Low-Resolution Spectrum of the Extragalactic Background Light with AKARI InfraRed Camera

Abstract

The Extragalactic Background Light (EBL) as an integrated light from outside of our Galaxy includes information of the early universe and the Dark Ages. We analyzed the spectral data of the astrophysical diffuse emission obtained with the low-resolution spectroscopy mode on the AKARI Infra-Red Camera (IRC) in 1.8-5.3 um wavelength region. Although the previous EBL observation in this wavelength region is restricted to the observations by DIRBE and IRTS, this study adds a new independent result with negligible contamination of Galactic stars owing to higher sensitivity for point sources. Other two major foreground components, the zodiacal light (ZL) and the diffuse Galactic light (DGL), were subtracted by taking correlations with ZL brightness estimated by the DIRBE ZL model and with the 100 um dust thermal emission, respectively. The isotropic emission was obtained as EBL, which shows significant excess over integrated light of galaxies at <4 um. The obtained EBL is consistent with the previous measurements by IRTS and DIRBE.

8 pages, 5 figures, accepted by Publications of the Astronomical Society of Japan (PASJ)

References in corpus (13)

• New limits on the density of the extragalactic background light in the optical to the far-infrared from the spectra of all known TeV blazars
• Hints of the existence of Axion-Like-Particles from the gamma-ray spectra of cosmological sources
• Discovery of VHE gamma-rays from the distant BL Lac 1ES 0347-121
• The Firm Redshift Lower Limit of the Most Distant TeV-Detected Blazar PKS 1424+240
• The Resolved NIR Extragalactic Background
• The Resolved Near-Infrared Extragalactic Background
• Constraints on the Cosmic Near Infrared Background Excess from NICMOS Deep Field Observations
• DIRBE Minus 2MASS: Confirming the CIRB in 40 New Regions at 2.2 and 3.5 Microns
• Evidence for a Z < 8 Origin of the Source Subtracted Near Infrared Background
• First stars and the extragalactic background light: How recent gamma-ray observations constrain the early universe
• Low-Resolution Spectrum of the Diffuse Galactic Light and 3.3 um PAH emission with AKARI InfraRed Camera
• The Cosmic Infrared Background Experiment (CIBER): the Narrow Band Spectrometer
• Low-Resolution Spectrum of the Zodiacal Light with AKARI InfraRed Camera

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