Zobrazeno 1 - 10
of 3 525
pro vyhledávání: '"A, Rostom"'
Autor:
Laha, Sibasish, Ricci, Claudio, Mather, John C., Behar, Ehud, Gallo, Luigi C., Marin, Frederic, Mbarek, Rostom, Hankla, Amelia
Active galactic nuclei (AGN) are powerful sources of panchromatic radiation. All AGN emit in X-rays, contributing around $\sim 5-10\%$ of the AGN bolometric luminosity. The X-ray emitting region, popularly known as the corona, is geometrically and ra
Externí odkaz:
http://arxiv.org/abs/2412.11321
Autor:
Zou, Minghao, Hakobyan, Hayk, Mbarek, Rostom, Ripperda, Bart, Bacchini, Fabio, Sironi, Lorenzo
We propose novel numerical schemes based on the Boris method in curved spacetime, incorporating both hadronic and radiative interactions for the first time. Once the proton has lost significant energy due to radiative and hadronic losses, and its gyr
Externí odkaz:
http://arxiv.org/abs/2410.22781
It has been suggested that Centaurus A (Cen A) could make a contribution to the observed ultrahigh-energy cosmic-ray (UHECR) flux. We calculate the flux of astrophysical neutrinos produced by UHECRs accelerated in the jet of Cen A, a close-by jetted
Externí odkaz:
http://arxiv.org/abs/2410.05696
Autor:
Meyer, Eileen T., Laha, Sibasish, Shuvo, Onic I., Roychowdhury, Agniva, Green, David A., Rhodes, Lauren, Hankla, Amelia M., Philippov, Alexander, Mbarek, Rostom, laor, Ari, Begelman, Mitchell C., Sadaula, Dev R., Ghosh, Ritesh, Bruni, Gabriele, Panessa, Francesca, Guainazzi, Matteo, Behar, Ehud, Masterson, Megan, Zhang, Haocheng, Yang, Xiaolong, Gurwell, Mark A., Keating, Garrett K., Williams-Baldwin, David, Bray, Justin D., Bempong-Manful, Emmanuel K., Wrigley, Nicholas, Bianchi, Stefano, Ricci, Federica, La Franca, Fabio, Kara, Erin, Georganopoulos, Markos, Oates, Samantha, Nicholl, Matt, Pal, Main, Cenko, S. Bradley
We present multi-frequency (5-345 GHz) and multi-resolution radio observations of 1ES 1927+654, widely considered one of the most unusual and extreme changing-look active galactic nuclei (CL-AGN). The source was first designated a CL-AGN after an opt
Externí odkaz:
http://arxiv.org/abs/2406.18061
Autor:
Rostom, Aiham M.
Publikováno v:
Fortschr. Phys. 2023, 71, 2200122
The gravitationally induced entanglement is a type of quantum entanglement that can be generated between two mesoscopic particles using their Newtonian gravitational interaction. It has attracted a great deal of attention as a new platform for studyi
Externí odkaz:
http://arxiv.org/abs/2401.04520
Publikováno v:
Chinese Journal of Physics 90, 1095-1100, 2024
A model of joint random walk of two agents on an infinite plane is considered. The agents possess no means of mutual classical communication, but have access to quantum entanglement resource which is used according to a pre-arranged protocol. Dependi
Externí odkaz:
http://arxiv.org/abs/2311.07516
Autor:
Mbarek, Rostom, Philippov, Alexander, Chernoglazov, Alexander, Levinson, Amir, Mushotzky, Richard
Publikováno v:
Phys. Rev. D 109, L101306 Published 24 May 2024
We examine properties of accelerated protons potentially responsible for the neutrino excess observed in the direction of NGC 1068, using constraints from kinetic Particle-in-Cell (PIC) simulations. We find that i) coronal X-rays and Optical/Ultra-Vi
Externí odkaz:
http://arxiv.org/abs/2310.15222
Autor:
Solopova, Veronika, Gruszczynski, Adrian, Rostom, Eiad, Cremer, Fritz, Witte, Sascha, Zhang, Chengming, Plößl, Fernando Ramos López Lea, Hofmann, Florian, Romeike, Ralf, Gläser-Zikuda, Michaela, Benzmüller, Christoph, Landgraf, Tim
Written reflective practice is a regular exercise pre-service teachers perform during their higher education. Usually, their lecturers are expected to provide individual feedback, which can be a challenging task to perform on a regular basis. In this
Externí odkaz:
http://arxiv.org/abs/2307.07523
Autor:
Hassan Kadri, Mazen Dughly, Mohamad Shehadeh Agha, Raed Abouharb, Rostom Mackieh, Sameer Bakleh, Thea Kadri
Publikováno v:
Radiology Case Reports, Vol 19, Iss 8, Pp 3548-3551 (2024)
Caudal regression syndrome (CRS) is a rare genetic disorder affecting less than 0.1%-0.5% of newborns that manifests as the total or partial absence of lower vertebral structures including the sacral spine. The etiology of CRS remains elusive, but th
Externí odkaz:
https://doaj.org/article/0b3820decb024ae4a1e07e2638adecff
Autor:
Rostom, Aiham M.
Publikováno v:
Annalen der Physik, 534 2100434, 2022
To describe the pre- and post-selected quantum ensembles, a complex quantity called the weak value of an operator is used. The weak value is highly controversial due to the fact that it is not bounded by the possible eigenvalues of the corresponding
Externí odkaz:
http://arxiv.org/abs/2303.09786