Spectral energy distribution and generalized Wien's law for photons and cosmic string loops

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2 Citazioni (Scopus)

Abstract

Physical objects with energy $u_w(l) \sim l^{-3w}$ with $l$ characteristic length and $w$ a dimensionless constant, lead to an equation of state $p=w\rho$, with $p$ the pressure and $\rho$ the energy density. Special entities with thisbproperty are, for instance, photons ($u = hc/l$, with $l$ the wavelength) with $w = 1/3$, and some models of cosmic string loops ($u =(c^4/aG)l$, with $l$ the length of the loop and $a$ a numerical constant), with $w = -1/3$. Here, we discuss some features of the spectral energy distribution of these systems and the corresponding generalization of Wien's law, which in terms of $l$ has the form $Tl_{mp}^{3w}=constant$, being $l_{mp}$ the most probable size of the mentioned entities.
Lingua originaleEnglish
pagine (da-a)075002-
Numero di pagine7
RivistaPhysica Scripta
Volume89
Stato di pubblicazionePublished - 2014

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Cosmic Strings
Spectral Distribution
Energy Distribution
spectral energy distribution
Photon
strings
photons
Probable
Energy Density
Equation of State
Dimensionless
equations of state
flux density
Wavelength
Energy
wavelengths
energy
Model

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Mathematical Physics

Cita questo

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title = "Spectral energy distribution and generalized Wien's law for photons and cosmic string loops",
abstract = "Physical objects with energy $u_w(l) \sim l^{-3w}$ with $l$ characteristic length and $w$ a dimensionless constant, lead to an equation of state $p=w\rho$, with $p$ the pressure and $\rho$ the energy density. Special entities with thisbproperty are, for instance, photons ($u = hc/l$, with $l$ the wavelength) with $w = 1/3$, and some models of cosmic string loops ($u =(c^4/aG)l$, with $l$ the length of the loop and $a$ a numerical constant), with $w = -1/3$. Here, we discuss some features of the spectral energy distribution of these systems and the corresponding generalization of Wien's law, which in terms of $l$ has the form $Tl_{mp}^{3w}=constant$, being $l_{mp}$ the most probable size of the mentioned entities.",
author = "Mongiovi', {Maria Stella} and Michele Sciacca and Jou and Sciacca",
year = "2014",
language = "English",
volume = "89",
pages = "075002--",
journal = "Physica Scripta",
issn = "0031-8949",
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TY - JOUR

T1 - Spectral energy distribution and generalized Wien's law for photons and cosmic string loops

AU - Mongiovi', Maria Stella

AU - Sciacca, Michele

AU - Jou, null

AU - Sciacca, null

PY - 2014

Y1 - 2014

N2 - Physical objects with energy $u_w(l) \sim l^{-3w}$ with $l$ characteristic length and $w$ a dimensionless constant, lead to an equation of state $p=w\rho$, with $p$ the pressure and $\rho$ the energy density. Special entities with thisbproperty are, for instance, photons ($u = hc/l$, with $l$ the wavelength) with $w = 1/3$, and some models of cosmic string loops ($u =(c^4/aG)l$, with $l$ the length of the loop and $a$ a numerical constant), with $w = -1/3$. Here, we discuss some features of the spectral energy distribution of these systems and the corresponding generalization of Wien's law, which in terms of $l$ has the form $Tl_{mp}^{3w}=constant$, being $l_{mp}$ the most probable size of the mentioned entities.

AB - Physical objects with energy $u_w(l) \sim l^{-3w}$ with $l$ characteristic length and $w$ a dimensionless constant, lead to an equation of state $p=w\rho$, with $p$ the pressure and $\rho$ the energy density. Special entities with thisbproperty are, for instance, photons ($u = hc/l$, with $l$ the wavelength) with $w = 1/3$, and some models of cosmic string loops ($u =(c^4/aG)l$, with $l$ the length of the loop and $a$ a numerical constant), with $w = -1/3$. Here, we discuss some features of the spectral energy distribution of these systems and the corresponding generalization of Wien's law, which in terms of $l$ has the form $Tl_{mp}^{3w}=constant$, being $l_{mp}$ the most probable size of the mentioned entities.

UR - http://hdl.handle.net/10447/99818

M3 - Article

VL - 89

SP - 075002-

JO - Physica Scripta

JF - Physica Scripta

SN - 0031-8949

ER -