90 citations · 577 across the 19 of their papers we have counts for
18 papers
Populations behind the source-subtracted cosmic infrared background anisotropies
A. Kashlinsky, R. G. Arendt, M. Ashby +27
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 i…
A GeV-TeV Measurement of the Extragalactic Background Light
Abhishek Desai, Kári Helgason, Marco Ajello +4
The Extragalactic Background Light (EBL) can be probed via the absorption imprint it leaves in the spectra of gamma-ray sources (). We recently developed a de…
A new measurement of the Hubble constant and matter content of the Universe using extragalactic background light -ray attenuation
Alberto Domínguez, Radoslaw Wojtak, Justin Finke +7
The Hubble constant and matter density of the Universe are measured using the latest -ray attenuation results from Fermi-LAT and Cherenkov telescopes. This metho…
Probing the cross-power of unresolved cosmic infrared and X-ray backgrounds with upcoming space missions
A. Kashlinsky, R. G. Arendt, N. Cappelluti +4
The source-subtracted cosmic infrared background (CIB) fluctuations uncovered in deep Spitzer data cannot be explained by known galaxy populations and appear strongly coherent with…
The SPLASH and Chandra COSMOS Legacy Survey: the Cross Power Between Near-Infrared and X-Ray Background Fluctuations
Yanxia Li, Nico Cappelluti, Richard G. Arendt +3
We study the source-subtracted near-infrared and X-ray background fluctuations of the COSMOS field using data from the Spitzer SPLASH program (1272 hours) and Chandra COSMOS…
X-ray background and its correlation with the 21 cm signal
Q. Ma, B. Ciardi, M. B. Eide +1
We use high resolution hydrodynamical simulations to study the contribution to the X-ray background from high- energetic sources, such as X-ray binaries, accreting nuclear black…
Measuring patchy reionisation with kSZ-21 cm correlations
Q. Ma, K. Helgason, E. Komatsu +2
We study cross-correlations of the kinetic Sunyaev-Zel'dovich effect (kSZ) and 21 cm signals during the epoch of reionisation (EoR) to measure the effects of patchy reionisation. S…
Probing the EBL evolution at high redshift using GRBs detected with the Fermi-LAT
Abhishek Desai, Marco Ajello, Nicola Omodei +6
The extragalactic background light (EBL), from ultraviolet to infrared wavelengths, is predominantly due to emission from stars, accreting black holes and reprocessed light due to…
Probing large scale coherence between Spitzer IR and Chandra X-ray source-subtracted cosmic backgrounds
N. Cappelluti, R. Arendt, A. Kashlinsky +6
We present new measurements of the large scale clustering component of the cross-power spectra of the source-subtracted Spitzer-IRAC Cosmic Infrared Background (CIB) and Chandra-AC…
AKARI near-infrared background fluctuations arise from normal galaxy populations
Kári Helgason, Eiichiro Komatsu
We show that measurements of the fluctuations in the near-infrared background (NIRB) from the AKARI satellite can be explained by faint galaxy populations at low redshifts. We demo…
Lyman-tomography of cosmic infrared background fluctuations with Euclid: probing emissions and baryonic acoustic oscillations at z>10
A. Kashlinsky, R. G. Arendt, F. Atrio-Barandela +1
The Euclid space mission, designed to probe evolution of the Dark Energy, will map a large area of the sky at three adjacent near-IR filters, Y, J and H. This coverage will also en…
Detecting high- galaxies in the Near Infrared Background
Bin Yue, Andrea Ferrara, Kári Helgason
Emission from high- galaxies must unquestionably contribute to the near-infrared background (NIRB). However, this contribution has so far proven difficult to isolate even after…
On the Physical Requirements for a Pre-Reionization Origin of the Unresolved Near-Infrared Background
Kári Helgason, Massimo Ricotti, Alexander Kashlinsky +1
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 bla…
Reconstructing emission from pre-reionization sources with cosmic infrared background fluctuation measurements by the JWST
A. Kashlinsky, J. C. Mather, K. Helgason +3
We present new methodology to use cosmic infrared background (CIB) fluctuations to probe sources at 10<z<30 from a JWST/NIRCam configuration that will isolate known galaxies to 28…
The Contribution of z<6 Sources to the Spatial Coherence in the Unresolved Cosmic near-Infrared and X-ray Backgrounds
Kari Helgason, Nico Cappelluti, Guenther Hasinger +2
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…
Reconstructing the γ-ray Photon Optical Depth of the Universe to z~4 from Multiwavelength Galaxy Survey Data
Kari Helgason, Alexander Kashlinsky
We reconstruct γ-ray opacity of the Universe out to z<3-4 using an extensive library of 342 observed galaxy luminosity function surveys extending to high redshifts. We cover the wh…
Can the Near-IR Fluctuations Arise from Known Galaxy Populations?
Kari Helgason, Massimo Ricotti, Alexander Kashlinsky
Spatial Fluctuations in the Cosmic Infrared Background have now been measured out to sub-degree scales showing a strong clustering signal from unresolved sources. We attempt to exp…
Reconstructing the Near-IR Background Fluctuations from known Galaxy Populations using Multiband Measurements of Luminosity Functions
Kari Helgason, Massimo Ricotti, Alexander Kashlinsky
We model fluctuations in the Cosmic Infrared Background (CIB) arising from known galaxy populations using 233 measured UV, optical and NIR luminosity functions (LF) from a variety…