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Related papers: The Resolved NIR Extragalactic Background

200 papers

We present a medium deep survey carried out in the three filters B_j, R and K. The survey covers homogeneously the central square degree around the Northern Ecliptic Pole (NEP) down to a completeness limit of 24.25, 23.0 and 17.5mag in B_j,…

Astrophysics · Physics 2009-11-06 M. W. Kuemmel , S. J. Wagner

The extragalactic background light (EBL) is one of the fundamental observational quantities in cosmology. All energy releases from resolved and unresolved extragalactic sources, and the light from any truly diffuse background, excluding the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Eli Dwek , Frank Krennrich

We describe a new method for measuring the extragalactic background light (EBL) through the detection of $\gamma$-ray inverse Compton (IC) emission due to scattering of the EBL photons off relativistic electrons in the lobes of radio…

We present predictions for the UV-to-mm extragalactic background light (EBL) from a recent version of the GALFORM semi-analytical model of galaxy formation which invokes a top-heavy stellar initial mass function (IMF) for galaxies…

Astrophysics of Galaxies · Physics 2019-06-19 William. I. Cowley , Cedric G. Lacey , Carlton M. Baugh , Shaun Cole , Carlos S. Frenk , Claudia del P. Lagos

The Extragalactic Background Light (EBL) is the integrated light from all the stars that have ever formed, and spans the IR-UV range. The interaction of very-high-energy (VHE: E>100 GeV) gamma-rays, emitted by sources located at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Nijil Mankuzhiyil , Massimo Persic , Fabrizio Tavecchio

This is one of two papers in which we report the detection of structure in the cosmic infrared background (CIB) between 1.25 - 2.2 micron through the use of data from the Two Micron Sky Survey (2MASS). This paper concentrates on data…

Astrophysics · Physics 2009-11-07 S. Odenwald , A. Kashlinsky , J. C. Mather , M. F. Skrutskie , R. M. Cutri

When very high-energy photons (VHE, E>100 GeV) propagate over cosmological distances, they interact with background light by pair production. Observations of spectral features in the VHE band of extragalactic sources related to this…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Matthias Lorentz , Pierre Brun , David Sanchez

We use the new results of the HEGRA detector on the TeV gamma-ray emission from MKN 501 to set upper limits on the energy density of the cosmic infrared background (CIRB). Contrary to previous interpretations of the gamma-ray spectrum of…

Astrophysics · Physics 2010-11-30 Todor Stanev , Alberto Franceschini

The Extragalactic Background Light (EBL) from the infrared (IR) through the ultraviolet (UV) is dominated by emission from stars, either directly or through absorption and reradiation by dust. It can thus give information on the star…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 Justin D. Finke

We obtained New Horizons LORRI images to measure the cosmic optical background (COB) intensity integrated over $0.4\lesssim\lambda\lesssim0.9{~\rm\mu m}.$ The survey comprises 16 high Galactic-latitude fields selected to minimize scattered…

The present day spectrum of the extragalactic background light (EBL) in UV, optical and IR wavelengths is the integral result of multiple astrophysical processes going on throughout the evolution of the Universe. The relevant processes…

Astrophysics of Galaxies · Physics 2021-06-22 A. A. Korochkin , G. I. Rubtsov

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

Since it started observing the sky, the INTEGRAL satellite has discovered new categories of high mass X-ray binaries (HMXB) in our Galaxy. These observations raise important questions on the formation and evolution of these rare and…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Alexis Coleiro , Sylvain Chaty , Juan A. Zurita Heras , Farid Rahoui , John A. Tomsick

Recent observations of the TeV gamma-ray spectra of the two closest active galactic nuclei (AGNs), Markarian 501 (Mrk 501) and Markarian 421 (Mrk 421), by the Whipple and HEGRA collaborations have stimulated efforts to estimate or limit the…

Astrophysics · Physics 2010-12-03 V. V. Vassiliev

The cross-correlation between the 21 cm emission from the high-redshift intergalactic medium and the near-infrared (NIR) background light from the high-redshift galaxies promises to be a powerful probe of cosmic reionization. In this paper,…

Cosmology and Nongalactic Astrophysics · Physics 2014-07-18 Xiao-Chun Mao

We present extragalactic number counts and a lower limit estimate for the cosmic infrared background at 15 um from AKARI ultra deep mapping of the gravitational lensing cluster Abell 2218. This data is the deepest taken by any facility at…

Cosmology and Nongalactic Astrophysics · Physics 2010-06-08 R. Hopwood , S. Serjeant , M. Negrello , C. Pearson , E. Egami , M. Im , J. -P. Kneib , J. Ko , H. M. Lee , M. G. Lee , H. Matsuhara , T. Nakagawa , I. Smail , T. Takagi

We present Herschel/PACS observations of extended [CII]157.7{\mu}m line emission detected on ~ 1 - 10 kpc scales in 60 local luminous infrared galaxies (LIRGs) from the Great Observatories All-sky LIRG Survey (GOALS). We find that most of…

The intrinsic BL Lac spectra above few hundreds GeV can be very different from the observed ones due to the absorption effects by the diffuse Extragalactic Background Light (EBL), at present poorly known. With the recent results, there are…

Astrophysics · Physics 2009-11-10 L. Costamante , F. Aharonian , D. Horns , G. Ghisellini

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

We present a new model of the extragalactic background light (EBL) and corresponding gamma-gamma opacity for intergalactic gamma-ray absorption from z = 0 up to z = 10, based on a semi-analytical model of hierarchical galaxy formation that…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Yoshiyuki Inoue , Susumu Inoue , Masakazu A. R. Kobayashi , Ryu Makiya , Yuu Niino , Tomonori Totani