scholarly journals The SCUBA-2 Cosmology Legacy Survey: blank-field number counts of 450-μm-selected galaxies and their contribution to the cosmic infrared background

2013 ◽  
Vol 432 (1) ◽  
pp. 53-61 ◽  
Author(s):  
J. E. Geach ◽  
E. L. Chapin ◽  
K. E. K. Coppin ◽  
J. S. Dunlop ◽  
M. Halpern ◽  
...  
Keyword(s):  
Blank Field ◽  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Number Counts

scholarly journals Have we seen all the galaxies that comprise the cosmic infrared background at 250 μm ≤λ ≤ 500 μm?

2019 ◽  
Author(s):  
S Duivenvoorden ◽  
S Oliver ◽  
M Béthermin ◽  
D L Clements ◽  
G De Zotti ◽  
...  
Keyword(s):  
Large Range ◽  
Star Formation History ◽  
Large Area ◽  
Substantial Fraction ◽  
Formation History ◽  
Infrared Background ◽  
History Of ◽  
Cosmic Infrared Background ◽  
Number Counts ◽  
Cosmic History

Abstract The cosmic infrared background (CIB) provides a fundamental observational constraint on the star-formation history of galaxies over cosmic history. We estimate the contribution to the CIB from catalogued galaxies in the COSMOS field by using a novel map fitting technique on the Herschel SPIRE maps. Prior galaxy positions are obtained using detections over a large range in wavelengths in the Ks–3 GHz range. Our method simultaneously fits the galaxies, the system foreground, and the leakage of flux from galaxies located in masked areas and corrects for an “over-fitting” effect not previously accounted for in stacking methods. We explore the contribution to the CIB as a function of galaxy survey wavelength and depth. We find high contributions to the CIB with the deep r (mAB ≤ 26.5), Ks (mAB ≤ 24.0) and 3.6 μm (mAB ≤ 25.5) catalogues. We combine these three deep catalogues and find a total CIB contributions of 10.5 ± 1.6, 6.7 ± 1.5 and 3.1 ± 0.7 nWm−2sr−1 at 250, 350 and 500 μm, respectively. Our CIB estimates are consistent with recent phenomenological models, prior based SPIRE number counts and with (though more precise than) the diffuse total measured by FIRAS. Our results raise the interesting prospect that the CIB contribution at λ ≤ 500 μm from known galaxies has converged. Future large-area surveys like those with the Large Synoptic Survey Telescope are therefore likely to resolve a substantial fraction of the population responsible for the CIB at 250 μm ≤λ ≤ 500 μm.

scholarly journals ALMA constraints on the faint millimetre source number counts and their contribution to the cosmic infrared background

2015 ◽  
Vol 584 ◽  
pp. A78 ◽  
Author(s):  
S. Carniani ◽  
R. Maiolino ◽  
G. De Zotti ◽  
M. Negrello ◽  
A. Marconi ◽  
...  
Keyword(s):  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Number Counts ◽  
Source Number

Simulations of the infrared galaxy number counts and the cosmic infrared background

2002 ◽  
Vol 30 (9) ◽  
pp. 2021-2026 ◽  
Author(s):  
Tsutomu T. Takeuchi ◽  
Hiroshi Shibai ◽  
Takako T. Ishii
Keyword(s):  
Infrared Galaxy ◽  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Number Counts

scholarly journals Exploring Galaxy Evolution from Infrared Number Counts and Cosmic Infrared Background

2001 ◽  
Vol 53 (1) ◽  
pp. 37-52 ◽  
Author(s):  
Tsutomu T. Takeuchi ◽  
Takako T. Ishii ◽  
Hiroyuki Hirashita ◽  
Kohji Yoshikawa ◽  
Hideo Matsuhara ◽  
...  
Keyword(s):  
Galaxy Evolution ◽  
Infrared Background ◽  
Cosmic Infrared Background ◽  
Number Counts

scholarly journals Galaxy Evolution in the Infrared: Number Counts and Cosmic Infrared Background

2001 ◽  
Vol 204 ◽  
pp. 303-303
Author(s):  
T. T. Takeuchi ◽  
H. Hirashita ◽  
T. T. Ishii ◽  
K. Yoshikawa
Keyword(s):  
Galaxy Evolution ◽  
Evolutionary History ◽  
Rapid Evolution ◽  
Far Infrared ◽  
The Galaxy ◽  
Evolutionary Phase ◽  
Infrared Background ◽  
Order Of Magnitude ◽  
Cosmic Infrared Background ◽  
Number Counts

Recently reported infrared galaxy number counts and cosmic infrared background (CIRB) measures all suggest that galaxies have experienced a strong evolutionary phase. We statistically estimated the galaxy evolution history from these data. We treated the evolution of galaxy luminosity as a stepwise nonparametric form, in order to explore the most suitable evolutionary history which satisfies the constraint from the CIRB. We found that an order of magnitude increase of the far infrared luminosity at redshift z = 0.75 - 1.0 was necessary to reproduce the very high CIRB intensity at ~ 150 μm reported by Hauser et al. (1998). We note that too large an evolutionary factor at high z overpredicts the CIRB intensity around 1 mm. The evolutionary history also satisfies the constraints from galaxy number counts obtained by IRAS, ISO and SCUBA. The rapid evolution of the IR luminosity density required from the CIRB well reproduces the very steep slope of galaxy number counts obtained by ISO. Based on this result and the evolution of optical luminosity density, we quantitatively discuss the contribution of starburst galaxies. In addition, we present the performance of the Japanese IRIS galaxy survey.

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.

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