Compact Radio Sources And Jet Driven Agn Feedback In The Early Universe

Download Compact Radio Sources And Jet Driven Agn Feedback In The Early Universe full books in PDF, epub, and Kindle. Read online Compact Radio Sources And Jet Driven Agn Feedback In The Early Universe ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Compact Radio Sources and Jet-driven AGN Feedback in the Early Universe

Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (893 download)

DOWNLOAD NOW!

Book Synopsis Compact Radio Sources and Jet-driven AGN Feedback in the Early Universe by :

Download or read book Compact Radio Sources and Jet-driven AGN Feedback in the Early Universe written by and published by . This book was released on 2007 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: To investigate the impact of radio jets during the formation epoch of their massive host galaxies, we present an analysis of two massive, log M{sub stellar}/M{sub {circle_dot}} ≈ 10.6 and 11.3, compact radio galaxies at z = 3.5, TNJ0205+2242 and TNJ0121+1320. Their small radio sizes (R ≤ 10 kpc) are most likely a sign of youth. In particular, we compare their radio properties and gas dynamics with those in well extended radio galaxies at high redshift, which show strong evidence for powerful, jet-driven outflows of significant gas masses (M ≈ 109−1° M{sub {circle_dot}}). Our analysis combines rest-frame optical integral-field spectroscopy obtained with SINFONI on the VLT with existing radio imaging, CO(4-3) emission line spectra, and rest-frame UV longslit spectroscopy. [OIII][lambda]5007 line emission is compact in both galaxies and lies within the region defined by the radio lobes. For TNJ0205+2242, the Ly[alpha] profile narrows significantly outside the jet radius, indicating the presence of a quiescent halo. TNJ0121+1320 has two components at a projected relative distance of ≈10 kpc and a velocity offset of ≈300 km s−1, measured from the [OIII][lambda]5007 velocity map. This suggests that the fainter component is orbiting around the more massive, radio-loud galaxy. If motions are gravitational, this implies a dynamical mass of 2 x 1011 M{sub {circle_dot}} for the radio-loud component. The dynamical mass, molecular gas mass measured from the CO line emission, and radio luminosity of these two compact radio galaxies imply that compact radio sources may well develop large-scale, energetic outflows as observed in extended radio galaxies, with the potential of removing significant fractions of the ISM from the host galaxy. The absence of luminous emission line gas extending beyond the radio emission in these sources agrees with the observed timescales and outflow rates in extended radio galaxies, and adds further evidence that the energetic, large-scale outflows observed in extended radio sources (Nesvadba et al. 2006) are indeed the result of influence of the radio jet.

NgVLA

Author : Eric James Murphy
Publisher :
ISBN 13 : 9781583819197
Total Pages : 830 pages
Book Rating : 4.8/5 (191 download)

DOWNLOAD NOW!

Book Synopsis NgVLA by : Eric James Murphy

Download or read book NgVLA written by Eric James Murphy and published by . This book was released on 2018 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Jets in Extragalactic Radio Sources

Author : Hermann-Josef Röser
Publisher : Springer
ISBN 13 : 9783662139493
Total Pages : 304 pages
Book Rating : 4.1/5 (394 download)

DOWNLOAD NOW!

Book Synopsis Jets in Extragalactic Radio Sources by : Hermann-Josef Röser

Download or read book Jets in Extragalactic Radio Sources written by Hermann-Josef Röser and published by Springer. This book was released on 2014-03-12 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The existence of jets emanating from the central sources of radio galaxies and quasars was perhaps the most important discovery for our understanding of the nature of active galactic nuclei. These proceedings present reviews and research papers on extragalactic radio sources. The book begins witha discussion of the phenomenology and models of radio sources. The main partis devoted to detailed studies of jets by VLBI, to the information obtained about the structure of the central source as deduced from variability studies, to production, confinement and velocity of jets as well as to numerical simulations of the jet phenomenon. Reviews of the two best studied jets - those in the radio galaxy M87 and the quasar 3C273 - illustrate our current observational picture of extragalactic radio jets in all accessible wavelength ranges. A section on the influence of the environment on radio galaxies concludes the book. This topical volume addresses researchers and graduate students in astrophysics.

The Formation and Disruption of Black Hole Jets

Author : Ioannis Contopoulos
Publisher : Springer
ISBN 13 : 3319103563
Total Pages : 273 pages
Book Rating : 4.3/5 (191 download)

DOWNLOAD NOW!

