Download or read book Radio Pulsars An Astrophysical Key to Unlock the Secrets of the Universe written by Marta Burgay and published by American Institute of Physics. This book was released on 2011-08-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers a broad range of radio pulsar-related topics, which were presented and discussed at the conference held in Chia (Sardinia, Italy) in October 2010. At that time, the first unexpected discoveries of some new large scale pulsar surveys began to appear, while the recent strong efforts of the pulsar scientific community in the fields of timing and of the "timing arrays" led to many exciting results. Moreover, fall 2010 turned out to be the right time to elaborate on the first theoretical consequences from the unprecedented database of gamma-ray data collected by Fermi and Agile satellites. As stated by Jocelyn Bell - whose 45 year career were celebrated during the conference - the radio pulsar field "keeps re- inventing itself [....] and this pattern has continued at this meeting with once again intriguing, fascinating results being presented."
Download or read book Pulsar Astronomy written by Andrew Lyne and published by Cambridge University Press. This book was released on 2022-08-04 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive introduction to pulsars and radio-emitting neutron stars, including observational and theoretical concepts and applications.
Download or read book Revealing the Most Energetic Light from Pulsars and Their Nebulae written by David Carreto Fidalgo and published by Springer. This book was released on 2019-07-17 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the extraordinary observation of TeV gamma rays from the Crab Pulsar, the most energetic light ever detected from this type of object. It presents detailed information on the painstaking analysis of the unprecedentedly large dataset from the MAGIC telescopes, and comprehensively discusses the implications of pulsed TeV gamma rays for state-of-the-art pulsar emission models. Using these results, the book subsequently explores new testing methodologies for Lorentz Invariance Violation, in terms of a wavelength-dependent speed of light. The book also covers an updated search for Very-High-Energy (VHE), >100 GeV, emissions from millisecond pulsars using the Large Area Telescope on board the Fermi satellite, as well as a study on the promising Pulsar Wind Nebula candidate PSR J0631. The observation of VHE gamma rays is essential to studying the non-thermal sources of radiation in our Universe. Rotating neutron stars, also known as pulsars, are an extreme source class known to emit VHE gamma rays. However, to date only two pulsars have been detected with emissions above 100 GeV, and our understanding of their emission mechanism is still lacking.
Download or read book The Strongest Magnetic Fields in the Universe written by Vasily S. Beskin and published by Springer. This book was released on 2016-01-29 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume extends the ISSI series on magnetic fields in the Universe into the domain of what are by far the strongest fields in the Universe, and stronger than any field that could be produced on Earth. The chapters describe the magnetic fields in non-degenerate strongly magnetized stars, in degenerate stars (such as white dwarfs and neutron stars), exotic members called magnetars, and in their environments, as well as magnetic fields in the environments of black holes. These strong fields have a profound effect on the behavior of matter, visible in particular in highly variable processes like radiation in all known wavelengths, including Gamma-Ray bursts. The generation and structure of such strong magnetic fields and effects on the environment are also described.
Download or read book Clocks in the Sky written by Geoff McNamara and published by Springer Science & Business Media. This book was released on 2009-04-24 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsars are rapidly spinning neutron stars, the collapsed cores of once massive stars that ended their lives as supernova explosions. In this book, Geoff McNamara explores the history, subsequent discovery and contemporary research into pulsar astronomy. The story of pulsars is brought right up to date with the announcement in 2006 of a new breed of pulsar, Rotating Radio Transients (RRATs), which emit short bursts of radio signals separated by long pauses. These may outnumber conventional radio pulsars by a ratio of four to one. Geoff McNamara ends by pointing out that, despite the enormous success of pulsar research in the second half of the twentieth century, the real discoveries are yet to be made including, perhaps, the detection of the hypothetical pulsar black hole binary system by the proposed Square Kilometre Array - the largest single radio telescope in the world.
Download or read book Handbook of Pulsar Astronomy written by D. R. Lorimer and published by Cambridge University Press. This book was released on 2012-10-25 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio pulsars are rapidly rotating, highly magnetized neutron stars. This comprehensive book brings together key observational techniques, background information and a review of the latest results, including the recent discovery of a double pulsar system. Useful software tools are provided to analyze example data, made available on a related website. The work will be of great value to graduate students and researchers wishing to carry out and interpret a wide variety of radio pulsar observations.
