Search Results - "Kimura, S"

High-energy Neutrinos from Magnetized Coronae of Active Galactic Nuclei and Prospects for Identification of Seyfert Galaxies and Quasars in Neutrino Telescopes by Kheirandish, Ali, Murase, Kohta, Kimura, Shigeo S.

“…Abstract Particles may be accelerated in magnetized coronae via magnetic reconnections and/or plasma turbulence, leading to high-energy neutrinos and soft γ…”
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Outflow Bubbles from Compact Binary Mergers Embedded in Active Galactic Nuclei: Cavity Formation and the Impact on Electromagnetic Counterparts by Kimura, Shigeo S., Murase, Kohta, Bartos, Imre

“…Abstract We propose a novel scenario for possible electromagnetic (EM) emission by compact binary mergers in the accretion disks of active galactic nuclei…”
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Acceleration and escape processes of high-energy particles in turbulence inside hot accretion flows by Kimura, Shigeo S, Tomida, Kengo, Murase, Kohta

“…Abstract We investigate acceleration and propagation processes of high-energy particles inside hot accretion flows. The magnetorotational instability (MRI)…”
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High-energy Neutrino and Gamma-Ray Emission from Tidal Disruption Events by Murase, Kohta, Kimura, Shigeo S., Zhang, B. Theodore, Oikonomou, Foteini, Petropoulou, Maria

“…Abstract Tidal disruption events (TDE) have been considered as cosmic-ray and neutrino sources for a decade. We suggest two classes of new scenarios for…”
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Hadronic High-energy Emission from Magnetically Arrested Disks in Radio Galaxies by Kimura, Shigeo S., Toma, Kenji

“…We propose a novel interpretation that gamma rays from nearby radio galaxies are hadronic emission from magnetically arrested disks (MADs) around central black…”
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Observable Signature of Merging Stellar-mass Black Holes in Active Galactic Nuclei by Tagawa, Hiromichi, Kimura, Shigeo S., Haiman, Zoltán, Perna, Rosalba, Bartos, Imre

“…Abstract The origin of stellar-mass black hole mergers discovered through gravitational waves is being widely debated. Mergers in the disks of active galactic…”
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High-energy Electromagnetic, Neutrino, and Cosmic-Ray Emission by Stellar-mass Black Holes in Disks of Active Galactic Nuclei by Tagawa, Hiromichi, Kimura, Shigeo S., Haiman, Zoltán

“…Abstract Some Seyfert galaxies are detected in high-energy gamma rays, but the mechanism and site of gamma-ray emission are unknown. Also, the origins of the…”
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Can Stellar-mass Black Hole Growth Disrupt Disks of Active Galactic Nuclei? The Role of Mechanical Feedback by Tagawa, Hiromichi, Kimura, Shigeo S., Haiman, Zoltán, Perna, Rosalba, Tanaka, Hidekazu, Bartos, Imre

“…Abstract Stellar-mass BHs (sBHs) are predicted to be embedded in active galactic nucleus (AGN) disks owing to gravitational drag and in situ star formation…”
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Can natural convection alone explain the Mpemba effect? by Vynnycky, M., Kimura, S.

“…The Mpemba effect is popularly summarized by the statement that “hot water can freeze faster than cold water”, and has been observed experimentally since the…”
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Deciphering the Origin of the GeV–TeV Gamma-Ray Emission from SS 433 by Kimura, Shigeo S., Murase, Kohta, Mészáros, Peter

“…Abstract We investigate hadronic and leptonic scenarios for the GeV–TeV gamma-ray emission from jets of the microquasar SS 433. The emission region of the TeV…”
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Neutrinos from the Brightest Gamma-Ray Burst? by Murase, Kohta, Mukhopadhyay, Mainak, Kheirandish, Ali, Kimura, Shigeo S., Fang, Ke

