Tachyonic γ -ray wideband of an ultra-relativistic electron plasma: Spectral fitting with Fermi power-law densities

Tomaschitz, Roman

doi:10.1016/j.physa.2008.02.024

Cited by 17 publications

(14 citation statements)

References 28 publications

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“…Conversion into erg/s units means to multiply by 1.602 × 10 −9 .n is the tachyonic flux amplitude in units of keV cm −2 s −1 , and 4πd 2 [cm] ≈ 2.33 × 10 57 z 2 , cf. after (13). The redshift estimate of GRB 990123 in fig.…”

Section: Grbmentioning

confidence: 99%

“…We use U [keV] = n e m[keV]u α (β) and P T+L α,β in (16) with 4πd 2n = n e α t m 2 t / , cf. (13), to estimate the asymptotic fine-structure constant from the burst duration,…”

Section: Grbmentioning

confidence: 99%

“…The spectral functions of the electron plasma are calculated by averaging the tachyonic radiation densities with a thermal or nonthermal electronic power law distribution [13],…”

mentioning

confidence: 99%

“…mt is the mass parameter of the superluminal modes, and σ the scaling exponent of the frequency-dependent tachyonic fine-structure constant (3). The scale factorn determining the amplitude of the superluminal flux and the electron number is defined in (13). kT is the temperature of the thermal (α = −2) or nonthermal plasma components.…”

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confidence: 99%

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Tachyonic spectral fits of γ-ray bursts

Tomaschitz

2010

Europhys. Lett.

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Evidence for superluminal radiation in γ-ray burst (GRB) spectra is pointed out. The spectral maps of GRB 941017, GRB 990123, and GRB 990104 are analyzed. The superluminal radiation modes are generated by the shock-heated ultra-relativistic source plasma. The tachyonic radiation field is a real Proca field with negative mass-square, coupled to the electron gas by a frequency-dependent fine-structure constant. At GeV energies, the coupling constant approaches a limit value, so that the radiation field is minimally coupled to the electron current. In the soft γ-ray band, the interaction with the GRB plasma becomes nonlocal, due to the varying coupling strength depending on the energy of the radiated modes. The spectral fitting with tachyonic flux densities generated by nonlocal plasma currents is explained. Estimates of the tachyonic luminosity, temperature, and internal energy of the electronic source plasma are obtained from the spectral fits.

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Section: Grbmentioning

confidence: 99%

“…We use U [keV] = n e m[keV]u α (β) and P T+L α,β in (16) with 4πd 2n = n e α t m 2 t / , cf. (13), to estimate the asymptotic fine-structure constant from the burst duration,…”

Section: Grbmentioning

confidence: 99%

“…The spectral functions of the electron plasma are calculated by averaging the tachyonic radiation densities with a thermal or nonthermal electronic power law distribution [13],…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Tachyonic spectral fits of γ-ray bursts

Tomaschitz

2010

Europhys. Lett.

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“…The transversal (T, dot-dashed line) and longitudinal (L, double-dot-dashed line) flux densities dN T,L /dE add up to the total unpolarized flux T + L. The exponential decay of the cascades ρ1,2 sets in at about Ecut ≈ (mt/m)kT , implying cutoffs at 180 GeV for the ρ1 cascade and 29 GeV for ρ2. The EGRET points define a spectral plateau in the MeV to GeV range typical for tachyonic cascade spectra [15,16,21]. The least-squares fit is done with the unpolarized tachyon flux T + L, and subsequently split into transversal and longitudinal components.…”

Section: Polarization Of Superluminal Dipole Radiationmentioning

confidence: 99%

Polarization of superluminal γ-rays: Tachyonic flare spectra of quasar 3C 279

Tomaschitz

2008

Europhys. Lett.

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The polarization of superluminal radiation is studied, based on the tachyonic Maxwell equations for Proca fields with negative mass-square. The cross-sections for the scattering of transversal and longitudinal tachyons by electrons are derived. The polarized superluminal flux vectors of dipole currents are calculated, and the power transversally and longitudinally radiated is obtained. Specifically, the polarization of the γ-ray spectrum of quasar 3C 279 is studied. Two flare spectra of this blazar at redshift 0.538 are fitted with tachyonic cascades generated by the thermal electron plasma in the active galactic nucleus. The transversal and longitudinal radiation components and the thermodynamic parameters of the ultra-relativistic plasma are extracted from the spectral map. An extended spectral plateau typical for tachyonic γ-ray spectra emerges in the MeV and low GeV range. The curvature of the adjacent GeV spectral slope is shown to be intrinsic, caused by the Boltzmann factor of the electron plasma rather than by intergalactic absorption.

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Superluminal spectral densities of ultra-relativistic electrons in intense electromagnetic wave fields

Tomaschitz

2010

Appl. Phys. B

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Tachyonic γ -ray wideband of an ultra-relativistic electron plasma: Spectral fitting with Fermi power-law densities

Cited by 17 publications

References 28 publications

Tachyonic spectral fits of γ-ray bursts

Tachyonic spectral fits of γ-ray bursts

Polarization of superluminal γ-rays: Tachyonic flare spectra of quasar 3C 279

Superluminal spectral densities of ultra-relativistic electrons in intense electromagnetic wave fields

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