Book Synopsis The Formation and Disruption of Black Hole Jets by : Ioannis Contopoulos

Download or read book The Formation and Disruption of Black Hole Jets written by Ioannis Contopoulos and published by Springer. This book was released on 2014-11-10 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the phenomenology displayed by relativistic jets as well as the most recent theoretical efforts to understand the physical mechanisms at their origin. Relativistic jets have been observed and studied in Active Galactic Nuclei (AGN) for about half a century and are believed to be fueled by accretion onto a supermassive black hole at the center of the host galaxy. Since the first discovery of relativistic jets associated with so-called "micro-quasars" much more recently, it has seemed clear that much of the physics governing the relativistic outflows in stellar X-ray binaries harboring black holes and in AGN must be common, but acting on very different spatial and temporal scales. With new observational and theoretical results piling up every day, this book attempts to synthesize a consistent, unified physical picture of the formation and disruption of jets in accreting black-hole systems. The chapters in this book offer overviews accessible not only to specialists but also to graduate students and astrophysicists working in other areas. Covered topics comprise Relativistic jets in stellar systems Launching of AGN jets Parsec-scale AGN jets Kiloparsec-scale AGN jets Black hole magnetospheres Theory of relativistic jets The structure and dynamics of the inner accretion disk The origin of the jet magnetic field X-ray observations, phenomenology, and connection with theory

Jets in Extragalactic Radio Sources

Author : Hermann-Josef Röser
Publisher :
ISBN 13 : 9783540571643
Total Pages : 301 pages
Book Rating : 4.5/5 (716 download)

DOWNLOAD NOW!

Book Synopsis Jets in Extragalactic Radio Sources by : Hermann-Josef Röser

Download or read book Jets in Extragalactic Radio Sources written by Hermann-Josef Röser and published by . This book was released on 1993-01-01 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The existence of jets emanating from the central sources of radio galaxies and quasars was perhaps the most important discovery for our understanding of the nature of active galactic nuclei. These proceedings present reviews and research papers on extragalactic radio sources. The book begins witha discussion of the phenomenology and models of radio sources. The main partis devoted to detailed studies of jets by VLBI, to the information obtained about the structure of the central source as deduced from variability studies, to production, confinement and velocity of jets as well as to numerical simulations of the jet phenomenon. Reviews of the two best studied jets - those in the radio galaxy M87 and the quasar 3C273 - illustrate our current observational picture of extragalactic radio jets in all accessible wavelength ranges. A section on the influence of the environment on radio galaxies concludes the book. This topical volume addresses researchers and graduate students in astrophysics.

Information Handling in Astronomy - Historical Vistas

Author : Andre Heck
Publisher : Springer Science & Business Media
ISBN 13 : 0306480808
Total Pages : 300 pages
Book Rating : 4.3/5 (64 download)

DOWNLOAD NOW!

Book Synopsis Information Handling in Astronomy - Historical Vistas by : Andre Heck

Download or read book Information Handling in Astronomy - Historical Vistas written by Andre Heck and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a unique review of how astronomical information handling (in the broad sense) evolved in the course of the 20th century, and especially during its second half. It will be very useful for researchers, teachers, editors, publishers, librarians, computer scientists, sociologists of science, research planners and strategists, project managers, public-relations officers, plus those in charge of astronomy-related organizations, as well as by students aiming at a career in astronomy or related space science.

The Physics and Evolution of Active Galactic Nuclei

Author : Hagai Netzer
Publisher : Cambridge University Press
ISBN 13 : 1107021510
Total Pages : 369 pages
Book Rating : 4.1/5 (7 download)

DOWNLOAD NOW!

Book Synopsis The Physics and Evolution of Active Galactic Nuclei by : Hagai Netzer

Download or read book The Physics and Evolution of Active Galactic Nuclei written by Hagai Netzer and published by Cambridge University Press. This book was released on 2013-09-16 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive introduction to the theory underpinning our study of active galactic nuclei and the ways we observe them.

Jets from Stars and Galactic Nuclei

Author : Wolfgang Kundt
Publisher : Springer
ISBN 13 :
Total Pages : 312 pages
Book Rating : 4.:/5 (43 download)

DOWNLOAD NOW!

Book Synopsis Jets from Stars and Galactic Nuclei by : Wolfgang Kundt

Download or read book Jets from Stars and Galactic Nuclei written by Wolfgang Kundt and published by Springer. This book was released on 1996-05-15 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jets are ubiquitous in the Universe, but ill-understood. Conservative books base their interpretations on focused stellar winds, ejected "bullets", black-hole central engines, and in-situ upgrading of electron energies via shocks. This volume, however, attempts a uniform interpretation of the bipolar-flow family, involving extremely relativistic pair plasma as the jet substance, and rotating magnets (possibly burning disks) as the central engines. Among the discussed sources are SS 433, YSO jets, planetary nebulae, our galactic center, and the class of extragalactic QSOs, both radio-loud and radio-quiet.

