Extragalactic Radio Sources (eBook, PDF)

Redaktion: Heeschen, D. S.; Wade, C. M.

• Format: PDF

Produktbeschreibung

IAU Symposium 97, Extragalactic Radio Sources, was held at Albuquerque, New Mexico August 3-7, 1981. It was co-sponsored by IAU Commissions 28, 40, 47 and 48 and by URSI Commission J. Financial and organizational support were provided by the National Radio Astronomy Observatory, the University of New Mexico, and the National Science Foundation. A wide variety of interesting objects and phenomena can be covered under the heading "Extragalactic Radio Sources", and a diverse set of topics was in fact discussed at the symposium. Radio galaxies, quasars, Seyfert galaxies and BL Lacertids received the most attention, but normal galaxies, the galactic center, and even SS433 were also discussed. While the unifying theme of the symposium was radio emission, studies at all wavelengths--X-ray, UV, optical, IR, and radio--were included. In general, the emphasis was on individual objects and the physical processes associated with them, but there were also papers on statistical studies and cosmology. The symposium was attended by 209 scientists from 18 countries.

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Produktdetails

• Verlag: Springer Netherlands
• Seitenzahl: 507
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9789400977815
• Artikelnr.: 43986129

Inhaltsangabe

Introductory Lecture.- Large Scale Emission from Radio Galaxies.- Evolutionary Tracks of Extended Radio Sources.- Rotating Gas and the Shapes of Radio Sources.- Aperture Synthesis Observations of Cygnus A at 86.2 GHz.- The Spectral Index Distribution of Cygnus A.- Observations of Radio Galaxies and QSR with RATAN-600.- A Possible Evolutionary Feature in the Spectra of Radio Galaxies.- High Resolution VLA Observations of Quasars with Distorted Radio Structure.- The Radio Spectrum Across Three Tailed Radio Galaxies.- VLA and Optical Mapping of the Quasar PKS 0812+020.- What Bends Wide-Angle Tailed Radio Sources?.- Nuclear Ejection-One Side at a Time.- Time Dependent Energy Supply in Radio Sources and Morphology of Radio Lobes.- Multi-Frequency Polarization Studies of Radio Galaxies.- A Complete Sample of Radio Galaxies.- Extended Structure in High-Redshift Radio Sources.- Extended Optical Line Emission Associated with Radio Galaxies.- Extended Emission Lines in Radio Galaxies.- Emission Lines: Sign of a New Energy Source?.- Optical Inverse Compton Emission in Extragalactic Radio Sources.- Proton-Proton Collisions in Extragalactic Radio Sources.- A Preliminary Examination of the Effect of Cluster Gas on Tailed Radio Galaxies.- Radio-Optical Studies of a Complete Sample of Abell Clusters.- Studies of a Complete Sample of Abell Clusters at 1400 MHz.- Two Peculiar Radio Galaxies in A 1367.- Radio Observations at 1.4 GHz of Abell Clusters.- The Radio Emission of Interacting Galaxies.- Stephan's Quintet Revisited.- A Morphological Classification of Clusters of Galaxies from Einstein Images.- Radio and X-Ray Structure of Centaurus a.- Emission Regions in Centaurus A.- X-Ray Emission from Centaurus A.- VLBI Observations of the Nucleus of Centaurus A.- Systematics ofLarge-Scale Radio Jets.- Radio and X-Ray Observations of Large Scale Jets in Quasars.- 4C 18.68: A QSO with Precessing Radio Jets?.- The Quasar Jet 4C 32.69 at 1.4 GHz.- Bent Jets in Radio Quasars.- The Jets in 3C 449 Revisited.- Recent WSRT and VLA Observations of the Jet Radio Galaxy NGC 6251.- NGC 4258: A Bent Jet in a Spiral Galaxy.- Kiloparsec Scale Structure in High Luminosity Radio Sources Observed with MTRLI.- A Suggested Classification and Explanation for Hotspots in Some Powerful Radio Sources.- Hot-Spots in Luminous Extragalactic Radio Sources.- Morphology and Power of Radio Sources.- The Radio Jet of 3C 273.- Relativistic Beaming and Quasar Statistics.- The Radio Core in 3C 236.- The Arcsecond Morphology of Compact Radio Sources.- Highly Polarized Emission from the E-Hotspot in DA240.- Seyfert Galaxies.- Radio Continuum Observations of the Nuclei of Nearby Galaxies.- Radio Emission from the Seyfert Galaxy NGC 5548.- Westerbork Observations of Low Luminosity Radio Sources.- Radio Observations of Markarian 8.