Search Results - "Scully, S. T"
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Intergalactic Photon Spectra from the Far-IR to the UV Lyman Limit for 0 < z < 6 and the Optical Depth of the Universe to High-Energy Gamma Rays
Published in The Astrophysical journal (10-09-2006)“…We calculate the intergalactic photon density as a function of both energy and redshift for 0 < z < 6 for photon energies from.003 eV to the Lyman limit cutoff…”
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A Simple Analytic Treatment of the Intergalactic Absorption Effect in Blazar Gamma-Ray Spectra
Published in The Astrophysical journal (20-11-2006)“…We derive a new and user-friendly simple analytic approximation for determining the effect of intergalactic absorption on the g-ray spectra of TeV blazars in…”
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Lorentz invariance violation and the spectrum and source power of ultrahigh energy cosmic rays
Published in Astroparticle physics (01-03-2005)“…Owing to their isotropy, it is generally believed that ultrahigh energy cosmic rays (UHECRs) are extragalactic in origin. It is then expected that interactions…”
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Lorentz invariance violation and the observed spectrum of ultrahigh energy cosmic rays
Published in Astroparticle physics (01-04-2009)“…There has been much interest in possible violations of Lorentz invariance, particularly motivated by quantum gravity theories. It has been suggested that a…”
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On the spectrum of ultrahigh energy cosmic rays and the γ-ray burst origin hypothesis
Published in Astroparticle physics (2002)“…It has been suggested that cosmological γ-ray bursts (GRBs) can produce the observed flux of cosmic rays at the highest energies. However, recent studies of…”
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Lorentz Invariance Violation and the Observed Spectrum of Ultrahigh Energy Cosmic Rays
Published 25-02-2009“…Astropart.Phys.31:220-225,2009 There has been much interest in possible violations of Lorentz invariance, particularly motivated by quantum gravity theories…”
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A Harmonised Approach to Curating Research-Ready Datasets for Asthma, Chronic Obstructive Pulmonary Disease (COPD) and Interstitial Lung Disease (ILD) in England, Wales and Scotland Using Clinical Practice Research Datalink (CPRD), Secure Anonymised Information Linkage (SAIL) Databank and DataLoch
Published in Clinical epidemiology (01-01-2024)“…Electronic healthcare records (EHRs) are an important resource for health research that can be used to improve patient outcomes in chronic respiratory…”
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The Spectrum of 1ES0229 + 200 and the Cosmic Infrared Background
Published 09-11-2007“…Astronomy and Astrophysics 478, L1 (2008) We examine the effect of gamma-ray absorption by the extragalactic infrared radiation on intrinsic spectra predicted…”
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Light-Element Evolution and Cosmic-Ray Energetics
Published in The Astrophysical journal (10-05-2000)Get full text
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A Simple Analytic Treatment of the Intergalactic Absorption Effect in Blazar Gamma-ray Spectra
Published 04-08-2006“…Astrophys.J.652:L9-L11,2006 We derive a new and user friendly simple analytic approximation for determining the effect of intergalactic absorption in the…”
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Lorentz Invariance Violation and the Spectrum and Source Power of Ultrahigh Energy Cosmic Rays
Published 17-12-2004“…Astropart.Phys. 23 (2005) 203-209 Owing to their isotropy, it is generally believed that ultrahigh energy cosmic rays (UHECRs) are extragalactic in origin. It…”
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Corrected Table for the Parametric Coefficients for the Optical Depth of the Universe to Gamma-rays at Various Redshifts
Published 01-12-2006“…Astrophys.J.658:1392,2007 Table 1 in our paper, ApJ 648, 774 (2006) entitled "Intergalactic Photon Spectra from the Far IR to the UV Lyman Limit for 0 < z < 6…”
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Intergalactic Photon Spectra from the Far IR to the UV Lyman Limit for $0 < z < 6$ and the Optical Depth of the Universe to High Energy Gamma-Rays
Published 14-10-2005“…Astrophys.J.648:774-783,2006 We calculate the intergalactic photon density as a function of both energy and redshift for 0 < z < 6 for photon energies from…”
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On the spectrum of Ultrahigh Energy Cosmic Rays and the Gamma Ray Burst Origin Hypothesis
Published 08-06-2000“…Astropart.Phys. 16 (2002) 271-276 It has been suggested that cosmological gamma-ray bursts (GRBs) can produce the observed flux of cosmic rays at the highest…”
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A Bayesian Estimate of the Primordial Helium Abundance
Published in The Astrophysical journal (10-11-1997)Get full text
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The Deuterium Abundance and Nucleocosmochronology
Published in The Astrophysical journal (10-06-1995)Get full text
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Light Element Evolution and Cosmic Ray Energetics
Published 01-09-1999“…Using cosmic-ray energetics as a discriminator, we investigate evolutionary models of LiBeB. We employ a Monte Carlo code which incorporates the delayed mixing…”
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Error estimation for the MAP experiment
Published 26-12-2000“…We report here the first full sky component separation and CMB power spectrum estimation using a Wiener filtering technique on simulated data from the upcoming…”
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