Testing the AGN Paradigm

Author : Stephen S. Holt
Publisher : American Institute of Physics
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Testing the AGN Paradigm by : Stephen S. Holt

Download or read book Testing the AGN Paradigm written by Stephen S. Holt and published by American Institute of Physics. This book was released on 1992 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Report

Author : European Southern Observatory
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Report by : European Southern Observatory

Download or read book Report written by European Southern Observatory and published by . This book was released on 2007 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Study Week on Nuclei of Galaxies, April 13-18, 1970

Author : D. J. K. O'Connell
Publisher :
ISBN 13 :
Total Pages : 836 pages
Book Rating : 4.:/5 (45 download)

DOWNLOAD NOW!

Book Synopsis Study Week on Nuclei of Galaxies, April 13-18, 1970 by : D. J. K. O'Connell

Download or read book Study Week on Nuclei of Galaxies, April 13-18, 1970 written by D. J. K. O'Connell and published by . This book was released on 1971 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

AGN Feedback And Evolution of Radio Sources

Author : D. Burke
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (316 download)

DOWNLOAD NOW!

Book Synopsis AGN Feedback And Evolution of Radio Sources by : D. Burke

Download or read book AGN Feedback And Evolution of Radio Sources written by D. Burke and published by . This book was released on 2006 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the first significant detection of an X-ray cluster associated with a powerful (L{sub bol} {approx} 10{sup 47} erg sec{sup -1}) radio-loud quasar at high redshift (z=1.06). Diffuse X-ray emission is detected out to {approx} 120 kpc from the CSS quasar 3C 186. A strong Fe-line emission at the z{sub rest} = 1.06 confirms its thermal nature. We find that the CSS radio source is highly overpressured with respect to the thermal cluster medium by 2-3 orders of magnitude. This provides direct observational evidence that the radio source is not thermally confined as posited in the ''frustrated'' scenario for CSS sources. Instead, the radio source may be young and at an early stage of its evolution. This source provides the first detection of the AGN in outburst in the center of a cooling flow cluster. Powerful radio sources are thought to be triggered by the cooling flows. The evidence for the AGN activity and intermittent outbursts comes from the X-ray morphology of low redshift clusters, which usually do not harbour quasars. 3C186 is a young active radio source which can supply the energy into the cluster and potentially prevent its cooling. We discuss energetics related to the quasar activity and the cluster cooling flow, and possible feedback between the evolving radio source and the cluster.

The Most Interesting Galaxies in the Universe

Author : Joel L Schiff
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1643270044
Total Pages : 164 pages
Book Rating : 4.6/5 (432 download)

DOWNLOAD NOW!

Book Synopsis The Most Interesting Galaxies in the Universe by : Joel L Schiff

Download or read book The Most Interesting Galaxies in the Universe written by Joel L Schiff and published by Morgan & Claypool Publishers. This book was released on 2018-09-13 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prior to the 1920s it was generally thought, with a few exceptions, that our galaxy, the Milky Way, was the entire Universe. Based on the work of Henrietta Leavitt with Cepheid variables, astronomer Edwin Hubble was able to determine that the Andromeda Galaxy and others had to lie outside our own. Moreover, based on the work of Vesto Slipher, involving the redshifts of these galaxies, Hubble was able to determine that the Universe was not static, as had been previously thought, but expanding. The number of galaxies has also been expanding, with estimates varying from 100 billion to 2 trillion. While every galaxy in the Universe is interesting just by its very fact of being, the author has selected 51 of those that possess some unusual qualities that make them of some particular interest. These galaxies have complex evolutionary histories, with some having supermassive black holes at their core, others are powerful radio sources, a very few are relatively nearby and even visible to the naked eye, whereas the light from one recent discovery has been travelling for the past 13.4 billion years to show us its infancy, and from a time when the Universe was in its infancy. And in spite of the vastness of the Universe, some galaxies are colliding with others, embraced in a graceful gravitational dance. Indeed, as the Andromeda Galaxy is heading towards us, a similar fate awaits our Milky Way. When looking at a modern image of a galaxy, one is in awe at the shear wondrous nature of such a magnificent creation, with its boundless secrets that it is keeping from us, its endless possibilities for harboring alien civilizations, and we remain left with the ultimate knowledge that we are connected to its glory.

