Extragalactic Background Light from Hierarchical Galaxy Formation: Gamma-ray Attenuation up to the Epoch of Cosmic Reionization and the First Stars

Abstract

We present a new model of the extragalactic background light (EBL) and corresponding gamma-gamma opacity for intergalactic gamma-ray absorption from z = 0 up to z = 10, based on a semi-analytical model of hierarchical galaxy formation that reproduces key observed properties of galaxies at various redshifts. Including the potential contribution from Population III stars and following the cosmic reionization history in a simplified way, the model is also broadly consistent with available data concerning reionization, particularly the Thomson scattering optical depth constraints from WMAP. In comparison with previous EBL studies up to z ~ 3-5, our predicted gamma-gamma opacity is in general agreement for observed gamma-ray energy below 400/(1 + z) GeV, whereas it is a factor of ~ 2 lower above this energy because of a correspondingly lower cosmic star formation rate, even though the observed UV luminosity is well reproduced by virtue of our improved treatment of dust obscuration and direct estimation of star formation rate. The horizon energy at which the gamma-ray opacity is unity does not evolve strongly beyond z ~ 4 and approaches ~ 20 GeV. The contribution of Population III stars is a minor fraction of the EBL at z = 0, and is also difficult to distinguish through gamma-ray absorption in high-z objects, even at the highest levels allowed by the WMAP constraints. Nevertheless, the attenuation due to Population II stars should be observable in high-z gamma-ray sources by telescopes such as Fermi or CTA and provide a valuable probe of the evolving EBL in the rest-frame UV. The detailed results of our model are publicly available in numerical form at the URL http://www.slac.stanford.edu/~yinoue/Download.html.

arXiv comment14 pages, 14 figures, numerical data are available at http://www.slac.stanford.edu/~yinoue/Download.html, accepted for publication in ApJ

References in corpus (179)

