scholarly journals Impact of radio sources and cosmic infrared background on thermal Sunyaev–Zel’dovich – gravitational lensing cross-correlation

2018 ◽  
Vol 483 (1) ◽  
pp. 342-351 ◽  
Author(s):  
Masato Shirasaki
Keyword(s):  
Gravitational Lensing ◽  
Cross Correlation ◽  
Radio Sources ◽  
Infrared Background ◽  
Cosmic Infrared Background

scholarly journals HerMES: A DEFICIT IN THE SURFACE BRIGHTNESS OF THE COSMIC INFRARED BACKGROUND DUE TO GALAXY CLUSTER GRAVITATIONAL LENSING

2013 ◽  
Vol 769 (2) ◽  
pp. L31 ◽  
Author(s):  
M. Zemcov ◽  
A. Blain ◽  
A. Cooray ◽  
M. Béthermin ◽  
J. Bock ◽  
...  
Keyword(s):  
Gravitational Lensing ◽  
Surface Brightness ◽  
Galaxy Cluster ◽  
Infrared Background ◽  
Cosmic Infrared Background

scholarly journals Simple halo model formalism for the cosmic infrared background and its correlation with the thermal Sunyaev-Zel’dovich effect

2021 ◽  
Vol 645 ◽  
pp. A40
Author(s):  
A. Maniyar ◽  
M. Béthermin ◽  
G. Lagache
Keyword(s):  
Star Formation ◽  
Power Spectrum ◽  
Cross Correlation ◽  
Power Spectra ◽  
Star Formation History ◽  
Maximum Efficiency ◽  
Infrared Background ◽  
Cosmic Infrared Background ◽  
The One ◽  
Model Formalism

Modelling the anisotropies in the cosmic infrared background (CIB) on all the scales is a challenging task because the nature of the galaxy evolution is complex and too many parameters are therefore often required to fit the observational data. We present a new halo model for the anisotropies of the CIB using only four parameters. Our model connects the mass accretion on the dark matter haloes to the star formation rate. Despite its relative simplicity, it is able to fit both the Planck and Herschel CIB power spectra and is consistent with the external constraints for the obscured star formation history derived from infrared deep surveys used as priors for the fit. Using this model, we find that the halo mass with the maximum efficiency for converting the accreted baryons into stars is log10Mmax = 12.94-0.02+0.02 M⊙, consistent with other studies. Accounting for the mass loss through stellar evolution, we find for an intermediate-age galaxy that the star formation efficiency defined as M⋆(z)/Mb(z) is equal to 0.19 and 0.21 at redshift 0.1 and 2, respectively, which agrees well with the values obtained by previous studies. A CIB model is used for the first time to simultaneously fit Planck and Herschel CIB power spectra. The high angular resolution of Herschel allows us to reach very small scales, making it possible to constrain the shot noise and the one-halo term separately, which is difficult to do using the Planck data alone. However, we find that large angular scale Planck and Herschel data are not fully compatible with the small-scale Herschel data (for ℓ >  3000). The CIB is expected to be correlated with the thermal Sunyaev-Zel’dovich (tSZ) signal of galaxy clusters. Using this halo model for the CIB and a halo model for the tSZ with a single parameter, we also provide a consistent framework for calculating the CIB × tSZ cross correlation, which requires no additional parameter. To a certain extent, the CIB at high frequencies traces galaxies at low redshifts that reside in the clusters contributing to the tSZ, giving rise to the one-halo term of this correlation, while the two-halo term comes from the overlap in the redshift distribution of the tSZ clusters and CIB galaxies. The CIB × tSZ correlation is thus found to be higher when inferred with a combination of two widely spaced frequency channels (e.g. 143 × 857 GHz). We also find that even at ℓ ∼ 2000, the two-halo term of this correlation is still comparable to the one-halo term and has to be accounted for in the total cross-correlation. The CIB, tSZ, and CIB × tSZ act as foregrounds when the kinematic SZ (kSZ) power spectrum is measured from the cosmic microwave background power spectrum and need to be removed. Because of its simplistic nature and the low number of parameters, the halo model formalism presented here for these foregrounds is quite useful for such an analysis to measure the kSZ power spectrum accurately.

scholarly journals THE ATACAMA COSMOLOGY TELESCOPE: LENSING OF CMB TEMPERATURE AND POLARIZATION DERIVED FROM COSMIC INFRARED BACKGROUND CROSS-CORRELATION

2015 ◽  
Vol 808 (1) ◽  
pp. 7 ◽  
Author(s):  
Alexander van Engelen ◽  
Blake D. Sherwin ◽  
Neelima Sehgal ◽  
Graeme E. Addison ◽  
Rupert Allison ◽  
...  
Keyword(s):  
Cross Correlation ◽  
Atacama Cosmology Telescope ◽  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Cmb Temperature

scholarly journals Co-evolution of black hole growth and star formation from a cross-correlation analysis between quasars and the cosmic infrared background

2015 ◽  
Vol 449 (4) ◽  
pp. 4476-4493 ◽  
Author(s):  
Lingyu Wang ◽  
Marco Viero ◽  
Nicholas P. Ross ◽  
Viktoria Asboth ◽  
Matthieu Béthermin ◽  
...  
Keyword(s):  
Black Hole ◽  
Star Formation ◽  
Correlation Analysis ◽  
Cross Correlation ◽  
Cross Correlation Analysis ◽  
Black Hole Growth ◽  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Hole Growth

scholarly journals Relaxation leptogenesis, isocurvature perturbations, and the cosmic infrared background

2017 ◽  
Vol 95 (10) ◽  
Author(s):  
Masahiro Kawasaki ◽  
Alexander Kusenko ◽  
Lauren Pearce ◽  
Louis Yang
Keyword(s):  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Isocurvature Perturbations

scholarly journals Anisotropies of the infrared background and primordial galaxies

2006 ◽  
Vol 2 (14) ◽  
pp. 266-266
Author(s):  
Asantha R. Cooray
Keyword(s):  
Galaxy Formation ◽  
Near Infrared ◽  
Imaging Data ◽  
Near Ir ◽  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Galactic Background

AbstractWe discuss anisotropies in the near-IR background between 1 to a few microns. This background is expected to contain a signature of primordial galaxies. We have measured fluctuations of resolved galaxies with Spitzer imaging data and we are developing a rocket-borne instrument (the Cosmic Infrared Background ExpeRiment, or CIBER) to search for signatures of primordial galaxy formation in the cosmic near-infrared extra-galactic background.

scholarly journals CROSS-CORRELATION OF NEAR- AND FAR-INFRARED BACKGROUND ANISOTROPIES AS TRACED BYSPITZERANDHERSCHEL

2015 ◽  
Vol 811 (2) ◽  
pp. 125 ◽  
Author(s):  
Cameron Thacker ◽  
Yan Gong ◽  
Asantha Cooray ◽  
Francesco De Bernardis ◽  
Joseph Smidt ◽  
...  
Keyword(s):  
Cross Correlation ◽  
Far Infrared ◽  
Infrared Background
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