High Resolution X Ray Spectroscopy Of The Black Hole Cygnus X 1 With The Chandra X Ray Observatory
DOWNLOAD
Download High Resolution X Ray Spectroscopy Of The Black Hole Cygnus X 1 With The Chandra X Ray Observatory PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get High Resolution X Ray Spectroscopy Of The Black Hole Cygnus X 1 With The Chandra X Ray Observatory book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
High Resolution X Ray Spectroscopy Of The Black Hole Cygnus X 1 With The Chandra X Ray Observatory
DOWNLOAD
Author : Manfred Hanke
language : en
Publisher:
Release Date : 2007
High Resolution X Ray Spectroscopy Of The Black Hole Cygnus X 1 With The Chandra X Ray Observatory written by Manfred Hanke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Fast Spectral Variability In The X Ray Emission Of Accreting Black Holes
DOWNLOAD
Author : Chris Skipper
language : en
Publisher: Springer
Release Date : 2014-09-04
Fast Spectral Variability In The X Ray Emission Of Accreting Black Holes written by Chris Skipper and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-04 with Science categories.
This thesis brings together the various techniques of X-ray spectral analysis in order to examine the properties of black holes that vary in mass by several orders of magnitude. In all these systems it is widely accepted that the X-ray emission is produced by Compton up-scattering of lower energy seed photons in a hot corona or accretion flow, and here these processes are examined through a study of the X-ray spectral variability of each source. A new technique is introduced, in which models are fitted to over 2 million X-ray spectra on time-scales as short as 16 ms, and subsequently it is shown that the nature of the correlation between intensity and spectral index is strongly dependent upon the spectral state of the black hole. Finally, the results of an extensive survey of nearby galactic nuclei using the Chandra X-ray telescope are presented in the form of images and spectra, and these results are used along with data from the literature to search for Compton-thick nuclei.
X Ray Spectroscopic And Timing Studies Of Galactic Black Hole Binaries
DOWNLOAD
Author : Jon Matthew Miller
language : en
Publisher:
Release Date : 2002
X Ray Spectroscopic And Timing Studies Of Galactic Black Hole Binaries written by Jon Matthew Miller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
In rare cases, optical observations of Galactic binary star systems which are bright in the X-ray portion of the electromagnetic spectrum dynamically constrain the mass of one component to be well above theoretical limits for a neutron star. These systems - and systems with similar X-ray properties - are classified as black hole binaries. In this thesis, I report on observations of black hole binaries made with satellite observatories in the X-ray band. The region closest to the black hole is revealed in X-rays due to the viscous heating of matter that is accreted from the companion star. X-ray observations of these systems may therefore reveal General Relativistic effects. A fundamental and testable prediction of General Relativity is that matter may orbit more closely around black holes with significant angular momentum. I have investigated the possibility of black hole "spin" and the geometry of accretion flows in these systems using X-ray continuum spectroscopy, fast variability studies, and the shape of iron fluorescent emission lines in this band. I present evidence for black hole spin in XTE J1550-564, XTE J1650-500, and XTE J1748-248. Spin is not required by high-resolution spectral analysis of the archetypical Galactic black hole - Cygnus X-1 but a thermal accretion disk plus hot corona geometry is confirmed. Studies of XTE J1118+480 and GRS 1758-258 at low X-ray luminosity reveal that models for radiatively-inefficient accretion do not satisfactorily describe the geometry in these systems.
High Resolution Spectroscopy With The Chandra X Ray Observatory
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2007
High Resolution Spectroscopy With The Chandra X Ray Observatory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The capabilities of the Chandra X-ray Observatory and XMM-Newton for high-resolution spectroscopy have brought tradition plasma diagnostic techniques to the study of cosmic plasma. Observations have probed nearly every class of astronomical object, from young proto-starts through massive O starts and black hole binaries, supernova remnants, active galactic nuclei, and the intergalactic medium. Many of these sources show remarkable rich spectra that reveal new physical information, such as emission measure distributions, elemental abundances, accretion disk and wind signatures, and time variability. This talk will present an overview of the Chandra instrumentaton and selected examples of spectral observations of astrophysical and cosmological importance.
Chandra S Cosmos
DOWNLOAD
Author : Wallace H. Tucker
language : en
Publisher: Soho Press
Release Date : 2017-03-28
Chandra S Cosmos written by Wallace H. Tucker and has been published by Soho Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-28 with Science categories.
