activity
20092025
most citedReverberation Measurements of the Inner Radius of the Dust Torus in 17 Seyfert Galaxies

235 citations · 450 across the 6 of their papers we have counts for

collaborators

6 papers

quant-ph2025

Embedding of Tree Tensor Networks into Shallow Quantum Circuits

Shota Sugawara, Kazuki Inomata, Tsuyoshi Okubo +1

Variational Quantum Algorithms (VQAs) are being highlighted as key quantum algorithms for demonstrating quantum advantage on Noisy Intermediate-Scale Quantum (NISQ) devices, which…

cs.CV2024★ 16 cited

PUAD: Frustratingly Simple Method for Robust Anomaly Detection

Shota Sugawara, Ryuji Imamura

Developing an accurate and fast anomaly detection model is an important task in real-time computer vision applications. There has been much research to develop a single model that…

astro-ph.GA2019★ 63 cited

Reverberation Measurements of the Inner Radii of the Dust Tori in Quasars

Takeo Minezaki, Yuzuru Yoshii, Yukiyasu Kobayashi +8

We present the results of a dust-reverberation survey of quasars at redshifts z<0.6. We found a delayed response of the K-band flux variation after the optical flux variation in 25…

astro-ph.GA2014★ 235 cited

Reverberation Measurements of the Inner Radius of the Dust Torus in 17 Seyfert Galaxies

S. Koshida, T. Minezaki, Y. Yoshii +8

We present the results of a dust reverberation survey for 17 nearby Seyfert 1 galaxies, which provides the largest homogeneous data collection for the radius of the innermost dust…

astro-ph.CO2010★ 67 cited

Long-Term Optical Continuum Color Variability of Nearby Active Galactic Nuclei

Yu Sakata, Takeo Minezaki, Yuzuru Yoshii +8

We examine whether the spectral energy distribution of optical continuum emission of active galactic nuclei (AGNs) changes during flux variation, based on accurate and frequent mon…

astro-ph.CO2009★ 69 cited

Variation of Inner Radius of Dust Torus in NGC4151

Shintaro Koshida, Yuzuru Yoshii, Yukiyasu Kobayashi +8

The long-term optical and near infrared monitoring observations for a type 1 act ive galactic nucleus NGC 4151 were carried out for six years from 2001 to 2006 b y using the MAGNUM…