activity
20062026
most citedDiscovery of the Fastest Early Optical Emission from Overluminous SN Ia 2020hvf: A Thermonuclear Explosion within a Dense Circumstellar Environment

50 citations · 452 across the 36 of their papers we have counts for

collaborators

37 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.EP2026

An optical transient candidate of 2-second duration captured by wide-field video observations

Noriaki Arima, Mamoru Doi, Shigeyuki Sako +14

Recent time-domain surveys have revealed rapid transients that evolve on timescales of days, expanding the transient population into the short-duration regime. The tr…

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.GA2025★ 8 cited

MAGIS (Measuring Abundances of red super Giants with Infrared Spectroscopy) project I. Establishment of an abundance analysis procedure for red supergiants and its evaluation with nearby stars

Daisuke Taniguchi, Noriyuki Matsunaga, Naoto Kobayashi +11

[Abbreviated] Context. Given their high luminosities (L>~10^4Lsun), red supergiants (RSGs) are good tracers of the chemical abundances of the young stellar population in the Milky…

astro-ph.HE2024

Optical Variability of Blazars in the Tomo-e Gozen Northern Sky Transient Survey

TianFang Zhang, Mamoru Doi, Mitsuru Kokubo +14

We studied the optical variability of 241 BL Lacs and 83 flat-spectrum radio quasars (FSRQ) from the 4LAC catalog using data from the Tomo-e Gozen Northern Sky Transient Survey, wi…

astro-ph.EP2024

[N I] 10400/10410 Å Lines as Possible Disk Wind Tracers in a Young Intermediate-Mass Star

Haruki Katoh, Chikako Yasui, Yuji Ikeda +10

In this study, we performed high-resolution near-infrared (NIR) spectroscopy (R = 28,000; -1.35 m) with a high signal-to-noise ratio on HD 200775, a very young (${\sim…