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A probable Keplerian disk feeding an optically revealed massive young star. [PDF]
McLeod AF +5 more
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Primordial black holes and their gravitational-wave signatures. [PDF]
Bagui E +20 more
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Delivering Rheumatic Heart Disease Diagnosis at Scale: Performance of an Integrated Public Health Screening Program in Northern Uganda. [PDF]
Wirth SH +18 more
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Ohm's Law, the Reconnection Rate, and Energy Conversion in Collisionless Magnetic Reconnection. [PDF]
Liu YH +14 more
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Comparative safety, efficacy, and predictors of complete occlusion of flow diverter devices in the treatment of unruptured distal anterior cerebral artery aneurysms. [PDF]
Salim HA +90 more
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Resonance, 2018
Jets in active galaxies are signatures of energy supply via collimated beams of plasma from the galactic nucleus to the extended regions of emission. These jets, which occur across the electromagnetic spectrum, are powered by supermassive black holes in the centres of the host galaxies.
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Jets in active galaxies are signatures of energy supply via collimated beams of plasma from the galactic nucleus to the extended regions of emission. These jets, which occur across the electromagnetic spectrum, are powered by supermassive black holes in the centres of the host galaxies.
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Are There Jets in Spiral Galaxies?
1983The absence in spiral galaxies of large-scale collimated jets of radio emission is still little understood. Collimated emission in elliptical galaxies in some cases exceeds by far the optical extent of the galaxy (e.g. in NGC6251). Westerbork observations of NGC4258 (van der Kruit, Oort and Mathewson, 1972) and NGC3079 (de Bruyn, 1977) have provided ...
C. Kotanyi, E. Hummel, J. van Gorkom
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Classification of Optical Jets in Galaxies
1986New, deep images of galaxies reported in various catalogs to have optical jets show that most are not jets, but tidal features, polar rings, or superpositions. From those objects that do seem to represent nuclear ejecta, criteria of brightness relative to the parent galaxy, width, and location have been derived, which should produce much purer samples ...
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