67 citations · 619 across the 60 of their papers we have counts for
10 papers · 1 filter
Upper limits on Einstein's weak equivalence principle placed by uncertainties of dispersion measures of fast radio bursts
Tetsuya Hashimoto, Tomotsugu Goto, Daryl Joe D. Santos +7
Fast radio bursts (FRBs) are astronomical transients with millisecond timescales occurring at cosmological distances. The observed time lag between different energies of each FRB i…
Constraining violations of the Weak Equivalence Principle Using CHIME FRBs
Kaustubha Sen, Tetsuya Hashimoto, Tomotsugu Goto +7
Einstein's General Relativity (GR) is the basis of modern astronomy and astrophysics. Testing the validity of basic assumptions of GR is important. In this work, we test a possible…
The evolution of merger fraction of galaxies at z < 0.6 depending on the star formation mode in the AKARI NEP Wide field
Eunbin Kim, Ho Seong Hwang, Woong-Seob Jeong +19
We study the galaxy merger fraction and its dependence on star formation mode in the5.4 square degrees of the North Ecliptic Pole-Wide field. We select 6352 galaxies withAKARI 9μm…
Environmental Effects on AGN activity via Extinction-free Mid-Infrared Census
Daryl Joe D. Santos, Tomotsugu Goto, Seong Jin Kim +20
How does the environment affect active galactic nucleus (AGN) activity? We investigated this question in an extinction-free way, by selecting 1120 infrared galaxies in the …
Optically-detected galaxy cluster candidates in the North Ecliptic Pole field based on photometric redshift from Subaru Hyper Suprime-Cam
T. -C. Huang, H. Matsuhara, T. Goto +23
Galaxy clusters provide an excellent probe in various research fields in astrophysics and cosmology. However, the number of galaxy clusters detected so far in the North Ecl…
A Dyson Sphere around a black hole
Tiger Yu-Yang Hsiao, Tomotsugu Goto, Tetsuya Hashimoto +8
The search for extraterrestrial intelligence (SETI) has been conducted for nearly 60 years. A Dyson Sphere, a spherical structure that surrounds a star and transports its radiative…