Galaxy Evolution, Deep Galaxy Counts and the Near-IR Cosmic Infrared Background

Abstract

Accurate synthetic models of stellar populations are constructed and used in evolutionary models of stellar populations in forming galaxies. Following their formation, the late type galaxies are assumed to follow the Schmidt law for star formation, while early type galaxies are normalized to the present-day fundamental plane relations assumed to mimic the metallicity variations along their luminosity sequence. We then compute predictions of these models for the observational data at early epochs for various cosmological parameters $\Omega ,{\Omega }_{\Lambda }$ and $H_0$. We find good match to the metallicity data from the damped $L_{\alpha }$ systems and the evolution of the luminosity density out to $z\simeq 1$. Likewise, our models provide good fits for low values of $\Omega$ to the deep number counts of galaxies in all bands where data is available; this is done without assuming existence of extra populations of galaxies at high $z$. Our models also match the data on the redshift distribution of galaxy counts in $B$ and $K$ bands. We compute the predicted mean levels and angular distribution of the cosmic infrared background produced from the early evolution of galaxies. The predicted fluxes and fluctuations are still below the current observational limits, but not by a large factor. Finally, we find that the recent detection of the diffuse extragalactic light in the visible bands requires for our models high redshift of galaxy formation, $z_f\ge$(3-4); otherwise the produced flux of the extragalactic light at optical bands exceeds the current observational limits.

Accepted to ApJ

References in corpus (15)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Unveiling Dust-enshrouded Star Formation in the Early Universe: a Sub-mm Survey of the Hubble Deep Field
• The Evolution of the Global Star Formation History as Measured from the Hubble Deep Field
• LBDS 53W091: An Old red Galaxy at z=1.552
• The Density of Lyman-alpha Emitters at Very High Redshift
• The Metallicity of High Redshift Galaxies: The Abundance of Zinc in 34 Damped Lyman Alpha Systems from z = 0.7 to 3.4
• Faint Blue Galaxies
• A Pair of Lensed Galaxies at z=4.92 in the Field of CL1358+62
• Younger and brighter - New distances to globular clusters based on Hipparcos parallax measurements of local subdwarfs
• A wide-field K-band survey. The luminosity function of galaxies
• A Galaxy at z=5.34
• An Empirically Based Calculation of the Extragalactic Infrared Background
• Evolution of the Luminosity Density in the Universe: Implications for the Nonzero Cosmological Constant
• Reconstructing the spectrum of the pregalactic density field from astronomical data
• A Numerical Renormalization Solution for Self-Similar Cosmic Structure Formation

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• The Cosmic Infrared Background: Measurements and Implications
• Dark Matter and Background Light
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• Probing Early Structure Formation with Far-Infrared Background Correlations
• Detecting Population III stars through observations of near-IR cosmic infrared background anisotropies
• Reconstructing the Near-IR Background Fluctuations from known Galaxy Populations using Multiband Measurements of Luminosity Functions
• Clustering of the Diffuse Infrared Light from the COBE DIRBE maps. III. Power spectrum analysis and excess isotropic component of fluctuations
• A Bridge from Optical to Infrared Galaxies: Explaining Local Properties, Predicting Galaxy Counts and the Cosmic Background Radiation
• Comments on ``The first detections of the Extragalactic Background Light at 3000, 5500, and 8000 A'' by Bernstein, Freedman and Madore
• A Semi-Empirical Model of the Infra-Red Universe
• Bulk flows from galaxy luminosities: application to 2MASS redshift survey and forecast for next-generation datasets
• Correlations in the Far Infrared Background
• Detection of small scale fluctuations in the near-IR cosmic infrared background from long exposure 2MASS fields
• The cosmic evolution of the galaxy luminosity density
• Analysis of the diffuse near-IR emission from 2MASS deep integration data: foregrounds vs the cosmic infrared background
• Galaxy morphology and evolution from SWAN Adaptive Optics imaging