3 citations · 3 across the 1 of their papers we have counts for
8 papers
Magnetic Structures in Gamma-Ray Burst Jets Probed by Gamma-Ray Polarization
Daisuke Yonetoku, Toshio Murakami, Shuichi Gunji +10
We report polarization measurements in two prompt emissions of gamma-ray bursts, GRB 110301A and GRB 110721A, observed with the Gamma-ray burst polarimeter (GAP) aboard IKAROS sola…
Strict Limit on CPT Violation from Polarization of Gamma-Ray Bursts
Kenji Toma, Shinji Mukohyama, Daisuke Yonetoku +9
We report the strictest observational verification of CPT invariance in the photon sector, as a result of gamma-ray polarization measurement of distant gamma-ray bursts (GRBs), whi…
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…
Identifying Subclasses of Long Gamma-Ray Bursts with Cumulative Light Curve Morphology of Prompt Emissions
Ryo Tsutsui, Takashi Nakamura, Daisuke Yonetoku +2
We argue a new classification scheme of long gamma-ray bursts (LGRBs) using the morphology of the cumulative light curve of the prompt emission. We parametrize the morphology by th…