Download or read book Journey to the Center of Our Galaxy written by Joel Davis and published by . This book was released on 1992-09 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book The Losers at the Center of the Galaxy written by Mary Winn Heider and published by . This book was released on 2022-05-03 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tuba player without a tuba and his jellyfish-imitating sister cope with their father's disappearance in a middle-grade novel both hilarious and moving by Mary Winn Heider, the author of The Mortification of Fovea Munson. Now in paperback! When Lenny Volpe, former quarterback of the worst professional football team in the nation, leaves his family and disappears, the Chicago Horribles win their first game in a long time. Fans are thrilled. The world seems to go back to normal. Except for the Volpe kids. Winston throws himself into playing the tuba, and Louise starts secret experiments to find a cure for brain injuries, and they're each fine, just fine, coping in their own way. That is, until the investigation of some eccentric teacher behavior and the discovery of a real live bear paraded as the Horribles' new mascot make it clear that things are very much Not Fine. The siblings may just need each other, after all.
Download or read book The Milky Way written by Bart Jan Bok and published by . This book was released on 1941 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the Milky Way galaxy.
Download or read book Revealing the Heart of the Galaxy written by Robert H. Sanders and published by Cambridge University Press. This book was released on 2014 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: An insider's view of how the massive black hole was discovered at the Galactic Center.
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
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.
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?
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.
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
Download or read book The Galactic Center written by Donald C. Backer and published by American Institute of Physics. This book was released on 1987 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 2018-06-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Black Hole written by Marcia Bartusiak and published by Yale University Press. This book was released on 2015-04-28 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The award-winning science writer “packs a lot of learning into a deceptively light and enjoyable read” exploring the contentious history of the black hole (New Scientist). For more than half a century, physicists and astronomers engaged in heated dispute over the possibility of black holes in the universe. The strange notion of a space-time abyss from which not even light escapes seemed to confound all logic. Now Marcia Bartusiak, author of Einstein’s Unfinished Symphony and The Day We Found the Universe, recounts the frustrating, exhilarating, and at times humorous battles over one of history’s most dazzling ideas. Bartusiak shows how the black hole helped revive Einstein’s greatest achievement, the general theory of relativity, after decades of languishing in obscurity. Not until astronomers discovered such surprising new phenomena as neutron stars and black holes did the once-sedate universe transform into an Einsteinian cosmos, filled with sources of titanic energy that can be understood only in the light of relativity. Black Hole explains how Albert Einstein, Stephen Hawking, and other leading thinkers completely changed the way we see the universe.
Download or read book Comets written by P. Andrew Karam and published by Reaktion Books. This book was released on 2017-10-15 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiating fire and ice, comets as a phenomenon seem part science, part myth. Two thousand years ago when a comet shot across the night sky, it convinced the Romans that Julius Caesar was a god. In 1066, Halley’s Comet was interpreted as a foreshadowing of the death of Harold the Second in the Battle of Hastings. Even today the arrival of a comet often feels auspicious, confirming our hopes, fears, and sense of wonder in the universe. In Comets, P. Andrew Karam takes the reader on a far-ranging exploration of these most beautiful and dramatic objects in the skies, revealing how comets and humanity have been interwoven throughout history. He delves into the science of comets and how it has changed over time; the way comets have been depicted in art, religion, literature, and popular culture; and how comets have appeared in the heavens through the centuries. Comprehensive in scope and beautifully illustrated throughout, the book will appeal not only to the budding astronomer, but to anyone with an appreciation for these compelling and remarkable celestial bodies.
Download or read book Discovery of Our Galaxy written by Charles A. Whitney and published by Knopf. This book was released on 2012-06-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a book about the mystery and the passion, the imagination, religion, and poetry, the philosophy, the intellectual flights—and, above all, the people—that have created the science of astronomy, from Thales of Miletus predicting eclipses in the sixth century B.C. to today’s scientists probing the cosmic significance of the mysterious “black holes” discovered in 1970. With authority and charm, the distinguished Harvard astronomer Charles A. Whitney here re-creates the lives and temperaments of the great astronomers and retraces the ingenious arguments, the feats of observation and deduction, and the leaps of intuition by which they have gradually unveiled a picture of the universe and have brought us to an understanding of our own planet’s place in it. Among them: KEPLER, searching the solar system for visible evidence of the transcendent order he believed in GALILEO, constructing the first telescope and proposing the concept of universal gravitation NEWTON, paragon of logic, paradoxically driven by an unshakable belief in himself as God’s appointed prophet to create a world of mathematical certainty and thus expose the wonder of his Father in Heaven WILLIAM HERSCHEL, the nineteenth-century German who may well be considered the father of modern astronomy, first man to chart the nebulae EDWIN HUBBLE, in the present century, discovering and exploring galaxies beyond our own Finally, Professor Whitney makes clear for the layman the fascinating problems astronomers wrestle with today: the mysterious nature of quasars, strange cosmic bodies discovered in 1963; the unknown forces behind cataclysmic explosions recently glimpsed in other galaxies; the elusive nature of “interstellar dust”; the eternal question of how it all began.
Download or read book The Black Hole at the Center of the Milky Way written by Andreas Eckart and published by Imperial College Press. This book was released on 2005 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ?-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.
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?
