey To The Center Of Our Galaxy
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Author : Joel Davis
language : en
Publisher:
Release Date : 1992-09
Journey To The Center Of Our Galaxy written by Joel Davis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-09 with Body, Mind & Spirit categories.
The Black Hole At The Center Of Our Galaxy
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Author : Fulvio Melia
language : en
Publisher: Princeton University Press
Release Date : 2018-06-05
The Black Hole At The Center Of Our Galaxy written by Fulvio Melia and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-05 with Science categories.
Could Einstein have possibly anticipated directly testing the most captivating prediction of general relativity, that there exist isolated pockets of spacetime shielded completely from our own? Now, almost a century after that theory emerged, one of the world's leading astrophysicists presents a wealth of recent evidence that just such an entity, with a mass of about three million suns, is indeed lurking at the center of our galaxy, the Milky Way--in the form of a supermassive ''black hole''! With this superbly illustrated, elegantly written, nontechnical account of the most enigmatic astronomical object yet observed, Fulvio Melia captures all the excitement of the growing realization that we are on the verge of actually seeing this exotic object within the next few years. Melia traces our intellectual pilgrimage to the ''brooding behemoth'' at the heart of the Milky Way. He describes the dizzying technological advances that have recently brought us to the point of seeing through all the cosmic dust to a dark spot in a clouded cluster of stars in the constellation Sagittarius. Carefully assembling the compelling circumstantial evidence for its black hole status, he shows that it is primed to reveal itself as a glorious panorama of activity within this decade--through revolutionary images of its ''event horizon'' against the bright backdrop of nearby, radiating gas. Uniquely, this book brings together a specific and fascinating astronomical subject--black holes--with a top researcher to provide both amateur and armchair astronomers, but also professional scientists seeking a concise overview of the topic, a real sense of the palpable thrill in the scientific community when an important discovery is imminent.
