Zobrazeno 1 - 10
of 5 571
pro vyhledávání: '"Liška, A."'
Autor:
Issa, Danat, Gottlieb, Ore, Metzger, Brian, Jacquemin-Ide, Jonatan, Liska, Matthew, Foucart, Francois, Halevi, Goni, Tchekhovskoy, Alexander
Collapsars - rapidly rotating stellar cores that form black holes (BHs) - can power gamma-ray bursts (GRBs) and are proposed to be key contributors to the production of heavy elements in the Universe via the rapid neutron capture process ($r$-process
Externí odkaz:
http://arxiv.org/abs/2410.02852
Autor:
Kaaz, Nicholas, Liska, Matthew, Tchekhovskoy, Alexander, Hopkins, Philip F., Jacquemin-Ide, Jonatan
Quasars are powered by supermassive black hole (SMBH) accretion disks, yet standard disk models are inconsistent with many quasar observations. Recently, Hopkins et al. (2024) simulated the formation of a quasar disk feeding a SMBH of mass $M=1.3\tim
Externí odkaz:
http://arxiv.org/abs/2410.01877
Accretion disks around both stellar-mass and supermassive black holes are likely often warped. Whenever a disk is warped, its scale height varies with azimuth. Sufficiently strong warps cause extreme compressions of the scale height, which fluid parc
Externí odkaz:
http://arxiv.org/abs/2410.00961
Autor:
Musálek, Tomáš, Liška, Petr, Morsa, Amedeo, Arregi, Jon Ander, Kratochvíl, Matouš, Sergeev, Dmitry, Müller, Michael, Šikola, Tomáš, Kolíbal, Miroslav
Inorganic halide perovskites have become attractive for many optoelectronic applications due to their outstanding properties. While chemical synthesis techniques have been successful in producing high-quality perovskite crystals, scaling up to wafer-
Externí odkaz:
http://arxiv.org/abs/2409.18294
Autor:
Galishnikova, Alisa, Philippov, Alexander, Quataert, Eliot, Chatterjee, Koushik, Liska, Matthew
We study spherical accretion of magnetized plasma with low angular momentum onto a supermassive black hole, utilizing global General Relativistic Magnetohydrodynamic simulations. Black hole-driven feedback in the form of magnetic eruptions and jets t
Externí odkaz:
http://arxiv.org/abs/2409.11486
There exist two consistent theories of self-interacting gravitons: general relativity and Weyl transverse gravity. The latter has the same classical solutions as general relativity, but different local symmetries. We argue that Weyl transverse gravit
Externí odkaz:
http://arxiv.org/abs/2409.06645
This paper introduces a computational approach to identify performance constraints in the time-domain based on optimizing the excitation waveform. The method builds on an optimization algorithm that has been employed for decades to establish fundamen
Externí odkaz:
http://arxiv.org/abs/2409.16293
Autor:
Wolf, M., Zasche, P., Kára, J., Zejda, M., Janík, J., Mašek, M., Lehký, M., Merc, J., Richterková, A., Hanžl, D., Mikulášek, Z., de Villiers, S. N., Liška, J.
New ground-based and space-based photometric data have been obtained and archival spectroscopic measurements were used in this study of three detached early-type and southern-hemisphere eccentric eclipsing binaries GM Nor (P = 1.88 d, e = 0.05), V397
Externí odkaz:
http://arxiv.org/abs/2408.06910
Recent results of the event horizon-scale images of M87* and Sagittarius A* from the Event Horizon Telescope Collaboration show that strong magnetic fields are likely present around the central black holes (BHs) in these sources. Magnetically arreste
Externí odkaz:
http://arxiv.org/abs/2407.15929
We quantify how constraints on light states affect the asymptotic growth of heavy states in weak Jacobi forms. The constraints we consider are sparseness conditions on the Fourier coefficients of these forms, which are necessary to interpret them as
Externí odkaz:
http://arxiv.org/abs/2407.06260