An external-shock origin of the relation for gamma-ray bursts

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An external - shock origin of the E p ∝ E 1 / 2 γ relation for Gamma - Ray Bursts

We investigate the possibility that the Ep ∝ E 1/2 γ relation between the peak energy Ep of the νFν spectrum and energy output Eγ for long-duration GRBs arises from the external shock produced by the interaction of a relativistic outflow with the ambient medium. To that aim, we take into account the dependence of all parameters which determine Ep and Eγ on the radial distribution of the ambient...

متن کامل

On the origin of gamma-ray bursts.

Gamma-ray bursts are the most energetic explosions in the Universe, occurring at cosmological distances. The initial phase of the emission from these bursts is predominantly of gamma rays and stems from a highly relativistic outflow. The nature of this emission is still under debate. Here, I present the interpretation that the peak in the photon spectrum can be attributed to the black-body emis...

متن کامل

On the Origin of Gamma Ray Bursts

relativistic flows by star-light in dense stellar regions followed by emission of decay/recombination photons, which are beamed and boosted to γ ray energies in the observer frame, produce gamma ray bursts (GRBs). We show that this overlooked mechanism is able to convert efficiently baryonic kinetic energy release in merger or accretion induced collapse of neutron stars into cosmological GRBs a...

متن کامل

Gamma Ray Bursts and Cosmic Ray Origin

This paper presents the theoretical basis of the fireball/blast wave model, and some implications of recent results on GRB source models and cosmic-ray production from GRBs. BATSE observations of the prompt γ-ray luminous phase, and Beppo-SAX and long wavelength afterglow observations of GRBs are briefly summarized. Derivation of spectral and temporal indices of an adiabatic blast wave decelera...

متن کامل

Neutrino, Neutron, and Cosmic Ray Production in the External Shock Model of Gamma Ray Bursts

The hypothesis that ultra-high energy (& 1019 eV) cosmic rays (UHECRs) are accelerated by gamma-ray burst (GRB) blast waves is assumed to be correct. Implications of this assumption are then derived for the external shock model of gamma-ray bursts. The evolving synchrotron radiation spectrum in GRB blast waves provides target photons for the photomeson production of neutrinos and neutrons. Deca...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Monthly Notices of the Royal Astronomical Society

سال: 2009

ISSN: 0035-8711,1365-2966

DOI: 10.1111/j.1365-2966.2008.14240.x