Zobrazeno 1 - 10
of 27 989
pro vyhledávání: '"A. Blackman"'
Backward stimulated Raman scattering is a three-wave coupling instability requiring the matching of an incoming pump light wave to a scattered light wave and electron plasma wave. It can be harmful to laser-driven inertial confinement fusion because
Externí odkaz:
http://arxiv.org/abs/2407.16332
We propose that certain white dwarf (WD) planets, such as WD 1856+534 b, may form out of material from a stellar companion that tidally disrupts from common envelope (CE) evolution with the WD progenitor star. The disrupted companion shreds into an a
Externí odkaz:
http://arxiv.org/abs/2407.14190
In this paper, we propose an algorithm for non-myopic sensor management for Bernoulli filtering, i.e., when there may be at most one target present in the scene. The algorithm is based on selecting the action that solves a Bellman-type minimisation p
Externí odkaz:
http://arxiv.org/abs/2405.05815
Autor:
Valenzuela-Villaseca, V., Suttle, L. G., Suzuki-Vidal, F., Halliday, J. W. D., Russell, D. R., Merlini, S., Tubman, E. R., Hare, J. D., Chittenden, J. P., Koepke, M. E., Blackman, E. G., Lebedev, S. V.
We present a detailed characterization of the structure and evolution of differentially rotating plasmas driven on the MAGPIE pulsed-power generator (1.4 MA peak current, 240 ns rise-time). The experiments were designed to simulate physics relevant t
Externí odkaz:
http://arxiv.org/abs/2403.20321
Autor:
Terry, Sean K., Beaulieu, Jean-Philippe, Bennett, David P., Hamdorf, Euan, Bhattacharya, Aparna, Chaudhry, Viveka, Cole, Andrew A., Koshimoto, Naoki, Anderson, Jay, Bachelet, Etienne, Blackman, Joshua W., Bond, Ian A., Lu, Jessica R., Marquette, Jean Baptiste, Ranc, Clement, Rektsini, Natalia E., Sahu, Kailash, Vandorou, Aikaterini
We present an analysis of high angular resolution images of the microlensing target MOA-2007-BLG-192 using Keck adaptive optics and the Hubble Space Telescope. The planetary host star is robustly detected as it separates from the background source st
Externí odkaz:
http://arxiv.org/abs/2403.12118
Autor:
Blackman, Matthew
Publikováno v:
History Today. Jul2024, Vol. 74 Issue 7, p64-77. 14p.
Autor:
Rektsini, Natalia E., Batista, Virginie, Ranc, Clement, Bennett, David P., Beaulieu, Jean-Philippe, Blackman, Joshua W., Cole, Andrew A., Terry, Sean K., Koshimoto, Naoki, Bhattacharya, Aparna, Vandorou, Aikaterini, Plunkett, Thomas J., Marquette, Jean-Baptiste
We revisit the planetary microlensing event OGLE-2013-BLG-0132/MOA-2013-BLG-148 using Keck adaptive optics imaging in 2013 with NIRC2 and in 2020, 7.4 years after the event, with OSIRIS. The 2020 observations yield a source and lens separation of $ 5
Externí odkaz:
http://arxiv.org/abs/2401.17549
Autor:
Kharb, Preeti, Blackman, Eric G., Clausen-Brown, Eric, Das, Mousumi, Schwartz, Daniel A., Siemiginowska, Aneta, Subramanian, Smitha, Vaddi, Sravani
We report superluminal jet motion with an apparent speed of $\beta_\mathrm{app}=1.65\pm0.57$ in the radio-quiet (RQ) low ionisation nuclear emission line region (LINER) galaxy, KISSR872. This result comes from two epoch phase-referenced very long bas
Externí odkaz:
http://arxiv.org/abs/2312.11402
Autor:
Valenzuela-Villaseca, V., Suttle, L. G., Suzuki-Vidal, F., Halliday, J. W. D., Russell, D. R., Merlini, S., Tubman, E. R., Hare, J. D., Chittenden, J. P., Koepke, M. E., Blackman, E. G., Lebedev, S. V.
Recent pulsed-power experiments have demonstrated the formation of astrophysically-relevant, differentially rotating plasmas [1]. Key features of the plasma flows are the discovery of a quasi-Keplerian rotation curve, the launching of highly-collimat
Externí odkaz:
http://arxiv.org/abs/2312.02346
Autor:
Markwick, R. N., Frank, A., Blackman, E. G., Carroll-Nellenback, J., Lebedev, S. V., Russell, D. R., Halliday, J. W. D., Suttle, L. G., Hartigan, P. M.
We report on the results of a simulation based study of colliding magnetized plasma flows. Our set-up mimics pulsed power laboratory astrophysical experiments but, with an appropriate frame change, are relevant to astrophysical jets with internal vel
Externí odkaz:
http://arxiv.org/abs/2311.07717