Download or read book Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics written by Fridolin Weber and published by Routledge. This book was released on 2017-09-18 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsars, generally accepted to be rotating neutron stars, are dense, neutron-packed remnants of massive stars that blew apart in supernova explosions. They are typically about 10 kilometers across and spin rapidly, often making several hundred rotations per second. Depending on star mass, gravity compresses the matter in the cores of pulsars up to more than ten times the density of ordinary atomic nuclei, thus providing a high-pressure environment in which numerous particle processes, from hyperon population to quark deconfinement to the formation of Boson condensates, may compete with each other. There are theoretical suggestions of even more ""exotic"" processes inside pulsars, such as the formation of absolutely stable strange quark matter, a configuration of matter even more stable than the most stable atomic nucleus, ^T56Fe. In the latter event, pulsars would be largely composed of pure quark matter, eventually enveloped in nuclear crust matter. These features combined with the tremendous recent progress in observational radio and x-ray astronomy make pulsars nearly ideal probes for a wide range of physical studies, complementing the quest of the behavior of superdense matter in terrestrial collider experiments. Written by an eminent author, Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics gives a reliable account of the present status of such research, which naturally is to be performed at the interface between nuclear physics, particle physics, and Einstein's theory of relativity.
Download or read book The Edge of Physics written by Anil Ananthaswamy and published by Houghton Mifflin Harcourt. This book was released on 2011 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The story of modern cosmology told through a tour of the most extraordinary detectors and telescopes in the world.
Download or read book Frontiers Of Space And Ground Based Astronomy written by Willem Wamsteker and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: ROSAT Observations G. HASINGER Max-Planck-Institut flir extraterrestrische Physik, D-85740 Garching, Germany Abstract. This review describes the most recent advances in the study of the extragalactic soft X-ray background and what we can learn about its constituents. The deepest pointed observations with the ROSAT PSPC are discussed. The logN-logS relation is presented, which reaches to the faintest X-ray fluxes and to the highest AGN surface densities ever achieved. The N(>S) relation shows a 2 density in excess of 400 deg- at the faintest fluxes and a flattening below the Einstein Deep Survey limit. About 60% of the extragalactic background has been resolved in the deepest field. Detailed source spectra and first optical and radio identifications will be discussed. The results are put into perspective of the higher energy X -ray background. Key words: X-rays, background radiations, active galactic nuclei. 1. Introduction The extragalactic X-ray background (XRB), discovered about 30 years ago, has been studied extensively with many X-ray experiments, in particular with the satel lites HEAO I and II (see ego Boldt 1987) and with ROSAT (e. g. Hasinger et aI. , 1993). Figure 1 shows a compilation of some of the most recent spectral measure ments for the X-ray background. Over the energy range from 3 to about 100 keY its spectrum can be well approximated by an optically thin thermal bremsstrahlung model with kT ~ 40 keY, while at lower X-ray energies a steepening into a new component has been observed observed (e. g.
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 DIY Radio Telescopes written by Barrett Williams and published by Barrett Williams. This book was released on 2024-06-30 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: ### Discover the Universe from Your Backyard DIY Radio Telescopes Unlock the mysteries of the cosmos with “DIY Radio Telescopes,” a comprehensive guide to building and using your own radio telescope. Perfect for enthusiasts and beginners alike, this eBook dives into the heart of radio astronomy, giving you the tools and knowledge to explore the universe from your own backyard. **What’s Inside** **Introduction to Radio Astronomy** Begin with a solid foundation. Learn what radio astronomy is, its fascinating history, and why crafting your own radio telescope can be a game-changer. **The Basics of Radio Waves** Get to grips with the electromagnetic spectrum and understand how radio waves interact with matter. Discover how to detect radio waves streaming from space. **Essential Components** From antennas to amplifiers, this guide breaks down the crucial parts of a radio telescope. Learn about antennas and dishes, receivers and amplifiers, and the role of feedhorns and waveguides. **Choosing and Building Antennas** Dive into the different types of antennas and how to select the perfect one based on frequency. Detailed DIY construction tips ensure you can build your own with confidence. **Receiver and Amplification** Understand the functions of receivers, how to source components, and the process of assembly and testing. Learn about the importance of amplification, different types of amplifiers, and how to integrate them into your system. **Setup and Software** Find the ideal location for your telescope, master mounting and alignment, and calibrate your system. Explore software tools available for radio telescopes, including data analysis and troubleshooting. **Observing the Cosmos** Plan your observations, identify celestial objects, and interpret data. Discover how to monitor solar activity, map the Milky Way, and explore extragalactic objects and phenomena like pulsars. **Citizen Science and Advanced Projects** Contribute to collaborative projects, share your data, and understand your impact on scientific research. For those ready to take their skills further, delve into advanced techniques like interferometry and remote operation. **Maintenance and Future Directions** This guide also covers troubleshooting, regular maintenance tips, and equipment upgrades. Reflect on your journey and get inspired for future explorations in amateur radio astronomy. **Resources and Ethics** Expand your knowledge with recommended books, journals, and online courses. Join radio astronomy communities and ensure your practices are ethical and safe. Embark on a journey through the stars with “DIY Radio Telescopes.” Whether your goal is to contribute to citizen science or simply satisfy your curiosity, this guide is your gateway to the universe.