On July 23, 1999, the Chandra X-Ray Observatory, the most powerful X-ray telescope ever built, was launched aboard the space shuttle Columbia. Since then, Chandra has given us a view of the universe that is largely hidden from telescopes sensitive only to visible light. In Chandra's Cosmos, the Smithsonian Astrophysical Observatory's Chandra science spokesperson Wallace H. Tucker uses a series of short, connected stories to describe the telescope's exploration of the hot, high-energy face of the universe. The book is organized in three parts: "The Big," covering the cosmic web, dark energy, dark matter, and massive clusters of galaxies; "The Bad," exploring neutron stars, stellar black holes, and supermassive black holes; and "The Beautiful," discussing stars, exoplanets, and life. Chandra has imaged the spectacular, glowing remains of exploded stars and taken spectra showing the dispersal of their elements. Chandra has observed the region around the supermassive black hole in the center of our Milky Way and traced the separation of dark matter from normal matter in the collision of galaxies, contributing to both dark matter and dark energy studies. Tucker explores the implications of these observations in an entertaining, informative narrative aimed at space buffs and general readers alike.
Neutron Stars Black Holes And Binary X Ray Sources
DOWNLOAD
Author : H. Gursky
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Neutron Stars Black Holes And Binary X Ray Sources written by H. Gursky 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 2013-04-17 with Science categories.
This book contains a set of articles based on a session of the annual meeting of the American Association for the Advancement of Science held in San Francisco in February, 1974. The reason for the meeting arose from the need to communicate to the largest possible scientific community the dramatic advances which have been made in recent years in the understanding of collapsed objects: neutron stars and black holes. Thanks to an unprecedented resonance between X-ray, y-ray, radio and optical astronomy and important new theoretical developments in relativistic astro physics, a new deep understanding has been acquired of the physical processes oc curring in the late stages of evolution of stars. This knowledge may be one of the greatest conquests of man's understanding of nature in this century. This book aims to give an essential and up-to-date view in this field. The analysis of the physics and astrophysics of neutron stars and black holes is here attacked from both theoretical and experimental points of view. In the experimental field we range from the reviews and catalogues of galactic X-ray sources (R. Gursky and E. Schreier) and pulsars (E. Groth) to the observations of the optical counter part of X-ray sources (P. Boynton) to finally the recently discovered gamma-ray bursts (I. Strong) and pulse astronomy R. B. Partridge).
From X Ray Binaries To Quasars Black Holes On All Mass Scales
DOWNLOAD
Author : Thomas J. Maccarone
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-01-28
From X Ray Binaries To Quasars Black Holes On All Mass Scales written by Thomas J. Maccarone 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 2007-01-28 with Science categories.
This volume brings together contributions from many of the world's leading authorities on black hole accretion. The papers within represent part of a new movement to make use of the relative advantages of studying stellar mass and supermassive black holes, and to bring together the knowledge gained from the two approaches. The topics discussed include black hole observational and theoretical work-variability, spectroscopy, disk-jet connections, and multi-wavelength campaigns on black holes.
Signals From Space
DOWNLOAD
Author : Robert Naeye
language : en
Publisher: Steck-Vaughn
Release Date : 2001
Signals From Space written by Robert Naeye and has been published by Steck-Vaughn this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Juvenile Nonfiction categories.
The Chandra X-ray Observatory is the largest object ever carried into space by the Space Shuttle. Scientists and engineers faced many challenges before they completed the powerful new satellite. But their hard work paid off. The National Aeronautics and Space Administration (NASA) launched Chandra in July 1999. Today, this remarkable satellite sends vivid and astounding X-ray images back to Earth.
Hard X Ray Emission From Galactic Black Hole Candidates
DOWNLOAD
Author : Patrick Lee Nolan
language : en
Publisher:
Release Date : 1982
Hard X Ray Emission From Galactic Black Hole Candidates written by Patrick Lee Nolan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Black holes (Astronomy) categories.
Supermassive Black Holes In The Distant Universe
DOWNLOAD
Author : A.J. Barger
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-09
Supermassive Black Holes In The Distant Universe written by A.J. Barger 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 2013-11-09 with Science categories.
Quasars, and the menagerie of other galaxies with "unusual nuclei", now collectively known as Active Galactic Nuclei or AGN, have, in one form or another, sparked the interest of astronomers for over 60 years. The only known mechanism that can explain the staggering amounts of energy emitted by the innermost regions of these systems is gravitational energy release by matter falling towards a supermassive black hole --- a black hole whose mass is millions to billions of times the mass of our Sun. AGN emit radiation at all wavelengths. X-rays originating at a distance of a few times the event horizon of the black hole are the emissions closest to the black hole that we can detect; thus, X-rays directly reveal the presence of active supermassive black holes. Oftentimes, however, the supermassive black holes that lie at the centers of AGN are cocooned in gas and dust that absorb the emitted low energy X-rays and the optical and ultraviolet light, hiding the black hole from view at these wavelengths. Until recently, this low-energy absorption presented a major obstacle in observational efforts to map the accretion history of the universe. In 1999 and 2000, the launches of the Chandra and XMM-Newton X-ray Observatories finally broke the impasse. The impact of these observatories on X-ray astronomy is similar to the impact that the Hubble Space Telescope had on optical astronomy. The astounding new data from these observatories have enabled astronomers to make enormous advances in their understanding of when accretion occurs.