An Introduction to Active Galactic Nuclei

Author : Bradley M. Peterson
Publisher : Cambridge University Press
ISBN 13 : 9780521479110
Total Pages : 258 pages
Book Rating : 4.4/5 (791 download)

DOWNLOAD NOW!

Book Synopsis An Introduction to Active Galactic Nuclei by : Bradley M. Peterson

Download or read book An Introduction to Active Galactic Nuclei written by Bradley M. Peterson and published by Cambridge University Press. This book was released on 1997-02-13 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can we test if a supermassive black hole lies at the heart of every active galactic nucleus? What are LINERS, BL Lacs, N galaxies, broad-line radio galaxies and radio-quiet quasars and how do they compare? This timely textbook answers these questions in a clear, comprehensive and self-contained introduction to active galactic nuclei - for graduate students in astronomy and physics. The study of AGN is one of the most dynamic areas of contemporary astronomy, involving one fifth of all research astronomers. This textbook provides a systematic review of the observed properties of AGN across the entire electromagnetic spectrum, examines the underlying physics, and shows how the brightest AGN, quasars, can be used to probe the farthest reaches of the Universe. This book serves as both an entry point to the research literature and as a valuable reference for researchers in the field.

Astronomical Data Analysis Software and Systems XIV

Author : Patrick L. Shopbell
Publisher :
ISBN 13 :
Total Pages : 776 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!

Book Synopsis Astronomical Data Analysis Software and Systems XIV by : Patrick L. Shopbell

Download or read book Astronomical Data Analysis Software and Systems XIV written by Patrick L. Shopbell and published by . This book was released on 2005 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

On the Interaction of Jets with the Dense Medium of the Early Universe

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (671 download)

DOWNLOAD NOW!

Book Synopsis On the Interaction of Jets with the Dense Medium of the Early Universe by :

Download or read book On the Interaction of Jets with the Dense Medium of the Early Universe written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, radio galaxies have been found at redshifts above five. They differ in higher radio power and emission line characteristics from sources nearby. To understand these centers of proto-galaxy-clusters, hydrodynamic jets with cooling were simulated. After validation of the 3D code NIRVANA by comparison with literature simulations, an adiabatic 2D parameter study in the relevant regime (density contrast jet/medium eta=10^{-2}-10^{-5} was performed. Characteristic cocoon shape and broadenings were found. The radial expansion can be analytically approximated by a spherical blast wave with constant energy injection. In a non-equilibrium simulation the bow shock cooled to 10^4 K during jet propagation time (external density 1 ccm. After global cooling and compression, the bow shock turned into a big absorber which fragmented, and should form stars in typically 10^4 globular clusters of 10^6 solar masses. Filamentation and fragmentation was confirmed at high resolution. Absorbers in far-off radio galaxies and globular cluster excesses in nearby CD galaxies can be explained that way. With literature parameters fo Cygnus~A, a 3D simulation, for the first time with counter-jet, was performed. The bow shock shows two clearly separated phases, also evident in observation. Basic jet parameters have been derived. The simulation shows characteristic X-ray features (rings) which were identified and interpreted in two sources (M87).

Active Galactic Nuclei

Author : Volker Beckmann
Publisher : John Wiley & Sons
ISBN 13 : 3527410783
Total Pages : 390 pages
Book Rating : 4.5/5 (274 download)

DOWNLOAD NOW!

Book Synopsis Active Galactic Nuclei by : Volker Beckmann

Download or read book Active Galactic Nuclei written by Volker Beckmann and published by John Wiley & Sons. This book was released on 2012-09-24 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Active Galactic Nuclei This AGN textbook gives an overview on the current knowledge of the Active Galacitc Nuclei phenomenon. The spectral energy distribution will be discussed, pointing out what can be observed in different wavebands. The different physical models are presented together with formula important for the understanding of AGN physics. Furthermore, the authors discuss the AGN with respect to its environment, host galaxy, feedback in galaxies and in clusters of galaxies, variability, etc. and finally the cosmological evolution of the AGN phenomenon. This book includes phenomena based on new results in the X-Ray and gamma-ray domain from new telescopes such as Chandra, XMM-Newton, the Fermi Gamma-Ray Space Telescope, and the VHE regime not mentioned so far in AGN books. Those and other new developments as well as simulations of AGN merging events and formations, enabled through latest super-computing capabilities. From the contents: The observational picture of AGN Radiative processes The central engine AGN types and unification AGN through the electromagnetic spectrum AGN variability Environment Quasars and cosmology Formation, evolution and the ultimate fate of AGN What we do not know (yet)