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Title: A THEORY OF PHOTOSPHERIC EMISSION FROM RELATIVISTIC OUTFLOWS

We derive the optical depth and photospheric radius of relativistic outflows using a model of a relativistic wind with a finite duration. We also discuss the role of radiative diffusion in such an outflow. We numerically solve the radiative transfer equation and obtain light curves and observed spectra of the photospheric emission. The spectra we obtain are nonthermal and in some cases have Band shapes.
Authors:
; ;  [1]
  1. ICRANet, 65122, p.le della Repubblica, 10, I-65122 Pescara (Italy)
Publication Date:
OSTI Identifier:
22140102
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 772; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; DIFFUSION; EMISSION; EQUATIONS; OPACITY; PLASMA; RADIANT HEAT TRANSFER; RELATIVISTIC RANGE; SIMULATION; SPECTRA; VISIBLE RADIATION; X RADIATION