37 citations · 67 across the 5 of their papers we have counts for
5 papers
The Two-sided Jet Structures of NGC 1052 at Scales from 300 to Schwarzschild Radii
Satomi Nakahara, Akihiro Doi, Yasuhiro Murata +5
We investigated the jet width profile with distance along the jet in the nearby radio galaxy NGC 1052 at radial distances between to Schwarzschild Radii($…
Radio jet structures at ~100 parsec and larger scales of the -ray-emitting narrow-line Seyfert 1 galaxy PMN J0948+0022
Akihiro Doi, Satomi Nakahara, Masanori Nakamura +3
The narrow-line Seyfert 1 (NLS1) galaxy PMN J0948+0022 is an archetype of gamma-ray-emitting NLS1s in active galactic nuclei (AGNs). In this study, we investigate its radio structu…
A Balloon-Borne Very Long Baseline Interferometry Experiment in the Stratosphere: Systems Design and Developments
Akihiro Doi, Yusuke Kono, Kimihiro Kimura +33
The balloon-borne very long baseline interferometry (VLBI) experiment is a technical feasibility study for performing radio interferometry in the stratosphere. The flight model has…
A Recollimation Shock in a Stationary Jet Feature with Limb-brightening in the Gamma-ray Emitting Narrow-line Seyfert 1 Galaxy 1H 0323+342
Akihiro Doi, Kazuhiro Hada, Motoki Kino +2
We report the discovery of a local convergence of a jet cross section in the quasi-stationary jet feature in the gamma-ray-emitting narrow-line Seyfert 1 galaxy (NLS1) 1H 0323+342.…
A strong radio brightening at the jet base of M87 in the period of the elevated TeV gamma-ray state in 2012
K. Hada, M. Giroletti, M. Kino +18
The nearby radio galaxy M87 offers a unique opportunity for exploring the connection between gamma-ray production and jet formation at an unprecedented linear resolution. However,…