Results 71 to 80 of about 1,904 (106)
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2014
So far, we have discussed the radio continuum (specifically: the synchrotron) emission of normal, i.e. star-forming galaxies, along with their magnetic field. As pointed out in Sect. 5.5, their synchrotron luminosity is closely associated with the star formation in their disks, this giving rise to the well-known radio-FIR correlation established for ...
Ulrich Klein, Andrew Fletcher
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So far, we have discussed the radio continuum (specifically: the synchrotron) emission of normal, i.e. star-forming galaxies, along with their magnetic field. As pointed out in Sect. 5.5, their synchrotron luminosity is closely associated with the star formation in their disks, this giving rise to the well-known radio-FIR correlation established for ...
Ulrich Klein, Andrew Fletcher
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Physics Bulletin, 1980
C Hazard and S Mitton (eds) 1979 Cambridge: Cambridge University Press vii + 317 pp price £15 This book provides an extensive review of mainstream theoretical work on quasars and the nuclei of active galaxies. It is based on invited presentations to the Nato Cambridge conference of summer 1977.
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C Hazard and S Mitton (eds) 1979 Cambridge: Cambridge University Press vii + 317 pp price £15 This book provides an extensive review of mainstream theoretical work on quasars and the nuclei of active galaxies. It is based on invited presentations to the Nato Cambridge conference of summer 1977.
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1987
Well before the discovery of quasars, a special class of galaxies was known to harbor unusually powerful nuclei (Seyfert, 1943). Two primary defining characteristics of these active galactic nuclei (AGNs) are an intense point-like nuclear continuum source and strong, broad emission lines, neither of which could arise from ordinary stellar processes ...
Matthew A. Malkan +2 more
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Well before the discovery of quasars, a special class of galaxies was known to harbor unusually powerful nuclei (Seyfert, 1943). Two primary defining characteristics of these active galactic nuclei (AGNs) are an intense point-like nuclear continuum source and strong, broad emission lines, neither of which could arise from ordinary stellar processes ...
Matthew A. Malkan +2 more
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1990
The Swiss Society for Astrophysics and Astronomy organizes each year in the late winter or early spring an advanced course. The format of the school is always iden tical: three leading lecturers are invited to cover the subject in nine or ten lectures each and to deliver a written version of their lecture notes.
Blandford, R. D. +2 more
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The Swiss Society for Astrophysics and Astronomy organizes each year in the late winter or early spring an advanced course. The format of the school is always iden tical: three leading lecturers are invited to cover the subject in nine or ten lectures each and to deliver a written version of their lecture notes.
Blandford, R. D. +2 more
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2012
This AGN textbook gives an overview on the current knowledge of the Active Galactic 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.
Beckmann, Volker, Shrader, Chris R.
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This AGN textbook gives an overview on the current knowledge of the Active Galactic 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.
Beckmann, Volker, Shrader, Chris R.
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2008
These lectures review briefly the spectra and classification of active galactic nuclei (AGN), including quasi-stellar objects (QSOs), and the properties of their ‘host’ galaxies; starbursts (SB) and the possible association between galaxy interactions, SB, and AGN.
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These lectures review briefly the spectra and classification of active galactic nuclei (AGN), including quasi-stellar objects (QSOs), and the properties of their ‘host’ galaxies; starbursts (SB) and the possible association between galaxy interactions, SB, and AGN.
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Astrophysics and Space Science, 1995
The term Active Galactic Nuclei includes QSOs (Quasi-Stellar Objects), Seyfert galaxies, BL Lac objects and nuclei showing unusual amounts of star formation. South African work has centred on the photometric properties of these objects, both in the optical(UBVRI) and the infrared(JHKL). Photometry has been used to investigate the nature of the relevant
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The term Active Galactic Nuclei includes QSOs (Quasi-Stellar Objects), Seyfert galaxies, BL Lac objects and nuclei showing unusual amounts of star formation. South African work has centred on the photometric properties of these objects, both in the optical(UBVRI) and the infrared(JHKL). Photometry has been used to investigate the nature of the relevant
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The Hadronic Model of Active Galactic Nuclei
Space Science Reviews, 1996We review the hadronic model for Active Galactic Nuclei (AGN). This model, which can be applied to all AGN, advocates the acceleration of protons to ultrarelativistic energies by shock fronts which are formed a few Schwarzschild radii away from the central black hole. The necessary consequences of this hypothesis are discussed.
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Ultrahigh-energy photons up to 1.4 petaelectronvolts from 12 γ-ray Galactic sources
Nature, 2021Zhen Cao, Felix Aharonian, Yiwei Bao
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All-sky dynamical response of the Galactic halo to the Large Magellanic Cloud
Nature, 2021Charlie Conroy +2 more
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