Ryo Tsutsui

activity

20072017

1.8 < z < 5.6

Suggest that the Time Variation of the Dark Energy is Small

97 citations · 367 across the 14 of their papers we have counts for

collaborators

Showing 2008Show all

3 papers · 1 filter

astro-ph2008★ 36 cited

Cosmological Constraints from calibrated Yonetoku and Amati relation implies Fundamental plane of Gamma-ray bursts

Ryo Tsutsui, Takashi Nakamura, Daisuke Yonetoku +3

We consider two empirical relations using data only from the prompt emission of Gamma-Ray Bursts (GRBs), peak energy ( $E_{p}$ ) - peak luminosity ( $L_{p}$ ) relation (so called Yonetoku…

astro-ph2008★ 36 cited

Constraints on $w_{0}$ and $w_{a}$ of Dark Energy from High Redshift Gamma Ray Bursts

Ryo Tsutsui, Takashi Nakamura, Daisuke Yonetoku +4

We extend the Hubble diagram up to $z = 5.6$ using 63 gamma-ray bursts (GRBs) via peak energy-peak luminosity relation (so called Yonetoku relation), and obtain constraints on cosm…

astro-ph2008★ 97 cited

Gamma-Ray Bursts in $1.8 < z < 5.6$ Suggest that the Time Variation of the Dark Energy is Small

Yoshiki Kodama, Daisuke Yonetoku, Toshio Murakami +3

We calibrated the peak energy-peak luminosity relation of GRBs (so called Yonetoku relation) using 33 events with the redshift $z < 1.62$ without assuming any cosmological models.…

Cosmological Constraints from calibrated Yonetoku and Amati relation implies Fundamental plane of Gamma-ray bursts

Constraints on w0​ and wa​ of Dark Energy from High Redshift Gamma Ray Bursts

Gamma-Ray Bursts in 1.8<z<5.6 Suggest that the Time Variation of the Dark Energy is Small

Constraints on $w_{0}$ and $w_{a}$ of Dark Energy from High Redshift Gamma Ray Bursts

Gamma-Ray Bursts in $1.8 < z < 5.6$ Suggest that the Time Variation of the Dark Energy is Small