Blar i NTNU Open på forfatter "Murase, Kohta"
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Flare Duty Cycle of Gamma-Ray Blazars and Implications for High-energy Neutrino Emission
Yoshida, Kenji; Petropoulou, Maria; Murase, Kohta; Oikonomou, Foteini (Journal article; Peer reviewed, 2023) -
Gamma-ray counterparts of 2WHSP high-synchrotron-peaked BL Lac objects as possible signatures of ultra-high-energy cosmic ray emission
Toomey, Michael; Oikonomou, Foteini; Murase, Kohta (Peer reviewed; Journal article, 2020)We present a search for high-energy γ-ray emission from 566 Active Galactic Nuclei at redshift z > 0.2, from the 2WHSP catalogue of high-synchrotron peaked BL Lac objects with 8 yr of Fermi-LAT data. We focus on a redshift ... -
High-Energy Neutrino and Gamma-Ray Emission from Tidal Disruption Events
Murase, Kohta; Kimura, Shigeo; Zhang, Bing; Oikonomou, Foteini; Petropoulou, Maria (Peer reviewed; Journal article, 2020)Tidal disruption events (TDE) have been considered as cosmic-ray and neutrino sources for a decade. We suggest two classes of new scenarios for high-energy multi-messenger emission from TDEs that do not have to harbor ... -
A Neutral Beam Model for High-Energy Neutrino Emission from the Blazar TXS 0506+056
Zhang, Bing; Petropoulou, Maria; Murase, Kohta; Oikonomou, Foteini (Peer reviewed; Journal article, 2020)The IceCube collaboration reported an ~3.5σ excess of 13 ± 5 neutrino events in the direction of the blazar TXS 0506+056 during an ~6 month period in 2014–2015, as well as the (~3σ) detection of a high-energy muon neutrino ...