Improved Ep-TL-Lp Diagram and a Robust Regression Method

  title={Improved Ep-TL-Lp Diagram and a Robust Regression Method},
  author={Ryo Tsutsui and Takashi Nakamura and Daisuke Yonetoku and T Murakami and Yoshiyuki Morihara and Keitaro Takahashi},
  journal={Publications of the Astronomical Society of Japan},
The accuracy and reliability of gamma-ray bursts (GRBs) as distance indicators are strongly restricted by their systematic errors, which are larger than the statistical errors. These systematic errors might come from either intrinsic variations of GRBs, or systematic errors in observations. In this paper, we consider the possible origins of systematic errors in the following observables: (i) the spectral peak energies (Ep) estimated by the cut-off power law (CPL) function and (ii) the peak… 

A Comprehensive Statistical Study of Gamma-Ray Bursts

In order to obtain an overview of gamma-ray bursts (GRBs), we need a full sample. In this paper, we collected 6289 GRBs (from GRB 910421 to GRB 160509A) from the literature, including their prompt

Characterization of the GRB prompt fundamental plane using Fermi-GBM data

  • S. PradyumnaS. Desai
  • Physics
    Journal of High Energy Astrophysics
  • 2022

Identifying Subclasses of Long Gamma-Ray Bursts with Cumulative Light Curve Morphology of Prompt Emissions

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Possible existence of the Ep-Lp and Ep-Eiso correlations for short gamma-ray bursts with a factor 5–100 dimmer than those for long gamma-ray bursts

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We report the discovery of a correlation among three prompt emission properties of gamma-ray bursts (GRBs). These are the isotropic peak luminosity L iso , the peak energy (in vL v ) of the

The Collimation-corrected Gamma-Ray Burst Energies Correlate with the Peak Energy of Their νFν Spectrum

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Does the Addition of a Duration Improve the Liso-Epeak Relation for Gamma-Ray Bursts?

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The Epeak-Eiso plane of long Gamma Ray Bursts and selection effects

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One of the most prominent, yet controversial associations derived from the ensemble of prompt-phase observations of gamma-ray bursts (GRBs) is the apparent correlation in the source frame between the