Zobrazeno 1 - 10
of 5 563
pro vyhledávání: '"P. P. Leahy"'
Autor:
Ahmad, Ahmad, Kermanshah, Mehdi, Leahy, Kevin, Serlin, Zachary, Siu, Ho Chit, Mann, Makai, Vasile, Cristian-Ioan, Tron, Roberto, Belta, Calin
In this paper, we tackle the challenging problem of delayed rewards in reinforcement learning (RL). While Proximal Policy Optimization (PPO) has emerged as a leading Policy Gradient method, its performance can degrade under delayed rewards. We introd
Externí odkaz:
http://arxiv.org/abs/2411.17861
Autor:
Ubertosi, F., Gong, Y., Nulsen, P., Leahy, J. P., Gitti, M., McNamara, B. R., Gaspari, M., Singha, M., O'Dea, C., Baum, S.
We present a detailed analysis of jet activity in the radio galaxy 3C348 at the center of the galaxy cluster Hercules A. We use archival Chandra data to investigate the jet-driven shock front, the radio-faint X-ray cavities, the eastern jet, and the
Externí odkaz:
http://arxiv.org/abs/2411.12804
Autor:
Fischer, Laurin E., Leahy, Matea, Eddins, Andrew, Keenan, Nathan, Ferracin, Davide, Rossi, Matteo A. C., Kim, Youngseok, He, Andre, Pietracaprina, Francesca, Sokolov, Boris, Dooley, Shane, Zimborás, Zoltán, Tacchino, Francesco, Maniscalco, Sabrina, Goold, John, García-Pérez, Guillermo, Tavernelli, Ivano, Kandala, Abhinav, Filippov, Sergey N.
Quantum circuits with local unitaries have emerged as a rich playground for the exploration of many-body quantum dynamics of discrete-time systems. While the intrinsic locality makes them particularly suited to run on current quantum processors, the
Externí odkaz:
http://arxiv.org/abs/2411.00765
Autor:
Nguyen, Hiep, McClure-Griffiths, N. M., Dempsey, James, Dickey, John M., Lee, Min-Young, Lynn, Callum, Murray, Claire E., Stanimirović, Snežana, Busch, Michael P., Clark, Susan E., Dawson, J. R., Dénes, Helga, Gibson, Steven, Jameson, Katherine, Joncas, Gilles, Kemp, Ian, Leahy, Denis, Ma, Yik Ki, Marchal, Antoine, Miville-Deschênes, Marc-Antoine, Pingel, Nickolas M., Seta, Amit, Soler, Juan D., van Loon, Jacco Th.
Publikováno v:
MNRAS 2024
We present the largest Galactic neutral hydrogen HI absorption survey to date, utilizing the Australian SKA Pathfinder Telescope at an unprecedented spatial resolution of 30''. This survey, GASKAP-HI, unbiasedly targets 2,714 continuum background sou
Externí odkaz:
http://arxiv.org/abs/2409.20311
Autor:
Jung, Seoyoung Lyla, Seta, A., Price, J. M., McClure-Griffiths, N. M., Livingston, J. D., Gaensler, B. M., Ma, Y. K., Tahani, M., Anderson, C. S., Federrath, C., Van Eck, C. L., Leahy, D., O'Sullivan, S. P., West, J., Heald, G., Akahori, T.
Neutral hydrogen (HI) bubbles and shells are common in the interstellar medium (ISM). Studying their properties provides insight into the characteristics of the local ISM as well as the galaxy in which the bubbles reside. We report the detection of m
Externí odkaz:
http://arxiv.org/abs/2409.17666
This work develops a zero-shot mechanism for an agent to satisfy a Linear Temporal Logic (LTL) specification given existing task primitives. Oftentimes, autonomous robots need to satisfy spatial and temporal goals that are unknown until run time. Pri
Externí odkaz:
http://arxiv.org/abs/2408.04215
We utilize the Quark-Nova (QN) model for Fast Radio Bursts (FRBs; Ouyed et al. 2021) to evaluate its performance in reproducing the distribution and statistical properties of key observations. These include frequency, duration, fluence, dispersion me
Externí odkaz:
http://arxiv.org/abs/2408.01834
Autor:
Anderson, Craig S., McClure-Griffiths, N. M., Rudnick, L., Gaensler, B. M., O'Sullivan, S. P., Bradbury, S., Akahori, T., Baidoo, L., Bruggen, M., Carretti, E., Duchesne, S., Heald, G., Jung, S. L., Kaczmarek, J., Leahy, D., Loi, F., Ma, Y. K., Osinga, E., Seta, A., Stuardi, C., Thomson, A. J. M., Van Eck, C., Vernstrom, T., West, J.
We present initial results from the Polarisation Sky Survey of the Universe's Magnetism (POSSUM), analysing 22,817 Faraday Rotation Measures (RMs) with median uncertainties of 1.2 rad m^-2 across 1,520 square degrees to study magnetised gas associate
Externí odkaz:
http://arxiv.org/abs/2407.20325
Autor:
Mould, Jeremy, Jarrett, T. H., Courtois, Hélène, Bosma, Albert, Deg, Nathan, Dupuy, Alexandra, Staveley-Smith, Lister, Taylor, E. N., English, Jayanne, Rajohnson, S. H. A., Kraan-Korteweg, Renée, Forbes, Duncan, Dénes, Helga, Lee-Waddell, Karen, Shen, Austin, Wong, O. I., Holwerda, Benne, Koribalski, Bärbel, Leahy, Denis, Piña, Pavel Mancera, Yu, Niankun
The Tully-Fisher Relation (TFR) is a well-known empirical relationship between the luminosity of a spiral galaxy and its circular velocity, allowing us to estimate redshift independent distances. Here we use high signal-to-noise HI 21-cm integrated s
Externí odkaz:
http://arxiv.org/abs/2406.10877
Autor:
Lazarević, Sanja, Filipović, Miroslav D., Koribalski, Bärbel S., Smeaton, Zachary J., Hopkins, Andrew M., Alsaberi, Rami Z. E., Velović, Velibor, Ball, Brianna D., Kothes, Roland, Leahy, Denis, Ingallinera, Adriano
Publikováno v:
Research Notes of the American Astronomical Society, 8, 107 (2024)
We report the ASKAP discovery of a new Galactic supernova remnant (SNR) candidate G308.73+1.38, which we name Raspberry. This new SNR candidate has an angular size of 20.7 arcmin $\times$ 16.7 arcmin, and we measure a total integrated flux of 407$\pm
Externí odkaz:
http://arxiv.org/abs/2405.03733