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Lepton acceleration in the vicinity of the event horizon: High-energy and Very-high-energy emissions from rotating black holes with various masses
Kouichi Hirotani, Hung-Yi Pu, Lupin Chun-Che Lin +5
We investigate the electrostatic acceleration of electrons and positrons in the vicinity of the event horizon, applying the pulsar outer-gap model to black hole magnetospheres. Dur…
Structural Transition in the NGC 6251 Jet: An Interplay with the Supermassive Black Hole and Its Host Galaxy
Chih-Yin Tseng, Keiichi Asada, Masanori Nakamura +3
The structure of the NGC 6251 jet on the milliarcsecond scale is investigated using images taken with the European VLBI Network and the Very Long Baseline Array. We detect a struct…
The Effects of Accretion Flow Dynamics on the Black Hole Shadow of Sagittarius A
Hung-Yi Pu, Kazunori Akiyama, Keiichi Asada
A radiatively inefficient accretion flow (RIAF), which is commonly characterized by its sub-Keplerian nature, is a favored accretion model for the supermassive black hole at Galact…