175 citations · 1.4k across the 38 of their papers we have counts for
5 papers · 1 filter
The FFX Correlator
Satoru Iguchi, Takeshi Okuda
We established a new algorithm for correlation process in radio astronomy. This scheme consists of the 1st-stage Fourier Transform as a filter and the 2nd-stage Fourier Transform f…
Performance Measurements of 8-Gsps 1-bit ADCs Developed for Wideband Radio Astronomical Observations
T. Okuda, S. Iguchi
8-Gsps 1-bit Analog-to-Digital Converters (ADCs) were newly developed toward the realization of the wideband observation. The development of the wideband ADCs is one of the most es…
Orbital Motion in the Radio Galaxy 3C 66B: Evidence for a Supermassive Black Hole Binary
H. Sudou, S. Iguchi, Y. Murata +1
Supermassive black hole binaries may exist in the centers of active galactic nuclei like quasars and radio galaxies and mergers between galaxies may result in the formation of supe…
A Helical Magnetic Field in the Jet of 3C 273
Keiichi Asada, Makoto Inoue, Yutaka Uchida +4
Both in the Faraday Rotation Measure and the intrinsic polarization angle, new features are revealed to indicate a helical magnetic field operating along the jet of the bright acti…
Pair Plasma Dominance in the Parsec-Scale Relativistic Jet of 3C345
K. Hirotani, S. Iguchi, M. Kimura +1
We investigate whether a pc-scale jet of 3C345 is dominated by a normal plasma or an electron-positron plasma. We present a general condition that a jet component becomes optically…