activity
19982023
most citedA giant outburst two years before the core-collapse of a massive star

428 citations · 942 across the 24 of their papers we have counts for

collaborators

24 papers

astro-ph.GA2023

GALAXY CRUISE: Deep Insights into Interacting Galaxies in the Local Universe

Masayuki Tanaka, Michitaro Koike, Sei'ichiro Naito +15

We present the first results from GALAXY CRUISE, a community (or citizen) science project based on data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). The current p…

astro-ph.HE2016★ 25 cited

Search for Soft X-ray Flashes at Fireball Phase of Classical/Recurrent Novae using MAXI/GSC data

Mikio Morii, Hitoshi Yamaoka, Tatehiro Mihara +2

We searched for precursive soft X-ray flashes (SXFs) associated with optically-discovered classical or recurrent novae in the data of five-years all-sky observations with Gas Slit…

astro-ph.SR2012★ 21 cited

Five-Year Optical and Near Infrared Observations of the Extremely Slow Nova V1280 Scorpii

H. Naito, S. Mizoguchi, A. Arai +10

We present optical (, , , and ) and near infrared (, and ) photometric and spectroscopic observations of a classical nova V1280 Sc…

astro-ph.GA2011★ 12 cited

Ensemble Variability of Near-Infrared-Selected Active Galactic Nuclei

Shinjirou Kouzuma, Hitoshi Yamaoka

We present the properties of the ensemble variability for nearly 5000 near-infrared (NIR) AGNs selected from the catalog of Quasars and Active Galactic Nuclei (13th Ed.) and th…

astro-ph.CO2010★ 2 cited

Properties of Near-Infrared Selected AGN Candidates with 2MASS/ROSAT Catalogues

Shinjirou Kouzuma, Hitoshi Yamaoka

We report on the near-infrared selected AGN candidates extracted from 2MASS/ROSAT catalogues and discuss their properties. First, near-infrared counterparts of a X-ray source in RO…

astro-ph.CO2009★ 13 cited

Near-Infrared Colours of Active Galactic Nuclei

Shinjirou Kouzuma, Hitoshi Yamaoka

We propose near-infrared colour selection criteria to extract Active Galactic Nuclei (AGNs) using the near-infrared Colour-Colour Diagram (CCD) and predict near-infrared colour evo…