Gamma Ray Bursts Spectral–Energy correlations: recent results

  title={Gamma Ray Bursts Spectral–Energy correlations: recent results},
  author={Giancarlo Ghirlanda},
  journal={Proceedings of the International Astronomical Union},
  pages={344 - 348}
  • G. Ghirlanda
  • Published 1 September 2010
  • Physics
  • Proceedings of the International Astronomical Union
Abstract The correlations between the rest frame peak of the νFν spectrum of GRBs (Epeak) and their isotropic energy (Eiso) or luminosity (Liso) could have several implications for the understanding of the GRB prompt emission. These correlations are presently founded on the time–averaged spectral properties of a sample of 95 bursts, with measured redshifts, collected by different instruments in the last 13 years (pre–Fermi). One still open issue is wether these correlations have a physical… 
The Observer's Guide to the Gamma-Ray Burst-Supernova Connection
We present a detailed report of the connection between long-duration gamma-ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how
Gamma-Ray Burst in the Swift/Fermi Era and Beyond
e Swift and Fermi satellites have been observing gammaray bursts (GRBs), which are short-lived and intense flashes of gamma-rays associated with the death/explosion of massive stars and/or compact


The peak luminosity–peak energy correlation in gamma-ray bursts
We derive the correlation between the peak luminosity Liso and the peak energy of the ν Fν spectrum Epeak using 25 long gamma-ray bursts (GRBs) with firm redshift measurements. We find that its slope
Spectral evolution of Fermi/GBM short Gamma-Ray Bursts
We study the spectral evolution of 13 short duration Gamma Ray Bursts (GRBs) detected by the Gamma Burst Monitor (GBM) on board Fermi. We study spectra resolved in time at the level of 2 ‐ 512 ms in
The spectra of short gamma-ray bursts
We present the results of the spectral analysis of a sample of short bright γ-ray bursts (GRB) detected by BATSE and compare them with the average and time resolved spectral properties of long bright
Outliers to the peak energy–isotropic energy relation in gamma-ray bursts
The peak energy–isotropic energy (EpEi) relation is among the most intriguing recent discoveries concerning gamma-ray bursts (GRBs). It can have numerous implications for our understanding of the
Extremely energetic Fermi Gamma-Ray Bursts obey spectral energy correlations
The extremely energetic Fermi GRBs 080916C, with its Eiso of ~ 10^{55} erg in 1 keV - 10 GeV and intense GeV emission, and 090323 give us a unique opportunity to test the reliability and extension of
Energetics–spectral correlations versus the BATSE gamma-ray bursts population
The proposed correlations between the energetics of gamma-ray bursts (GRBs) and their spectral properties, namely the peak energy of their prompt emission, can broadly account for the observed
The Epeak-Eiso plane of long Gamma Ray Bursts and selection effects
We study the distribution of long gamma-ray bursts in the Epeak‐Eiso and in the E obs ‐fluence planes through an updated sample of 76 bursts, with measured redshift and spectral parameters, detected
Peak energy of the prompt emission of long gamma-ray bursts versus their fluence and peak flux
The spectral-energy (and luminosity) correlations in long gamma-ray bursts are being hotly debated to establish, first of all, their reality against possible selection effects. These are best studied
Short versus long gamma-ray bursts: spectra, energetics, and luminosities
We compare the spectral properties of 79 short and 79 long Gamma-Ray Bursts (GRBs) detected by BATSE and selected with the same limiting peak flux. Short GRBs have a low-energy spectral component
Intrinsic spectra and energetics of BeppoSAX Gamma-Ray Bursts with known redshifts
We present the main results of a study of spectral and energetics properties of twelve gamma-ray bursts (GRBs) with redshift estimates. All GRBs in our sample were detected by BeppoSAX in a broad