Results 1 to 10 of about 9,867 (188)
The Linear Accelerating Superluminal Motion Model [PDF]
The Astrophysical Journal, 2004 12 Pages, 3 Figues, 1 Table, Accepted for Publication by ApJ ...
Jianfeng Zhou +4 more
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Superluminal Motion-Assisted Four-Dimensional Light-in-Flight Imaging [PDF]
Physical Review X, 2021 Advances in high-speed imaging techniques have opened new possibilities for capturing ultrafast phenomena such as light propagation in air or through media. Capturing light in flight in three-dimensional xyt space has been reported based on various types
Kazuhiro Morimoto +3 more
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Superluminal motion in the quasar 3C 279 [PDF]
Symposium - International Astronomical Union, 1986 We present the results of a program of monitoring structure changes in the radio core of the quasar 3C 279 (z = 0.538) using VLBI. In all, nine hybrid maps have been made from observations at frequencies of 5, 11, and 22 GHz, during the period 1981–1985. The VLBI structure shows many similarities with other ‘superluminal’ radio sources, e.g.
S. C. Unwin
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Superluminal Proper Motion in the X-Ray Jet of Centaurus A
The Astrophysical JournalThe structure of the jet in Cen A is likely better revealed in X-rays than in the radio band, which is usually used to investigate jet proper motions. In this paper, we analyze Chandra Advanced CCD Imaging Spectrometer observations of Cen A from 2000 to ...
David Bogensberger +6 more
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4C39.25 – Superluminal Motion Between Stationary Components [PDF]
Symposium - International Astronomical Union, 1988 During the 1970's, the compact radio structure of 4C39.25 consisted of a simple double source, whose separation did not change. A new component, which probably originated in mid-1979, is now seen to be moving superluminally between the original, still stationary, components.
D. B. Shaffer, Alan P. Marscher
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Space-time wave packets in multimode optical fibers with controlled dynamic motions and tunable group velocities [PDF]
Nature CommunicationsSpace-time wave packets (STWPs) with correlated spatial and frequency degrees of freedom exhibit time-dependent spatial interference, thereby giving rise to interesting dynamic evolution behaviors.
Xinzhou Su +14 more
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Space-time optical diffraction from synthetic motion [PDF]
Nature CommunicationsThe interaction of light with objects and media moving at relativistic and superluminal speeds enables unconventional phenomena such as Fresnel drag, Hawking radiation, and light amplification.
A. C. Harwood +9 more
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Superluminal Motion in CTA 102 [PDF]
Symposium - International Astronomical Union, 1989 Sholomitskii (1965) discovered that the flux density of the quasar CTA 102 varies at low frequencies on a timescale of a few months. Low-frequency variability can be explained by “superluminal flux variation” (Romney et al. 1984): If the intrinsic brightness of a component moving in a relativistically beamed source varies by only a few percent, the ...
A. E. Wehrle
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Superluminal Motion in the Largest Known Quasar [PDF]
Symposium - International Astronomical Union, 1988 We discuss VLBI observations of the bright core in the large, triple radio source 4C 34.37, associated with a quasar at z = 0.206. We have discovered superluminal motion in this quasar, which is the largest quasar known. We comment on the implications of these findings, and subsequently examine the projected size distributions of lobe and core ...
P. D. Barthel +4 more
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Superluminal Motion and Jet Parameters in the High-Redshift Blazar J1429+5406 [PDF]
UniverseWe investigate the relativistic jet of the powerful radio-emitting blazar J1429+5406 at redshift z=3.015. Our understanding of jet kinematics in z≥3 quasars is still rather limited, based on a sample of less than about 50 objects.
Dávid Koller, Sándor Frey
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