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This paper provides a detailed description of the data reduction and analysis procedures that have been employed in our previous studies of spatial fluctuation of the cosmic infrared background (CIB) using deep Spitzer IRAC observations.…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 R. G. Arendt , A. Kashlinsky , S. H. Moseley , J. Mather

The TeV and X-ray data obtained by the imaging Cherenkov telescope CAT and X-ray satellite BeppoSAX during the remarkable flare of Mkn 501 in April 16, 1997 are used to constrain the flux of the Cosmic Infrared Background (CIB) using…

Astrophysics · Physics 2007-05-23 J. Guy , C. Renault , F. A. Aharonian , M. Rivoal , J. -P. Tavernet

We report the detection and measurement of the absolute brightness and spatial fluctuations of the cosmic infrared background (CIB) with the AKARI satellite. We have carried out observations at 65, 90, 140 and 160 um as a cosmological…

While the upcoming telescopes will reveal correspondingly fainter, more distant galaxies, a question will persist: what more is there that these telescopes cannot see? One answer is the source-subtracted Cosmic Infrared Background (CIB).…

Galaxies are often used as tracers of the large scale structure (LSS) to measure the Integrated Sachs-Wolfe effect (ISW) by cross-correlating the galaxy survey maps with the Cosmic Microwave Background (CMB) map. We use the Cosmic Infrared…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-03 A. S. Maniyar , G. Lagache , M. Béthermin , S. Ilîc

Gravitational lensing deflects the paths of cosmic infrared background (CIB) photons, leaving a measurable imprint on CIB maps. The resulting statistical anisotropy can be used to reconstruct the matter distribution out to the redshifts of…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-04 Emmanuel Schaan , Simone Ferraro , David N. Spergel

We explore the use of the cosmic infrared background as a tracer of the LSS for cross-correlating with the CMB and exploit the ISW. We use the improved linear CIB model of Maniyar et al (2018) and derive the theoretical CIBxISW…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-03 A. S. Maniyar , G. Lagache , M. Béthermin , S. Ilić

We use Spitzer/IRAC deep exposure data covering two significantly larger than before sky areas to construct maps suitable for evaluating source-subtracted fluctuations in the cosmic infrared background (CIB). The maps are constructed using…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-30 A. Kashlinsky , Richard G. Arendt , M. L. N. Ashby , J. Kruk , N. Odegard

The cosmic infrared background (CIB) is the accumulated infrared (IR) radiation mainly from interstellar dust heated up by early stars. In this work, we measure the cross-correlation between galaxies from the unWISE catalog and the CIB maps…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-07 Ziang Yan , Abhishek S. Maniyar , Ludovic van Waerbeke

The study of the Cosmic Near-Infrared Background (CIB) light after subtraction of resolved sources can push the limits of current observations and infer the level of galaxy and black hole activity in the early universe. However,…

Cosmology and Nongalactic Astrophysics · Physics 2015-11-11 Kári Helgason , Massimo Ricotti , Alexander Kashlinsky , Volker Bromm

We compare data from the Diffuse InfraRed Background Experiment (DIRBE) on the Cosmic Background Explorer (COBE) satellite to the the Wainscoat et al. (1992) model of the infrared sky. The model is first compared with broadband K (2.2…

Astrophysics · Physics 2009-10-31 E. L. Wright , E. D. Reese

We estimate the level of confusion to Cosmic Microwave Background anisotropy measurements caused by extragalactic infrared sources. CMB anisotropy observations at high resolution and high frequencies are especially sensitive to this…

Astrophysics · Physics 2009-10-28 Eric Gawiser , George F. Smoot

A spatial clustering signal has been established in Spitzer/IRAC measurements of the unresolved Cosmic near-Infrared Background (CIB) out to large angular scales, ~1 deg. This CIB signal, while significantly exceeding the contribution from…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Kari Helgason , Nico Cappelluti , Guenther Hasinger , Alexander Kashlinsky , Massimo Ricotti

The discovery of the Cosmic Infrared Background (CIB) in 1996, together with recent cosmological surveys from the mid-infrared to the millimeter have revolutionized our view of star formation at high redshifts. It has become clear, in the…

Astrophysics · Physics 2009-11-13 Guilaine Lagache , Jean-Loup Puget , Herve Dole

The first measurement of the diffuse background spectrum at 0.8-1.7 $\mu \rm{m}$ from the CIBER experiment has revealed a significant excess of the cosmic infrared background (CIB) radiation compared to the theoretically expected spectrum.…

High Energy Physics - Phenomenology · Physics 2019-01-04 Oleg E. Kalashev , Alexander Kusenko , Edoardo Vitagliano

Conventional interpretation of the observed cosmic microwave background (CMB) dipole is that all of it is produced by local peculiar motions. Alternative explanations requiring part of the dipole to be primordial have received support from…

Cosmology and Nongalactic Astrophysics · Physics 2011-06-03 D. J. Fixsen , A. Kashlinsky

Based on a power spectrum analysis of the IRAS ISSA maps, we present the first detection of the Cosmic far-Infrared Background (CIB) fluctuations at 60 and 100 microns. The power spectrum of 12 low cirrus emission regions is characterized…

Astrophysics · Physics 2009-11-07 M. -A. Miville-Deschenes , G. Lagache , J. -L. Puget

We investigate the cross-correlation between the cosmic infrared and microwave backgrounds (CIB & CMB) anisotropies through the integrated Sachs-Wolfe effect. We first describe the CIB anisotropies using a linearly biased power spectrum,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Stéphane Ilic

The power spectrum of cosmic infrared background (CIB) anisotropies is sensitive to the connection between star formation and dark matter halos over the entire cosmic star formation history. Here we develop a model that associates…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Cien Shang , Zoltán Haiman , Lloyd Knox , S. Peng Oh

Cosmic infrared background fluctuations may contain measurable contribution from objects inaccessible to current telescopic studies, such as the first stars and other luminous objects in the first Gyr of the Universe's evolution. In an…

Astrophysics · Physics 2009-01-19 A. Kashlinsky , R. G. Arendt , J. Mather , S. H. Moseley