Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Hardee, P. E."'
The central radio source in M87 provides the best opportunity to study jet formation because it has a large angular size for the gravitational radius of the black hole and has a bright jet that is well resolved by VLBI observations. We present intens
Externí odkaz:
http://arxiv.org/abs/1802.06166
Autor:
Nishikawa, Ken-Ichi, Mizuno, Yosuke, Gomez, Jose L., Dutan, Ioana, Meli, Athina, White, Charley, Niemiec, Jacek, Kobzar, Oleh, Pohl, Martin, Pe'er, Asaf, Frederiksen, Jacob Trier, Nordlund, AAke, Sol, Helene, Hardee, Philip E., Hartmann, Dieter H.
Publikováno v:
Galaxies, 5, 58, 2017
In this study we investigate jet interaction at a microscopic level in a cosmological environment, which responds to a key open question in the study of relativistic jets. Using small simulation systems during prior research, we initially studied the
Externí odkaz:
http://arxiv.org/abs/1708.07740
Autor:
Duţan, Ioana, Nishikawa, Ken-Ichi, Mizuno, Yosuke, Niemiec, Jacek, Kobzar, Oleh, Pohl, Martin, Gómez, Jose L., Pe'er, Asaf, Frederiksen, Jacob T., Nordlund, Åke, Meli, Athina, Sol, Helene, Hardee, Philip E., Hartmann, Dieter H.
We study the interaction of relativistic jets with their environment, using 3-dimensional relativistic particle-in-cell simulations for two cases of jet composition: (i) electron-proton ($e^{-}-p^{+}$) and (ii) electron-positron ($e^{\pm}$) plasmas c
Externí odkaz:
http://arxiv.org/abs/1611.02882
Autor:
Walker, R. Craig, Hardee, Philip E., Davies, Fred, Ly, Chun, Junor, William, Mertens, Florent, Lobanov, Andrei
Publikováno v:
Galaxies 2016, 4(4), 46
M87 is the best source in which to study a jet at high resolution in gravitational units because it has a very high mass black hole and is nearby. The angular size of the black hole is second only to Sgr A*, which does not have a strong jet. The jet
Externí odkaz:
http://arxiv.org/abs/1610.08600
Autor:
Nishikawa, Ken-Ichi, Mizuno, Yosuke, Niemiec, Jacek, Kobzar, Oleh, Pohl, Martin, Gomez, Jose L., Dutan, Ioana, Pe'er, Asaf, Frederiksen, Jacob Trier, Nordlund, AAke, Meli, Athina, Sol, Helene, Hardee, Philip E., Hartmann, Dieter. H.
Publikováno v:
Galaxies 2016, 4, 38
In the study of relativistic jets one of the key open questions is their interaction with the environment on the microscopic level. Here, we study the initial evolution of both electron$-$proton ($e^{-}-p^{+}$) and electron$-$positron ($e^{\pm}$) rel
Externí odkaz:
http://arxiv.org/abs/1609.09363
Publikováno v:
A&A 595, A54 (2016)
Very long baseline interferometry (VLBI) imaging of radio emission from extragalactic jets provides a unique probe of physical mechanisms governing the launching, acceleration, and collimation of relativistic outflows. The two-dimensional structure a
Externí odkaz:
http://arxiv.org/abs/1608.05063
Autor:
Nishikawa, K. I, Frederiksen, J. T., Nordlund, A., Mizuno, Y., Hardee, P. E., Niemiec, J., Gomez, J. L., Pe'er, A., Dutan, I., Meli, A., Sol, H., Pohl, M., Hartman, D. H.
Publikováno v:
ApJ, 820, 94, 2016
One of the key open questions in the study of relativistic jets is their interaction with the environment. Here, we study the initial evolution of both electron-proton and electron-positron relativistic jets, focusing on their lateral interaction wit
Externí odkaz:
http://arxiv.org/abs/1511.03581
Autor:
Mizuno, Yosuke, Gomez, Jose L., Nishikawa, Ken-Ichi, Meli, Athina, Hardee, Philip E., Rezzolla, Luciano
Publikováno v:
ApJ 809, 38 (2015)
We have performed two-dimensional special-relativistic magnetohydrodynamic simulations of non-equilibrium over-pressured relativistic jets in cylindrical geometry. Multiple stationary recollimation shock and rarefaction structures are produced along
Externí odkaz:
http://arxiv.org/abs/1505.00933
Autor:
Nishikawa, K. -I., Hardee, P. E., Dutan, I., Niemiec, J., Medvedev, M., Mizuno, Y., Meli, A., Sol, H., Zhang, B., Pohl, M., Hartmann, D. H.
Publikováno v:
Astrophysical J., 793, 69, 2014
We have investigated magnetic field generation in velocity shears via the kinetic Kelvin-Helmholtz instability (kKHI) using a relativistic plasma jet core and stationary plasma sheath. Our three-dimensional particle-in-cell simulations consider plasm
Externí odkaz:
http://arxiv.org/abs/1405.5247
Jets in low-luminosity radio galaxies are known to decelerate from relativistic speeds on parsec scales to mildly or sub-relativistic speeds on kiloparsec scales. Several mechanisms have been proposed to explain this effect, including strong reconfin
Externí odkaz:
http://arxiv.org/abs/1404.1209