97 citations · 367 across the 14 of their papers we have counts for
14 papers
Short-range test of the universality of gravitational constant at the millimeter scale using a digital image sensor
K. Ninomiya, T. Akiyama, M. Hata +19
The composition dependence of gravitational constant is measured at the millimeter scale to test the weak equivalence principle, which may be violated at short range through ne…
On the Subclasses in Swift Long Gamma-Ray Bursts: A Clue to Different Central Engines
Ryo Tsutsui, Toshikazu Shigeyama
Analyzing light curves of a complete sample of bright Swift long gamma-ray bursts (LGRBs) of which the peak photon fluxes constructed with the bin width of 1 second in the Swift 15…
Universal scaling law in long gamma-ray bursts
Ryo Tsutsui, Toshikazu Shigeyama
Overwhelming diversity of long gamma-ray bursts (LGRBs), discovered after the launch of {\it Swift} satellite, is a major obstacle to LGRB studies. Recently, it is shown that the p…
Possible existence of Ep-Lp and Ep-Eiso correlations for Short Gamma-Ray Bursts with a factor 5 to 100 dimmer than those for Long Gamma-Ray Bursts
Ryo Tsutsui, Daisuke Yonetoku Takashi Nakamura, Keitaro Takahashi +1
We analyzed correlations among the rest frame spectral peak energy , the observed frame 64ms peak isotropic luminosity and the isotropic energy …
Gamma-Ray Bursts are precise distance indicators similar to Type Ia Supernovae?
Ryo Tsutsui, Takashi Nakamura, Daisuke Yonetoku +2
We estimate the distance modulus to long gamma-ray bursts (LGRBs) using the Type I Fundamental Plane, a correlation between the spectral peak energy , the peak luminosit…
Possible Origins of Dispersion of the Peak Energy--Brightness Correlations of Gamma-Ray Bursts
Daisuke Yonetoku, Toshio Murakami, Ryo Tsutsui +3
We collect and reanalyze about 200 GRB data of prompt-emission with known redshift observed until the end of 2009, and select 101 GRBs which were well observed to have good spectra…