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- Institute of Astronomy and Astrophysics, Academia SinicaTW1.4k papers
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7 papers · 2 filters
A survey of infrared supernova remnants in the Large Magellanic Cloud
Ji Yeon Seok, Bon-Chul Koo, Takashi Onaka
We present a comprehensive infrared study of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) using near- to mid-infrared images taken by Infrared Array Camera (IRAC;…
Discovery of Sub- to Superluminal Motions in the M87 Jet: An Implication of the Acceleration from Sub-relativistic to Relativistic Speeds
Keiichi Asada, Masanori Nakamura, Akihiro Doi +2
The velocity field of the M87 jet from milli-arcsecond (mas) to arcsecond scales is extensively investigated together with new radio images taken by EVN observations. We detected p…
The Parabolic Jet Structure in M87 as a Magnetohydrodynamic Nozzle
Masanori Nakamura, Keiichi Asada
The structure and dynamics of the M87 jet from sub-milli-arcsec to arcsecond scales are continuously examined. We analysed the VLBA archival data taken at 43 and 86 GHz to measure…
Constraints on the Viscosity and Magnetic Field in Hot Accretion Flows around Black Holes
B. F. Liu, Ronald E. Taam
The magnitude of the viscosity and magnetic field parameters in hot accretion flows is investigated in low luminosity active galactic nuclei (LLAGNs). Theoretical studies show that…
Evolution Of Post-Impact Remnant Helium Stars In Type Ia Supernova Remnants Within The Single-Degenerate Scenario
Kuo-Chuan Pan, Paul Ricker, Ronald Taam
The progenitor systems of Type Ia supernovae (SNe Ia) are still under debate. Based on recent hydrodynamics simulations, non-degenerate companions in the single-degenerate scenario…
Luminosity Evolution of Gamma-ray Pulsars
Kouichi Hirotani
We investigate the electrodynamic structure of a pulsar outer-magnetospheric particle accelerator and the resultant gamma-ray emission. By considering the condition for the acceler…