Radio optical emission, spectral shapes and breaks in GRB
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Radio optical emission, spectral shapes and breaks in GRB by Jonathan I. Katz

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

Subjects:

  • Gamma ray bursts.

Book details:

Edition Notes

StatementJ.I. Katz.
SeriesNASA contractor report -- NASA CR-194763.
ContributionsUnited States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL15387668M

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RADIO AND OPTICAL EMISSION, SPECTRAL SHAPES AND BREAKS IN GRB J. I. Katz Washington University, St. Louis, Mo. ABSTRACT Relativistic blast wave models of GRB predict the spectrum of the emitted synchrotron radiation. The electrons in the shocked region are heated to a Wien distribution whose “temperature” is 1/3 of the mean electron energy. This.   Relativistic blast wave models of GRB predict the spectrum of the emitted synchrotron radiation. The electrons in the shocked region are heated to a Wien distribution whose ‘‘temperature’’ is 1/3 of the mean electron energy. This energy determines a characteristic (break) frequency of synchrotron radiation. At much lower frequencies a spectrum Fν∝ν1/3 is predicted independently of Author: J. I. Katz. This is consistent with the observed soft X-ray spectra of GRB. It implies low visible and radio intensities, unless there are collective emission processes. Radio and Optical Emission, Spectral Shapes and Breaks in GRB Katz, J. I. Abstract. Relativistic blast wave models predict the spectrum of the emitted synchrotron radiation. Author: J. I. Katz. Get this from a library! Radio optical emission, spectral shapes and breaks in GRB. [Jonathan I Katz; United States. National Aeronautics and Space Administration.].

RADIO AND OPTICAL EMISSION, SPECTRAL SHAPES AND BREAKS IN GRB. Cached. Download Links [] [] Save to List; , title = {RADIO AND OPTICAL EMISSION, SPECTRAL SHAPES AND BREAKS IN GRB}, year = {}} Share. OpenURL. Abstract. Keyphrases. optical emission spectral shape break grb Powered by. Radio and optical emission: Spectral shapes and breaks in GRB. This energy determines a characteristic (break) frequency of synchrotron radiation. At much lower frequencies, a spectrum F(sub nu) varies as nu(sup 1/3) is predicted independently of the details of the emitting region. is predicted independently of the details of the. Whereas optical and radio emission from GW have now faded below detection threshold, its X-ray counterpart continues to be visible at yr after the NS merger. Earlier predictions of the structured jet model systematically underestimate the latest Chandra detections. A Gaussian structured jet can still reproduce the afterglow temporal. unperturbed IGM case and its detafled spectral shape should be easier to interpret. Note also that unlike the case of a quasar, a GRB afterglow can itself ionize at most '-^ 4 X 10'*ii5 IMQ of hydrogen if its UV energy is £51 in units of 10^ ^ ergs (based on the avaflable number of ionizing photons), and so it should have a neghgible cosmic effect.

Radio and optical emission: Spectral shapes and breaks in GRB Relativistic blast wave models of Gamma Ray Bursts (GRB) predict the spectrum of the emitted synchrotron radiation. The electrons in the shocked region are heated to a Wien distribution whose 'temperature' is 1/3 of the mean electron energy. We report that the optical polarization in the afterglow of GRB B is measured at t = s after the burst trigger, and the polarization degree is P = { ± %. The optical light curve at this time shows a power-law decay with index – ± , which is interpreted as the forward shock synchrotron emission, and thus this is the first detection of the early-time optical. Radio and Optical Emission, Spectral Shapes and Breaks in GRB. A. Loeb: Axion Bursts from Supernovae at Cosmological Distances. R. Mochkovitch, S. Loiseau, M. Hernanz, and J. Isern: Gamma-Ray Bursts from Relativistic Beams in Neutron Star Mergers. B. Paczynski, J. Rhoads, and G. Xu: Radio and Neutrino Emission from Theoretical Gamma-Ray Bursters. The optical and X-ray light curves of Gamma Ray Burst (GRB) afterglows, in the simplest cases, show a power-law decay with an index α∼ Deceleration of the relativistic shock wave generated by the explosion, which results in GRB, can explain the power-law decay of the GRB afterglows.