Zobrazeno 1 - 10
of 5 691
pro vyhledávání: '"SUPERLUMINAL MOTION"'
Publikováno v:
Galaxies, Vol. 12, No. 1, id. 8 (2024)
Narrow-line Seyfert 1 (NLS1) galaxies are a peculiar subclass of active galactic nuclei (AGN). Among them, TXS 1206+549 belongs to a small group of radio-loud and gamma-ray-emitting NLS1 galaxies. We focus on the radio properties of this galaxy by an
Externí odkaz:
http://arxiv.org/abs/2402.10715
Publikováno v:
Nature volume 610, pages 273-276 (2022)
The afterglow of the binary neutron star merger GW170817 gave evidence for a structured relativistic jet and a link between such mergers and short gamma-ray bursts. Superluminal motion, found using radio very long baseline interferometry (VLBI), toge
Externí odkaz:
http://arxiv.org/abs/2210.06568
Publikováno v:
Phys. Rev. X 11, 011005 (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 3-dimensional xyt-space has been reported based on various types
Externí odkaz:
http://arxiv.org/abs/2007.09308
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Snios, Bradford, Nulsen, Paul E. J., Kraft, Ralph P., Cheung, C. C., Meyer, Eileen T., Forman, William R., Jones, Christine, Murray, Stephen S.
Chandra HRC observations are investigated for evidence of proper motion and brightness changes in the X-ray jet of the nearby radio galaxy M87. Using images spanning 5 yr, proper motion is measured in the X-ray knot HST-1, with a superluminal apparen
Externí odkaz:
http://arxiv.org/abs/1905.04330
A Transformation Factor for Superluminal Motion That Preserves Symmetrically the Spacetime Intervals
Autor:
Diego Roldán, Francisco Roldán-Aráuz
Publikováno v:
Symmetry, Vol 15, Iss 6, p 1177 (2023)
While superluminal phenomena are not empirically substantiated, they present an intriguing hypothetical case. For this speculative framework, the Lorentz transformations would necessitate a revision: instead of the standard γ(x−vt), the absolute v
Externí odkaz:
https://doaj.org/article/c9228e5a82fb4ebabf6ee5daefa62653
Autor:
Hakkila, Jon, Nemiroff, Robert
We introduce a simple model to explain the time-reversed and stretched residuals in gamma-ray burst (GRB) pulse light curves. In this model an impactor wave in an expanding GRB jet accelerates from subluminal to superluminal velocities, or decelerate
Externí odkaz:
http://arxiv.org/abs/1908.07306
Autor:
Dado, Shlomo, Dar, Arnon
The direction of the axis of the orbital motion of the merging binary neutron stars in the GW170817 event coincided with that of the apparent superluminal jet, which produced the short hard gamma ray burst (SHB) 170817A, if the local value of the Hub
Externí odkaz:
http://arxiv.org/abs/1808.08912
Autor:
Mooley, K. P., Deller, A. T., Gottlieb, O., Nakar, E., Hallinan, G., Bourke, S., Frail, D. A., Horesh, A., Corsi, A., Hotokezaka, K.
Publikováno v:
Nature, volume 561, pages 355-359 (2018)
The binary neutron star merger GW170817 was accompanied by radiation across the electromagnetic spectrum and localized to the galaxy NGC 4993 at a distance of 41+/-3 Mpc. The radio and X-ray afterglows of GW170817 exhibited delayed onset, a gradual r
Externí odkaz:
http://arxiv.org/abs/1806.09693