Zobrazeno 1 - 10
of 3 821
pro vyhledávání: '"O'neill, S."'
Autor:
Walsh, C. A., Strozzi, D. J., Povilus, A., O'Neill, S. T., Leal, L., Pollock, B., Sio, H., Djordjevic, B. Z., Chittenden, J. P., Moody, J. D.
This paper explores 4 different magnetic field topologies for application to spherical inertial confinement fusion implosions: axial, mirror, cusp and closed field lines. A mirror field is found to enhance the impact of magnetization over an axial fi
Externí odkaz:
http://arxiv.org/abs/2411.10538
Autor:
O'Neill, S. T., Appelbe, B. D., Crilly, A. J., Walsh, C. A., Strozzi, D. J., Moody, J. D., Chittenden, J. P.
Recent experiments at the National Ignition Facility (NIF) have demonstrated ignition for the first time in an inertial confinement fusion (ICF) experiment, a major milestone allowing the possibility of high energy gain through burn propagation. Use
Externí odkaz:
http://arxiv.org/abs/2410.02063
Autor:
de la Parra, P. V., Readhead, A. C. S, Herbig, T., Kiehlmann, S., Lister, M. L., Pavlidou, V., Reeves, R. A., Siemiginowska, A., Sullivan, A. G., Surti, T., Synani, A., Tassis, K., Taylor, G. B., Wilkinson, P. N., Aller, M. F., Blandford, R. D., Globus, N., Lawrence, C. R., Molina, B., O'Neill, S., Pearson, T. J.
This paper addresses, for the first time, a key aspect of the phenomenology of Compact Symmetric Objects (CSOs) -- the characteristics of their radio spectra. We present a radio-spectrum description of a complete sample of high luminosity CSOs (CSO-2
Externí odkaz:
http://arxiv.org/abs/2408.13077
Autor:
de la Parra, P. V., Kiehlmann, S., Mroz, P., Readhead, A. C. S., Synani, A., Begelman, M. C., Blandford, R. D., Ding, Y., Harrison, F., Liodakis, I., Max-Moerbeck, W., Pavlidou, V., Reeves, R., Vallisneri, M., Aller, M. F., Graham, M. J., Hovatta, T., Lawrence, C. R., Lazio, T. J. W., Mahabal, A. A., Molina, B., O'Neill, S., Pearson, T. J., Ravi, V., Tassis, K., Zensus, J. A.
Owens Valley Radio Observatory (OVRO) observations of supermassive black hole binary (SMBHB) candidate PKS~2131$-$021 revealed, for the first time, six likely characteristics of the phenomenology exhibited by SMBHB in blazars, of which the most unexp
Externí odkaz:
http://arxiv.org/abs/2408.02645
Autor:
Kiehlmann, Sebastian, De La Parra, Philipe Vergara, Sullivan, Andrew, Synani, A., Liodakis, Ioannis, Readhead, Anthony, Graham, Matthew, Begelman, Mitchell, Blandford, Roger, Chatziioannou, Katerina, Ding, Yuanze, Harrison, Fiona, Homan, D., Hovatta, Talvikki, Kulkarni, Shrinivas, Lister, Matthew, Maiolino, Roberto, Max-Moerbeck, Walter, Molina, B., Mroz, Przemyslaw, O'Dea, Christopher, Pavlidou, Vasiliki, Pearson, Timothy J., Aller, Margo, Lawrence, C., Lazio, T. Joseph, O'Neill, S., Prince, Thomas, Ravi, Vikram, Reeves, Rodrigo, Tassis, Konstantinos, Vallisneri, Michele, Zensus, J.
Haystack and Owens Valley Radio Observatory (OVRO) observations recently revealed strong sinusoidal total flux density variations that maintained coherence between 1975 and 2021 in the blazar PKS 2131-021 ($z=1.283)$. This was interpreted as possible
Externí odkaz:
http://arxiv.org/abs/2407.09647
Autor:
Fraser, Adam R., Crilly, A. J., Niasse, N. P. L., Chapman, D. A., Pecover, J. D., O'Neill, S. J., Chittenden, J. P.
Global microphysics models are required for the modelling of high-energy-density physics (HEDP) experiments, the improvement of which are critical to the path to inertial fusion energy. This work presents further developments to the atomic and microp
Externí odkaz:
http://arxiv.org/abs/2405.13814
Autor:
Walsh, C. A., Strozzi, D. J., Sio, H., Pollock, B. B., Appelbe, B. D., Crilly, A. J., O'Neill, S., Weber, C., Chittenden, J. P., Moody, J. D.
Resistive diffusion is typically regarded to be negligible in magnetized ICF experiments, with magnetic flux effectively compressed during the implosion. In this work the Richtmyer Meshkov instability at the ice-ablator interface is taken as an examp
Externí odkaz:
http://arxiv.org/abs/2311.01645
Autor:
Crilly, A. J., Schlossberg, D. J., Appelbe, B. D., Moore, A. S., Jeet, J., Kerr, S. M., Rubery, M. S., Lahmann, B., O'Neill, S., Forrest, C. J., Mannion, O. M., Chittenden, J. P.
The hydrodynamics of the dense confining fuel shell is of great importance in defining the behaviour of the burning plasma and burn propagation regimes of inertial confinement fusion experiments. However, it is difficult to probe due to its low emiss
Externí odkaz:
http://arxiv.org/abs/2307.05233
Autor:
Readhead, A. C. S., Ravi, V., Blandford, R. D., Sullivan, A. G., Somalwar, J., Liodakis, I., Lister, M. L., Taylor, G. B., Wilkinson, P. N., Globus, N., Kiehlmann, S., Lawrence, C. R., O'Neill, S., Pavlidou, V., Pearson, T. J., Sheldahl, E., Siemiginowska, A., Tassis, K.
Compact Symmetric Objects (CSOs) form a distinct class of jetted active galactic nuclei (jetted-AGN). We examine a carefully selected sample of 54 CSOs, and confirm that there are two unrelated classes: an edge-dimmed, low-luminosity class (CSO 1), a
Externí odkaz:
http://arxiv.org/abs/2303.11361
Autor:
Kiehlmann, S., Readhead, A. C. S., O'Neill, S., Wilkinson, P. N., Lister, M. L., Liodakis, I., Bruzewski, S., Pearson, T. J., Sheldahl, E., Siemiginowska, A., Tassis, K., Taylor, G. B.
Compact Symmetric Objects (CSOs) are a class of compact, jetted Active Galactic Nuclei (AGN) whose jet axes are not aligned close to the line of sight, and whose observed emission is not predominantly relativistically boosted towards us. Using comple
Externí odkaz:
http://arxiv.org/abs/2303.11359