• Stellar population synthesis at the resolution of 2003
• The chemical composition of the Sun
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• On the normalisation of the cosmic star formation history
• A luminous quasar at a redshift of z = 7.085
• In the Beginning: The First Sources of Light and the Reionization of the Universe
• Radiative transfer in a clumpy universe: IV. New synthesis models of the cosmic UV/X-ray background
• Semi-Analytic Modelling of Galaxy Formation: The Local Universe
• The extragalactic optical-infrared background radiations, their time evolution and the cosmic photon-photon opacity
• Design Concepts for the Cherenkov Telescope Array
• The Infrared Spectral Energy Distribution of Normal Star-Forming Galaxies: Calibration at Far-Infrared and Submillimeter Wavelengths
• A Recipe for Galaxy Formation Shaun Cole
• Observational constraints on Cosmic Reionization
• The Cosmic Infrared Background: Measurements and Implications
• Radiative Transfer in a Clumpy Universe: III. The Nature of Cosmological Ionizing Sources
• Extragalactic Background Light Inferred from AEGIS Galaxy SED-type Fractions
• The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background: I. Limits and Detections
• Statistics of 207 Lya Emitters at a Redshift Near 7: Constraints on Reionization and Galaxy Formation Models
• A glimpse of the end of the dark ages: the gamma-ray burst of 23 April 2009 at redshift 8.3
• The star formation history of mass-selected galaxies in the COSMOS field
• UV Luminosity Functions at z~4, 5, and 6 from the HUDF and other Deep HST ACS Fields: Evolution and Star Formation History
• The transition from Population III to normal galaxies: Ly-a and HeII 1640 emission and the ionising properties of high redshift starburst galaxies
• On the evolution of star forming galaxies
• Modeling the Extragalactic Background Light from Stars and Dust
• A low level of extragalactic background light as revealed by gamma-rays from blazars
• Variable VHE gamma-ray emission from Markarian 501
• UV Luminosity Functions from 132 z~7 and z~8 Lyman-Break Galaxies in the ultra-deep HUDF09 and wide-area ERS WFC3/IR Observations
• The Spectrum of the Isotropic Diffuse Gamma-Ray Emission Derived From First-Year Fermi Large Area Telescope Data
• Semi-analytic modeling of the EBL and consequences for extragalactic gamma-ray spectra
• The Cosmic Infrared Background Resolved by Spitzer. Contributions of Mid-Infrared Galaxies to the Far-Infrared Background
• The First Galaxies
• GRB 090423 at a redshift of z~8.1
• Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?
• The Formation of the First Low-Mass Stars From Gas With Low Carbon and Oxygen Abundances
• The Galactic Thick Disk Stellar Abundances
• Multi-Wavelength Constraints on the Cosmic Star Formation History from Spectroscopy: the Rest-Frame UV, H-alpha, and Infrared Luminosity Functions at Redshifts 1.9<z<3.4
• The Rest-Frame UV Luminosity Density of Star-Forming Galaxies at Redshifts z>3.5
• Protostellar Feedback Halts the Growth of the First Stars in the Universe
• The Bulk of the Cosmic Infrared Background Resolved by ISOCAM
• MAGIC discovery of VHE Emission from the FSRQ PKS 1222+21
• Revealing the High-Redshift Star Formation Rate with Gamma-Ray Bursts
• Deep Galaxy Counts, Extragalactic Background Light, and the Stellar Baryon Budget
• The observed ionization rate of the intergalactic medium and the ionizing emissivity at z >5: Evidence for a photon starved and extended epoch of reionization
• 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
• Early star-forming galaxies and the reionization of the Universe
• Implications of Cosmological Gamma-Ray Absorption II. Modification of gamma-ray spectra
• Implications for the Cosmic Reionization from the Optical Afterglow Spectrum of the Gamma-Ray Burst 050904 at z = 6.3
• The 24 Micron Source Counts in Deep Spitzer Surveys
• The GALEX-VVDS Measurement of the Evolution of the Far-Ultraviolet Luminosity Density and the Cosmic Star Formation Rate
• The Direct Detection of Lyman-Continuum Emission from Star-forming Galaxies at z~3
• A candidate redshift z ~ 10 galaxy and rapid changes in that population at an age of 500 Myr
• Fragmentation of star-forming clouds enriched with the first dust
• Concordance models of reionization: implications for faint galaxies and escape fraction evolution
• The Star Formation Rate Density and Dust Attenuation Evolution over 12 Gyr with the VVDS Surveys
• Large Area Survey for z=7 Galaxies in SDF and GOODS-N: Implications for Galaxy Formation and Cosmic Reionization
• z~7-10 Galaxies in the HUDF and GOODS fields, and their UV Luminosity Functions
• Number Counts At 3 < lambda < 10 um From the Spitzer Space Telescope
• The Imprint of The Extragalactic Background Light in the Gamma-Ray Spectra of Blazars
• New constraints on the Mid-IR EBL from the HESS discovery of VHE gamma rays from 1ES 0229+200
• The Star Formation Rate in the Reionization Era as Indicated by Gamma-ray Bursts
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• Lower-Luminosity Galaxies could reionize the Universe: Very Steep Faint-End Slopes to the UV Luminosity Functions at z>=5-8 from the HUDF09 WFC3/IR Observations
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• Keeping the Universe ionised: Photo-heating and the clumping factor of the high-redshift intergalactic medium
• The Extragalactic Background Light and the Gamma-ray Opacity of the Universe
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• GeV Gamma-Ray Attenuation and the High-Redshift UV Background
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• The Era of Massive Population III Stars: Cosmological Implications and Self-Termination
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• Discovery of very high energy gamma-ray emission from the low-frequency peaked BL Lacertae object BL Lacertae
• Formation of hard very-high energy spectra of blazars in leptonic models
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• Active Galactic Nuclei under the scrutiny of CTA
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• Hierarchical Formation of Galaxies with Dynamical Response to Supernova-Induced Gas removal
• The HerMES SPIRE submillimeter local luminosity function
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• A Bridge from Optical to Infrared Galaxies: Explaining Local Properties, Predicting Galaxy Counts and the Cosmic Background Radiation
• Numerical Galaxy Catalog -I. A Semi-analytic Model of Galaxy Formation with N-body simulations
• DIRBE Minus 2MASS: Confirming the CIRB in 40 New Regions at 2.2 and 3.5 Microns
• Discovery of Very High-Energy Gamma-Ray Radiation from the BL Lac 1ES 0806+524
• Evidence for strong evolution of the cosmic star formation density at high redshift
• Lyman Alpha Emitters in Hierarchical Galaxy Formation II. UV Continuum Luminosity Function and Equivalent Width Distribution
• Discovery of hard-spectrum γ-ray emission from the BL Lac object 1ES 0414+009
• The escape of ionizing photons from supernova-dominated primordial galaxies
• Reconstructing the γ-ray Photon Optical Depth of the Universe to z~4 from Multiwavelength Galaxy Survey Data
• TeV gamma rays from blazars beyond z=1?
• COBE Observations of the Cosmic Infrared Background
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• On weak redshift dependence of gamma-ray spectra of distant blazars
• Discovery of High-energy and Very High Energy Gamma-ray Emission from the Blazar RBS 0413
• Measurements of the Diffuse Ultraviolet Background and the Terrestrial Airglow with the Space Telescope Imaging Spectrograph
• Constraints on the Extragalactic Background Light from Very High Energy Gamma-Ray Observations of Blazars
• Prospects for Detecting Gamma-Ray Bursts at Very High Energies with the Cherenkov Telescope Array
• Multiwavelength Observations of the Previously Unidentified Blazar RX J0648.7+1516
• Estimating Luminosity Function Constraints from High-Redshift Galaxy Surveys
• Discovery of VHE gamma-ray emission from the BL Lac object B3 2247+381 with the MAGIC telescopes
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• Dust Absorption and the Cosmic UV Flux Density
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• Observations of the Blazar 3C 66A with the MAGIC Telescopes in Stereoscopic Mode
• Upper Limit on the Cosmological Gamma-ray Background
• The Cosmic Near Infrared Background III: Fluctuations, Reionization and the Effects of Minimum Mass and Self-regulation
• Probing High Redshift Radiation Fields with Gamma-Ray Absorption
• "Leading blob" model in a stochastic acceleration scenario: the case of the 2009 flare of Mkn~501
• High Energy Gamma-ray Absorption and Cascade Emission in Nearby Starburst Galaxies
• IACT observations of gamma-ray bursts: prospects for the Cherenkov Telescope Array
• Reanalyses of Voyager Ultraviolet Spectrometer Limits to the EUV and FUV Diffuse Astronomical Flux
• Revisiting the Cosmic Star Formation History: Caution on the Uncertainties in Dust Correction and Star Formation Rate Conversion
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• On the inconsistency between the estimates of cosmic star formation rate and stellar mass density of high redshift galaxies
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• Probing the peak of the star formation rate density with the extragalactic background light
• Searching for the most distant blazars with the Fermi Gamma-ray Space Telescope
• A physical model for the origin of the diffuse cosmic infrared background

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