“…Abstract We discuss implications that can be obtained by searches for neutrinos from the brightest gamma-ray burst (GRB), GRB 221009A. We derive constraints on…”
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High-energy Neutrinos from Late-time Jets of Gamma-Ray Bursts Seeded with Cocoon Photons by Matsui, Riki, Kimura, Shigeo S., Hamidani, Hamid

“…Abstract In gamma-ray bursts (GRBs), ∼100–1000 s after the prompt emission, afterglow observations have consistently shown X-ray excesses detected in the form…”
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Soft gamma rays from low accreting supermassive black holes and connection to energetic neutrinos by Kimura, Shigeo S., Murase, Kohta, Mészáros, Péter

“…The Universe is filled with a diffuse background of MeV gamma-rays and PeV neutrinos, whose origins are unknown. Here, we propose a scenario that can account…”
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Magnetically Arrested Disks in Quiescent Black Hole Binaries: Formation Scenario, Observable Signatures, and Potential PeVatrons by Kimura, Shigeo S., Sudoh, Takahiro, Kashiyama, Kazumi, Kawanaka, Norita

“…Abstract We propose magnetically arrested disks (MADs) in quiescent (low-luminosity) black hole (BH) binaries as the origin of multiwavelength emission, and…”
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Quadratic Fermi node in a 3D strongly correlated semimetal by Kondo, Takeshi, Nakayama, M., Chen, R., Ishikawa, J. J., Moon, E.-G., Yamamoto, T., Ota, Y., Malaeb, W., Kanai, H., Nakashima, Y., Ishida, Y., Yoshida, R., Yamamoto, H., Matsunami, M., Kimura, S., Inami, N., Ono, K., Kumigashira, H., Nakatsuji, S., Balents, L., Shin, S.

“…Strong spin–orbit coupling fosters exotic electronic states such as topological insulators and superconductors, but the combination of strong spin–orbit and…”
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Late Engine Activity in Neutron Star Mergers and Its Cocoon: An Alternative Scenario for the Blue Kilonova by Hamidani, Hamid, Kimura, Shigeo S., Tanaka, Masaomi, Ioka, Kunihito

“…Abstract Follow-up observations of short gamma-ray bursts (sGRBs) have continuously unveiled late extended/plateau emissions, attributed to jet launch due to…”
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Homology models of the HIV-1 attachment inhibitor BMS-626529 bound to gp120 suggest a unique mechanism of action by Langley, David R., Roy Kimura, S., Sivaprakasam, Prasanna, Zhou, Nannan, Dicker, Ira, McAuliffe, Brian, Wang, Tao, Kadow, John F., Meanwell, Nicholas A., Krystal, Mark

“…ABSTRACT HIV‐1 gp120 undergoes multiple conformational changes both before and after binding to the host CD4 receptor. BMS‐626529 is an attachment inhibitor…”
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Modeling Hadronic Gamma-Ray Emissions from Solar Flares and Prospects for Detecting Nonthermal Signatures from Protostars by Kimura, Shigeo S., Takasao, Shinsuke, Tomida, Kengo

“…Abstract We investigate gamma-ray emission in the impulsive phase of solar flares and the detectability of nonthermal signatures from protostellar flares…”
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Observable Signatures of Stellar-mass Black Holes in Active Galactic Nuclei by Tagawa, Hiromichi, Kimura, Shigeo S., Haiman, Zoltán, Perna, Rosalba, Bartos, Imre

“…Abstract Stellar-mass black holes (BHs) are predicted to be embedded in the disks of active galactic nuclei (AGNs) due to gravitational drag and in situ star…”
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Double Neutron Star Mergers and Short Gamma-ray Bursts: Long-lasting High-energy Signatures and Remnant Dichotomy by Murase, Kohta, Toomey, Michael W., Fang, Ke, Oikonomou, Foteini, Kimura, Shigeo S., Hotokezaka, Kenta, Kashiyama, Kazumi, Ioka, Kunihito, Mészáros, Peter

“…The recent detection of gravitational waves and electromagnetic counterparts from the double neutron star merger event GW+EM170817 supports the standard…”
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