- SS433-Observing Evolution in a Precessing, Relativistic Jet.- The Compact Radio Structure of SS433.- SS433: Periodic Changes in the Radio Structure of Scale Sizes 1016 cm.- Radiative Acceleration of Astrophysical Jets: Line-Locking in SS433.- Mechanisms for Jets.- Viscous Dissipation in Jets.- Simple Formula for Radio Jet Surface Brightness.- Instabilities in Pressure Confined Beams and Morphology of Extended Radio Sources.- Connections between Turbulence and Jet Morphology.- Particle Acceleration in Radio Sources with Internal Turbulence.- Jets from Discs and Doughnuts.- Vortex Accretion Funnel / Relativistic Beam Models of Double Radio Sources.- Infrared Observations of Radio Galaxies.- The Nature of the Energy Source in Radio Galaxies and ActiveGalactic Nuclei.- Black Holes and The Origin of Radio Sources.- Supercritical Accretion and Its Possible Relation to Quasars and Radio Sources.- Galactic Centers and Twin-Jets.- X-Ray and Optical Observations of Quasars.- The Milliarcsecond Structure of Radio Galaxies and Quasars.- High Resolution Observations of the Quasar 3C 147.- Structural Evolution in the Nucleus of NGC 1275.- VLBI Observations of M87.- Compact Radio Sources: Their Use and Size.- Spectral Shapes of Compact Extragalactic Radio Sources.- Polarization of the Compact Radio Structure of 3C 454.3.- A Millimetre/Submillimetre Study of Optically Selected Quasars.- Detection of a Broad HI Absorption Feature at 5300 km sec-1 Associated with NGC 1275 (3C 84).- A Search for HI in Elliptical Galaxies with Nuclear Radio Sources.- Changes in the HI Absorption Line Spectrum of AO 0235+164.- Theoretical Models to Explain the Variable 21 cm Absorption Spectrum in AO 0235+164.- Variable Radio Sources.- Interstellar Scintillations as A Tool for Investigations of Hyperfine Structure in Extragalactic Radio Sources.- Radio Flux Flicker of Extragalactic Sources.- Broadband Studies of Compact Sources.- Polarization Variability of Some Compact Radio Sources.- Cm-Wavelength Fluxes and Polarizations of Compact Extra-Galactic X-Ray Sources.- Rotating Structures in Extragalactic Variable Radio Sources.- Depolarization of Extragalactic Radio Sources.- The Optical Polarization of QSOs.- Superluminal Radio Sources.- Superluminal Expansion of 3C 273.- Superluminal Expansion of the Quasar 3C 345.- Superluminal Motion in NRAO 140 and a Possible Future Method for Constraining Ho and qo.- Superluminal Expansion in 3C 179.- Relativistic Jets as Radio and X-Ray Sources.- Compton Rockets: Radiative Acceleration of a Relativistic Fluid.-VLA Observations of the Palomar Bright Quasar Survey.- Optical Spectra of Radio-Loud and Radio-Quiet Active Galactic Nuclei.- Optical Spectra and Radio Properties of Quasars.- Characteristics of Nebulosity Associated with Parkes Quasars.- BL Lac Objects and their Associated Galaxies.- X-Ray Emission from BL Lac Objects: Comparison to the Synchrotron Self-Compton Models.- Evidence for Relativistic Motion in the Millisecond Structure of BL LAC.- Mark III VLBI Observations of the Nucleus of M81 at 2.3 and 8.3 GHz.- Radio Observations of the Galactic Center.- Extragalactic Radio Supernovae in NGC 4321 and NGC 6946.- The Angular Size Distribution of Radio Sources at Low Flux Densities.- The Evolution of Linear Sizes.- Hot-Spots and Radio Lobes of Quasars.- The Optical and Infrared Properties of 3CR Radio Galaxies.- Redshift Estimates for Distant Radio Galaxies Based on Broadband Photometry.- Radio Evolution in High Redshift Clusters.- Colors of Radio Galaxies at High Redshifts.- A Study of Small Angular Size Ooty Sources.- A Comparison of the Structures of 3CR Quasars and Blank Field Radio Sources.- Space Distribution of Quasars Based on Optically Selected Samples.- Cosmological Evolution of Qsos and Radio Galaxies from Radio-Selected Samples.- Gravitational Lenses and Cosmological Evolution.- The Intergalactic Medium.- Modelling the Gravitational Lens of the Double Quasar.- Superluminal Velocities of Compact Radio Sources: A Gravitational Lens Effect.- Symmetry in Radio Galaxies.- A Consequence of the Asymmetry of Jets in Quasars and Active Nuclei of Galaxies.- Other Papers Presented at the Symposium.- Object Index.