activity
20002026
most citedEarly phase observations of extremely luminous Type Ia Supernova 2009dc

165 citations · 928 across the 31 of their papers we have counts for

collaborators

32 papers

astro-ph.SR2026

Bright Metal-Poor Star Survey - I. Tomo-e Gozen narrow-band photometric survey and medium-resolution spectroscopic follow-up

Hiroko Okada, Takumi Iwasaki, Nozomu Tominaga +21

We present the Tomo-e Gozen Bright Metal-Poor Star Survey (TeMPS), a wide-area narrow-band photometric survey for bright metal-poor stars in the northern sky. The survey uses the T…

astro-ph.EP2025

Second-timescale Glints from Satellites and Space Debris Detected with Tomo-e Gozen

Masaomi Tanaka, Ichiro Takahashi, Naoki Yoshida +17

A search for second-timescale optical transients is one of the frontiers of time-domain astronomy. However, it has been pointed out that reflections of sunlight from Earth-orbiting…

astro-ph.HE2017★ 17 cited

Broad-Lined Supernova 2016coi with Helium Envelope

Masayuki Yamanaka, Tatsuya Nakaoka, Masaomi Tanaka +38

We present the early-phase spectra and the light curves of the broad-lined supernova (SN) 2016coi from to days after the estimated explosion date. This SN was initially…

astro-ph.GA2014★ 20 cited

Variable optical polarization during high state in gamma-ray loud narrow line Seyfert 1 galaxy 1H 0323+342

Ryosuke Itoh, Yasuyuki T. Tanaka, Hiroshi Akitaya +34

We present results of optical polarimetric and multi-band photometric observations for gamma-ray loud narrow-line Seyfert 1 galaxy 1H 0323+342. This object has been monitored by 1.…

astro-ph.HE2013★ 39 cited

A Luminous and Fast-Expanding Type Ib Supernova SN 2012au

K. Takaki, K. S. Kawabata, M. Yamanaka +15

We present a set of photometric and spectroscopic observations of a bright Type Ib supernova SN 2012au from -6d until ~+150d after maximum. The shape of its early R-band light curv…

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…