Download or read book The Hercules Text written by Jack McDevitt and published by Penguin. This book was released on 2015-04-28 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classic first-contact science fiction novel that launched the career of Jack McDevitt, the national bestselling author of Coming Home—now revised from the original edition, and featuring a new foreword. From a remote corner of the galaxy a message is being sent. The continuous beats of a pulsar have become odd, irregular…artificial. It can only be a code. Frantically, a research team struggles to decipher the alien communication. And what the scientists discover is destined to shake the foundations of empires around this world—from Wall Street to the Vatican…
Download or read book Tour of the Electromagnetic Spectrum written by Ginger Butcher and published by Government Printing Office. This book was released on 2016 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sky at Einstein s Feet written by William C. Keel and published by Springer Science & Business Media. This book was released on 2006-08-29 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specifically traces the impact of Einstein's ideas on astronomy, including the way we interpret observations of stars and galaxies. Includes comments from principals in important discoveries, illuminating the processes behind these results. Presents many applications of relativity that have not been shown in earlier popular-level books and illustrates how deeply physics permeates the way we interpret many astronomical phenomena. Highlights light-travel delays in cosmic jets, using gravitational lensing to trace cosmic mass distribution. Illustrations employ new and archival data from ground- and space-based observatories.
Download or read book Deep Space Propulsion written by K. F. Long and published by Springer Science & Business Media. This book was released on 2011-11-25 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technology of the next few decades could possibly allow us to explore with robotic probes the closest stars outside our Solar System, and maybe even observe some of the recently discovered planets circling these stars. This book looks at the reasons for exploring our stellar neighbors and at the technologies we are developing to build space probes that can traverse the enormous distances between the stars. In order to reach the nearest stars, we must first develop a propulsion technology that would take our robotic probes there in a reasonable time. Such propulsion technology has radically different requirements from conventional chemical rockets, because of the enormous distances that must be crossed. Surprisingly, many propulsion schemes for interstellar travel have been suggested and await only practical engineering solutions and the political will to make them a reality. This is a result of the tremendous advances in astrophysics that have been made in recent decades and the perseverance and imagination of tenacious theoretical physicists. This book explores these different propulsion schemes – all based on current physics – and the challenges they present to physicists, engineers, and space exploration entrepreneurs. This book will be helpful to anyone who really wants to understand the principles behind and likely future course of interstellar travel and who wants to recognizes the distinctions between pure fantasy (such as Star Trek’s ‘warp drive’) and methods that are grounded in real physics and offer practical technological solutions for exploring the stars in the decades to come.
Download or read book Confessions of an Alien Hunter written by Seth Shostak and published by National Geographic Books. This book was released on 2009-03-17 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aliens are big in America. Whether they’ve arrived via rocket, flying saucer, or plain old teleportation, they’ve been invading, infiltrating, or inspiring us for decades, and they’ve fascinated moviegoers and television watchers for more than fifty years. About half of us believe that aliens really exist, and millions are convinced they’ve visited Earth. For twenty-five years, SETI has been looking for the proof, and as the program’s senior astronomer, Seth Shostak explains in this engrossing book, it’s entirely possible that before long conclusive evidence will be found. His informative, entertaining report offers an insider’s view of what we might realistically expect to discover light-years away among the stars. Neither humanoids nor monsters, says Shostak; in fact, biological intelligence is probably just a precursor to machine beings, enormously advanced artificial sentients whose capabilities and accomplishments may have developed over billions of years and far exceed our own. As he explores what, if anything, they would tell us and what their existence would portend for humankind and the cosmos, he introduces a colorful cast of characters and provides a vivid, state-of-the-art account of the past, present, and future of our search for extraterrestrial intelligence.
Download or read book Galileo Unbound written by David D. Nolte and published by Oxford University Press. This book was released on 2018-07-12 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Galileo Unbound traces the journey that brought us from Galileo's law of free fall to today's geneticists measuring evolutionary drift, entangled quantum particles moving among many worlds, and our lives as trajectories traversing a health space with thousands of dimensions. Remarkably, common themes persist that predict the evolution of species as readily as the orbits of planets or the collapse of stars into black holes. This book tells the history of spaces of expanding dimension and increasing abstraction and how they continue today to give new insight into the physics of complex systems. Galileo published the first modern law of motion, the Law of Fall, that was ideal and simple, laying the foundation upon which Newton built the first theory of dynamics. Early in the twentieth century, geometry became the cause of motion rather than the result when Einstein envisioned the fabric of space-time warped by mass and energy, forcing light rays to bend past the Sun. Possibly more radical was Feynman's dilemma of quantum particles taking all paths at once — setting the stage for the modern fields of quantum field theory and quantum computing. Yet as concepts of motion have evolved, one thing has remained constant, the need to track ever more complex changes and to capture their essence, to find patterns in the chaos as we try to predict and control our world.
