Zobrazeno 1 - 10
of 25 153
pro vyhledávání: '"Hodgson P."'
Autor:
Vankadari, Madhu, Hodgson, Samuel, Shin, Sangyun, Markham, Kaichen Zhou Andrew, Trigoni, Niki
Self-supervised depth estimation algorithms rely heavily on frame-warping relationships, exhibiting substantial performance degradation when applied in challenging circumstances, such as low-visibility and nighttime scenarios with varying illuminatio
Externí odkaz:
http://arxiv.org/abs/2405.11158
Autor:
Paraschos, G. F., Debbrecht, L. C., Kramer, J. A., Traianou, E., Liodakis, I., Krichbaum, T. P., Kim, J. -Y., Janssen, M., Nair, D. G., Savolainen, T., Ros, E., Bach, U., Hodgson, J. A., Lisakov, M., MacDonald, N. R., Zensus, J. A.
Publikováno v:
A&A 686, L5 (2024)
The spatial scales of relativistic radio jets, probed by relativistic magneto-hydrodynamic jet launching simulations (RMHDs) and by most very-long-baseline interferometry (VLBI) observations differ by an order of magnitude. Bridging the gap between t
Externí odkaz:
http://arxiv.org/abs/2405.00097
Sentiment analysis (SA) has been, and is still, a thriving research area. However, the task of Arabic sentiment analysis (ASA) is still underrepresented in the body of research. This study offers the first in-depth and in-breadth analysis of existing
Externí odkaz:
http://arxiv.org/abs/2403.01921
Autor:
Hodgson, Liam, Bzdok, Danilo
The multivariate hypergeometric distribution describes sampling without replacement from a discrete population of elements divided into multiple categories. Addressing a gap in the literature, we tackle the challenge of estimating discrete distributi
Externí odkaz:
http://arxiv.org/abs/2402.14220
Autor:
Lee, Jee Won, Lee, Sang-Sung, Hodgson, Jeffrey, Juan-Carlos, Algaba, Kim, Sang-Hyun, Cheong, Whee Yeon, Jeong, Hyeon-Woo, Kang, Sincheol
We present the results of a spectral analysis using simultaneous multifrequency (22, 43, 86, and 129 GHz) very long baseline interferometry (VLBI) observations of the Korean VLBI Network (KVN) on BL Lac object, Markarian 421 (Mrk 421). The data we us
Externí odkaz:
http://arxiv.org/abs/2402.11899
Publikováno v:
Symmetry 16, 279 (2024)
The relativistic Doppler effect comes from the fact that observers in different inertial reference frames experience space and time differently, while the speed of light remains always the same. Consequently, a wave packet of light exhibits different
Externí odkaz:
http://arxiv.org/abs/2401.02175
Autor:
Traianou, Efthalia, Krichbaum, Thomas P., Gómez, José L., Lico, Rocco, Paraschos, Georgios Filippos, Cho, Ilje, Ros, Eduardo, Zhao, Guang-Yao, Liodakis, Ioannis, Dahale, Rohan, Toscano, Teresa, Fuentes, Antonio, Foschi, Marianna, Casadio, Carolina, MacDonald, Nicholas, Kim, Jae-Young, Hervet, Olivier, Jorstad, Svetlana, Lobanov, Andrei P., Hodgson, Jeffrey, Myserlis, Ioannis, Agudo, Ivan, Zensus, Anton J., Marscher, Alan P.
One of the most well-known extragalactic sources in the sky, quasar 3C 454.3, shows a curved parsec-scale jet that has been exhaustively monitored with very-long-baseline interferometry (VLBI) over the recent years. In this work, we present a compreh
Externí odkaz:
http://arxiv.org/abs/2312.15556
Autor:
Kam, Minchul, Hodgson, Jeffrey A., Park, Jongho, Kino, Motoki, Nagai, Hiroshi, Trippe, Sascha, Wagner, Alexander Y.
We present the kinematics of the parsec-scale jet in 3C 84 from 2003 November to 2022 June observed with the Very Long Baseline Array (VLBA) at 43 GHz. We find that the C3 component, a bright feature at the termination region of the jet component eje
Externí odkaz:
http://arxiv.org/abs/2312.13666
Autor:
Paraschos, G. F., Kim, J. -Y., Krichbaum, T. P., Oh, J., Hodgson, J. A., Gurwell, M. A., Zensus, J. A.
The study of jet launching in AGN is an important research method to better understand supermassive black holes (SMBHs) and their immediate surroundings. The main theoretical jet launching scenarios invoke either magnetic field lines anchored to the
Externí odkaz:
http://arxiv.org/abs/2312.01953
Autor:
Park, Jongho, Kino, Motoki, Nagai, Hiroshi, Nakamura, Masanori, Asada, Keiichi, Kam, Minchul, Hodgson, Jeffrey A.
Highly collimated relativistic jets are a defining feature of certain active galactic nuclei (AGN), yet their formation mechanism remains elusive. Previous observations and theoretical models have proposed that the ambient medium surrounding the jets
Externí odkaz:
http://arxiv.org/abs/2311.08647