Large angular scale fluctuations of near infrared extragalactic background light based on the IRTS observations

Abstract

We measure the spatial fluctuations of the Near-Infrared Extragalactic Background Light (NIREBL) from 2${}^{\circ }$ to 20${}^{\circ }$ in angular scale at the 1.6 and 2.2 $\mu$m using data obtained with Near-Infrared Spectrometer (NIRS) on board the Infrared Telescope in Space (IRTS). The brightness of the NIREBL is estimated by subtracting foreground components such as zodiacal light, diffuse Galactic light, and integrated star light from the observed sky. The foreground components are estimated using well-established models and archive data. The NIREBL fluctuations for the 1.6 and 2.2 $\mu$m connect well toward the sub-degree scale measurements from previous studies. Overall, the fluctuations show a wide bump with a center at around 1${}^{\circ }$ and the power decreases toward larger angular scales with nearly a single power-law spectrum (i.e. \textit{F($\sqrt{l(l+1)C_l/2\pi }$)} $\sim$ ${\theta }^{-1}$) indicating that the large scale power is dominated by the random spatial distribution of the sources. After examining several known sources, contributors such as normal galaxies, high redshift objects, intra-halo light, and far-IR cosmic background, we conclude that the excess fluctuation at around the 1${}^{\circ }$ scale cannot be explained by any of them.

References in corpus (50)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• Spectral Irradiance Calibration in the Infrared. XIV: the Absolute Calibration of 2MASS
• MASTER of the CMB Anisotropy Power Spectrum: A Fast Method for Statistical Analysis of Large and Complex CMB Data Sets
• The Spectrum of the Extragalactic Far Infrared Background from the COBE Firas Observations
• Star counts in the Galaxy. Simulating from very deep to very shallow photometric surveys with the TRILEGAL code
• The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background: II. Model of the Interplanetary Dust Cloud
• Determination of Inflationary Observables by Cosmic Microwave Background Anisotropy Experiments
• Estimating the Power Spectrum of the Cosmic Microwave Background
• Representations of celestial coordinates in FITS
• How to measure CMB power spectra without losing information
• Fast estimation of polarization power spectra using correlation functions
• Planck Early Results XVIII: The power spectrum of cosmic infrared background anisotropies
• Tracing the first stars with cosmic infrared background fluctuations
• IRTS observation of the near-infrared extragalactic background light
• The Contribution of the First Stars to the Cosmic Infrared Background
• Infrared Emission from the Radio Supernebula in NGC 5253: A Proto-Globular Cluster?
• The Imprint of the Cosmic Dark Ages on the Near Infrared Background
• The Cosmic Infrared Background at 1.25 microns and 2.2 microns using DIRBE and 2MASS: a contribution not due to galaxies ?
• On the Origin of Near-Infrared Extragalactic Background Light Anisotropy
• New measurements of the cosmic infrared background fluctuations in deep Spitzer/IRAC survey data and their cosmological implications
• Detection of the Cosmic Infrared Background at 2.2 and 3.5 microns Using DIRBE Observations
• New Spectral Evidence of an Unaccounted Component of the Near-infrared Extragalactic Background Light from the CIBER
• Cosmic Optical Background: the View from Pioneer 10/11
• The Spectrum of the Diffuse Galactic Light I: The Milky Way in Scattered Light
• AKARI observation of the fluctuation of the near-infrared background
• The Near-IR Background Intensity and Anisotropies During The Epoch of Reionization
• The Resolved Near-Infrared Extragalactic Background
• The Resolved NIR Extragalactic Background
• Measurement of the Cosmic Optical Background using the Long Range Reconnaissance Imager on New Horizons
• DIRBE Minus 2MASS: Confirming the CIRB in 40 New Regions at 2.2 and 3.5 Microns
• Ultraviolet Luminosity Density of the Universe During the Epoch of Reionization
• Observations of the Near-Infrared Spectrum of the Zodiacal Light with CIBER
• Extragalactic background Light: a measurement at 400 nm using dark cloud shadow II. Spectroscopic separation of dark cloud's light, and results
• The contribution of high redshift galaxies to the Near-Infrared Background
• Evidence for a Z < 8 Origin of the Source Subtracted Near Infrared Background
• Low-Resolution Spectrum of the Extragalactic Background Light with AKARI InfraRed Camera
• Ultraviolet to optical diffuse sky emission as seen by the Hubble Space Telescope Faint Object Spectrograph
• Derivation of a large isotropic diffuse sky emission component at 1.25 and 2.2um from the COBE/DIRBE data
• Measurements of the mean diffuse galactic light spectrum in the 0.95 μm to 1.65 μm band from CIBER
• Measurements of Diffuse Sky Emission Components in High Galactic Latitudes at 3.5 and 4.9 um Using DIRBE and WISE Data
• Low-Resolution Spectrum of the Diffuse Galactic Light and 3.3 um PAH emission with AKARI InfraRed Camera
• Is There an Imprint of Primordial Stars in the Tev Gamma-Ray Spectrum of Blazars?
• Brightness and Fluctuation of the Mid-Infrared Sky from AKARI Observations towards the North Ecliptic Pole
• AKARI Observation of the Sub-degree Scale Fluctuation of the Near-infrared Background
• POKER: Estimating the power spectrum of diffuse emission with complex masks and at high angular resolution
• Extragalactic Background Light: a measurement at 400 nm using dark cloud shadow I. Low surface brightness spectrophotometry in the area of Lynds 1642
• MIRIS observation of near-infrared diffuse Galactic light
• Cross-Correlation of Near and Far-Infrared Background Anisotropies as Traced by Spitzer and Herschel
• The Contribution of Faint Galaxy Wings to Source-subtracted Near-infrared Background Fluctuations

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• Feeding plankton to whales: high-redshift supermassive black holes from tiny black hole explosions
• Near-infrared Extragalactic Background Light Fluctuations on Nonlinear Scales
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