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Related papers: Cosmic Infrared Background: Resolved, Unresolved a…

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We study the evolution of stellar content and the chemical enrichment of the universe averaged over the whole population of galaxies by means of a series of chemo-spectrophotometric models that take into account the metallicity and dust…

Astrophysics · Physics 2009-11-06 R. Sadat , B. Guiderdoni , J Silk

We present a galaxy (SAGE1CJ053634.78-722658.5) at a redshift of 0.14 of which the IR is entirely dominated by emission associated with the AGN. We present the 5-37 um Spitzer/IRS spectrum and broad wavelength SED of SAGE1CJ053634, an IR…

The Cosmic Infrared Background (CIB) provides an opportunity to constrain many properties of the high redshift (z>6) stellar population as a whole. This background, specifically, from 1 to 200 microns, will contain any information about the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Elizabeth R. Fernandez , Herve Dole , Ilian T. Iliev

Sensitivity of future far infrared 10m class space telescopes will be limited by a confusion noise created by distant galaxies. Our primary goal is to create a model that will allow us to estimate the confusion noise parameters of the…

Astrophysics of Galaxies · Physics 2020-11-04 A. A. Ermash , S. V. Pilipenko , V. N. Lukash

We present the first results of our program to study a sample of local luminous infrared galaxies (LIRGs, L_IR = 10^11-10^12 L_sun) with the Spitzer infrared spectrograph (IRS). In these proceedings we investigate the behavior of the 9.7 um…

Astrophysics of Galaxies · Physics 2010-05-07 M. Pereira-Santaella , A. Alonso-Herrero , G. H. Rieke , L. Colina

We present a large robust sample of 1503 reliable and unconfused 70microm selected sources from the multiwavelength data set of the Cosmic Evolution Survey (COSMOS). Using the Spitzer IRAC and MIPS photometry, we estimate the total infrared…

We aim at modeling the infrared galaxy evolution in an as simple as possible way and reproduce statistical properties among which the number counts between 15 microns and 1.1 mm, the luminosity functions, and the redshift distributions. We…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Matthieu Béthermin , Hervé Dole , Guilaine Lagache , Damien Le Borgne , Aurélie Pénin

We report on IRAC-4.5mic, IRAC-8.0mic and MIPS-24mic deep observations of 16 Gamma-Ray Burst (GRBs) host galaxies performed with the Spitzer Space Telescope, and we investigate in the thermal infrared the presence of evolved stellar…

Astrophysics · Physics 2009-11-11 E. Le Floc'h , V. Charmandaris , W. J. Forrest , F. Mirabel , L. Armus , D. Devost

Many recent estimates of the star formation rate density at high redshift rely on rest-frame ultraviolet (UV) data. These are highly sensitive to dust absorption. Applying a correlation between the far-infrared (FIR) to UV flux ratio and UV…

We present preliminary results on a study of the 2--850 micron SEDs of a sample of 30 FIRBACK galaxies selected at 170 micron. These sources are representative of the brightest ~10% of the Cosmic Infrared Background. They are a mixture of…

Astrophysics · Physics 2007-05-23 Anna Sajina , Douglas Scott , Michel Dennefeld , Herve Dole , Mark Lacy , Guilaine Lagache

The Cosmic Far-Infrared Background (CFIRB) contains information about the number and distribution of contributing sources and thus gives us an important key to understand the evolution of galaxies. Using a confusion study to set a…

We present follow-up observations of the far-infrared (FIR) sources at 90, 150 and 180 mu detected as part of the ISOPHOT EBL project, which has recently measured the absolute surface brightness of the cosmic infrared background radiation…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Petri Vaisanen , Jari K. Kotilainen , Mika Juvela , Kalevi Mattila , Andreas Efstathiou , Jere Kahanpaa

Submillimetre (sub-mm) galaxies have very high infrared (IR) luminosities and are thousands of times more numerous at z~2 than local ultra-luminous IR galaxies. They therefore represent a key phase in galaxy evolution which can be missed in…

Astrophysics · Physics 2007-05-23 Alexandra Pope , Ranga-Ram Chary , Mark Dickinson , Douglas Scott

We present the mid-infrared (MIR) spectra obtained with the Spitzer InfraRed Spectrograph (IRS) for a sample of 52 sources, selected as infrared luminous, z>1 candidates in the Extragalactic First Look Survey (XFLS). The sample selection…

We present a linear clustering model of cosmic infrared background (CIB) anisotropies at large scales that is used to measure the cosmic star formation rate density up to redshift 6, the effective bias of the CIB and the mass of dark-matter…

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

The COBE FIRAS data contain foreground emission from interplanetary, Galactic interstellar dust and extragalactic background emission. We use three different methods to separate the various emission components, and derive the spectrum of…

Astrophysics · Physics 2008-11-26 D. J. Fixsen , E. Dwek , J. C. Mather , C. L. Bennett , R. A. Shafer

Stellar fluxes from the 2MASS catalog are used to remove the contribution due to Galactic stars from the intensity measured by DIRBE in 13 regions in the North and South Galactic polar caps. Allowing for a constant calibration factor…

Astrophysics · Physics 2007-05-23 Edward L. Wright , Benjamin D. Johnson

Emission from high-$z$ galaxies must unquestionably contribute to the near-infrared background (NIRB). However, this contribution has so far proven difficult to isolate even after subtracting the resolved galaxies to deep levels. Remaining…

Cosmology and Nongalactic Astrophysics · Physics 2016-05-04 Bin Yue , Andrea Ferrara , Kári Helgason

We present SEDs, Spitzer colours, and IR luminosities for 850 micron selected galaxies in the GOODS-N field. Using the deep Spitzer Legacy images and new data and reductions of the VLA-HDF radio data, we find statistically secure…

We make predictions for the cosmological surveys to be conducted by MIPS/SIRTF at 24, 70 and 160 microns, for the GTO and the legacy programs, using the latest knowledge of the instrument. In addition to detector and cirrus confusion noise,…

Astrophysics · Physics 2008-11-26 H. Dole , G. Lagache , J. -L. Puget , .