Zobrazeno 1 - 10
of 253
pro vyhledávání: '"Cheung, Mark"'
Studying the magnetic field properties on the solar surface is crucial for understanding the solar and heliospheric activities, which in turn shape space weather in the solar system. Surface Flux Transport (SFT) modelling helps us to simulate and ana
Externí odkaz:
http://arxiv.org/abs/2409.01744
When gravitational waves pass near a gravitating object, they are deflected, or lensed. If the object is massive, such that the wavelength of the waves is small compared to its gravitational size, lensed gravitational wave events can be identified wh
Externí odkaz:
http://arxiv.org/abs/2403.13876
Autor:
Yi, Sophia, Kuntz, Adrien, Barausse, Enrico, Berti, Emanuele, Cheung, Mark Ho-Yeuk, Kritos, Konstantinos, Maselli, Andrea
Publikováno v:
Phys. Rev. D 109, 124029 (2024)
In the aftermath of a binary black hole merger event, the gravitational wave signal emitted by the remnant black hole is modeled as a superposition of damped sinusoids known as quasinormal modes. While the dominant quasinormal modes originating from
Externí odkaz:
http://arxiv.org/abs/2403.09767
Publikováno v:
Phys. Rev. D 109 (2024) 4, 044069
In general relativity, when two black holes merge they produce a rotating (Kerr) black hole remnant. According to perturbation theory, the remnant emits "ringdown" radiation: a superposition of exponentials with characteristic complex frequencies tha
Externí odkaz:
http://arxiv.org/abs/2310.04489
Autor:
Oka, Mitsuo, Caspi, Amir, Chen, Bin, Cheung, Mark, Drake, James, Gary, Dale, Glesener, Lindsay, Guo, Fan, Ji, Hantao, Li, Xiaocan, Nakamura, Takuma, Narukage, Noriyuki, Reeves, Katharine, Saint-Hilaire, Pascal, Sakao, Taro, Shen, Chengcai, Winebarger, Amy, Woods, Tom
Publikováno v:
Bulletin of the AAS, Vol. 55, Issue 3, Whitepaper #302 (10pp); 2023 July 31
Particles are accelerated to very high, non-thermal energies during explosive energy-release phenomena in space, solar, and astrophysical plasma environments. In the case of solar flares, it has been established that magnetic reconnection plays an im
Externí odkaz:
http://arxiv.org/abs/2306.04909
We present a new simulation setup using the MURaM radiative Magnetohydrodynamic (MHD) code that allows to study the formation of collisional polarity inversion lines (cPILs) in the photosphere and the coronal response including flares. In this scheme
Externí odkaz:
http://arxiv.org/abs/2303.05299
We review the surface flux transport model for the evolution of magnetic flux patterns on the Sun's surface. Our underlying motivation is to understand the model's prediction of the polar field (or axial dipole) strength at the end of the solar cycle
Externí odkaz:
http://arxiv.org/abs/2303.01209
Autor:
Barnes, Graham, DeRosa, Marc L., Jones, Shaela I., Arge, Charles N., Henney, Carl J., Cheung, Mark C. M.
The concept of surface-flux transport (SFT) is commonly used in evolving models of the large-scale solar surface magnetic field. These photospheric models are used to determine the large-scale structure of the overlying coronal magnetic field, as wel
Externí odkaz:
http://arxiv.org/abs/2302.06496
Autor:
Baibhav, Vishal, Cheung, Mark Ho-Yeuk, Berti, Emanuele, Cardoso, Vitor, Carullo, Gregorio, Cotesta, Roberto, Del Pozzo, Walter, Duque, Francisco
Black hole spectroscopy is the program to measure the complex gravitational-wave frequencies of merger remnants, and to quantify their agreement with the characteristic frequencies of black holes computed at linear order in black hole perturbation th
Externí odkaz:
http://arxiv.org/abs/2302.03050
We present a method of conducting data-driven simulations of solar active regions and flux emergence with the MURaM radiative magnetohydrodynamics (MHD) code. The horizontal electric field derived from the full velocity and magnetic vectors, is imple
Externí odkaz:
http://arxiv.org/abs/2301.07621