The Shadow of Black Holes PDF Download
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Author: Arne Grenzebach
Publisher: Springer
ISBN: 3319300660
Category : Science
Languages : en
Pages : 106
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Book Description
This book introduces an analytic method to describe the shadow of black holes. As an introduction, it presents a survey of the attempts to observe the shadow of galactic black holes. Based on a detailed discussion of the Plebański–Demiański class of space-times, the book derives analytical formulas for the photon regions and for the boundary curve of the shadow as seen by an observer in the domain of outer communication. It also analyzes how the shadow depends on the motion of the observer. For all cases, the photon regions and shadows are visualized for various values of the parameters. Finally, it considers how the analytical formulas can be used for calculating the horizontal and vertical angular diameters of the shadow, and estimates values for the black holes at the centers of our Galaxy near Sgr A* and of the neighboring galaxy M87.
Author: Arne Grenzebach
Publisher: Springer
ISBN: 3319300660
Category : Science
Languages : en
Pages : 106
Get Book Here
Book Description
This book introduces an analytic method to describe the shadow of black holes. As an introduction, it presents a survey of the attempts to observe the shadow of galactic black holes. Based on a detailed discussion of the Plebański–Demiański class of space-times, the book derives analytical formulas for the photon regions and for the boundary curve of the shadow as seen by an observer in the domain of outer communication. It also analyzes how the shadow depends on the motion of the observer. For all cases, the photon regions and shadows are visualized for various values of the parameters. Finally, it considers how the analytical formulas can be used for calculating the horizontal and vertical angular diameters of the shadow, and estimates values for the black holes at the centers of our Galaxy near Sgr A* and of the neighboring galaxy M87.
Author: John W. Moffat
Publisher:
ISBN: 0190650729
Category : Science
Languages : en
Pages : 233
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Book Description
The Shadow of the Black Hole shares the entertaining history of black holes.
Author: Seth Fletcher
Publisher: HarperCollins
ISBN: 0062312030
Category : Science
Languages : en
Pages : 311
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Book Description
Einstein’s Shadow follows a team of elite scientists on their historic mission to take the first picture of a black hole, putting Einstein’s theory of relativity to its ultimate test and helping to answer our deepest questions about space, time, the origins of the universe, and the nature of reality Photographing a black hole sounds impossible, a contradiction in terms. But Shep Doeleman and a global coalition of scientists are on the cusp of doing just that. With exclusive access to the team, journalist Seth Fletcher spent five years following Shep and an extraordinary cast of characters as they assembled the Event Horizon Telescope, a worldwide network of radio telescopes created to study black holes. He witnessed the team’s struggles, setbacks, and breakthroughs, and, along the way, Fletcher explored the latest thinking on the most profound questions about black holes: Do they represent a limit to our ability to understand reality? Or will they reveal the clues that lead to the long-sought theory of everything? Fletcher transforms astrophysics into something exciting, accessible, and immediate, taking us on an incredible adventure to better understand the complexity of our galaxy, the boundaries of human perception and knowledge, and how the messy endeavor of science really works. Weaving a compelling narrative account of human ingenuity with excursions into cutting-edge science, Einstein’s Shadow is a tale of great minds on a mission to change the way we understand our universe—and our place in it.
Author: David Macinnis Gill
Publisher: Harper Collins
ISBN: 0062073370
Category : Young Adult Fiction
Languages : en
Pages : 275
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Book Description
A sci-fi thrill ride—incredible action, inventive world-building, deadly humor, and more—for fans of movie classics such as Blade Runner and Mad Max! This is the companion to Invisible Sun and Black Hole Sun, which Suzanne Collins, the author of The Hunger Games, called "imaginative and action-packed." Characters return, new characters are introduced, and the action never stops. Readers embraced the first two books in acclaimed author David Macinnis Gill's trilogy about Durango, Mimi (his nano-implant with a biting wit), and Vienne (his second-in-command), calling the books non-put-downable, thrilling, funny, and totally satisfying. A surefire bet for fans of dystopian sci-fi, from The Hunger Games to Battlestar Galactica. Cinematic action, rapid-fire dialogue, a futuristic setting on a terraformed Mars, and tragic romance—Shadow on the Sun is an unstoppable adrenaline rush!
Author: David Macinnis Gill
Publisher: Harper Collins
ISBN: 0061998338
Category : Young Adult Fiction
Languages : en
Pages : 360
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Book Description
Durango is playing the cards he was dealt. And it’s not a good hand. He’s lost his family. He’s lost his crew. And he’s got the scars to prove it. You don’t want to mess with Durango.
Author: Anna Crowley Redding
Publisher: Feiwel & Friends
ISBN: 1250622336
Category : Juvenile Nonfiction
Languages : en
Pages : 176
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Book Description
In Black Hole Chasers, award-winning investigative journalist Anna Crowley Redding presents the riveting true story of one of the most inspiring scientific breakthroughs of our lifetime—the Event Horizon Telescope team's reveal of the first image of a super massive black hole. In April 2019, the Event Horizon Telescope Team unveiled the first ever image of a super massive black hole. This inspiring scientific breakthrough took years of hard work, innovative thinking, and a level of global cooperation never seen before. The challenge was immense. The goal was impossible. They would need a telescope as big as the earth itself. The technology simply didn’t exist. And yet, a multi-national team of scientists was able to show the world an image of something previously unseeable. Based off extensive research and hours interviews with many of the team's ground-breaking scientist, physicists, and mathematicians, Black Hole Chasers is a story of unique technological innovation and scientific breakthroughs, but more importantly, it's a story of human curiosity and triumph.
Author: Cécile Dewitt-Morette
Publisher: Springer Science & Business Media
ISBN: 9789027704351
Category : Science
Languages : en
Pages : 248
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Book Description
Proceedings of IAU Symposium No. 64, Warsaw, Poland, September 5-8, 1973
Author: Clifford M. Will
Publisher:
ISBN: 0198842120
Category : Science
Languages : en
Pages : 305
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Book Description
Will and Yunes chronicle the latest scientific discoveries as they put Einstein's theory to the test in astonishing ways. They document the struggles to reconcile gravity with quantum mechanics, dark matter, and the scientific process to seek a new understanding of the cosmos. Describes cutting-edge theoretical physics without equations.
Author: Neil deGrasse Tyson
Publisher: W. W. Norton & Company
ISBN: 9780393062243
Category : Religion
Languages : en
Pages : 392
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Book Description
A collection of essays on the cosmos, written by an American Museum of Natural History astrophysicist, includes "Holy Wars," "Ends of the World," and "Hollywood Nights."
Author: David Macinnis Gill
Publisher: Greenwillow Books
ISBN: 9780062073327
Category : Juvenile Fiction
Languages : en
Pages : 0
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Book Description
You don't want to mess with Durango. He left his crew behind. His father is dead. And he's going to prove himself to Vienne, even if he dies trying. As he races through flood and fire and across a violent and terrifying planet, there's a 97% chance he's going to die trying. But who's counting.
