activity
19932026
most citedA measurement of large-scale peculiar velocities of clusters of galaxies: results and cosmological implications

317 citations · 2.4k across the 66 of their papers we have counts for

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Showing 2012Show all

5 papers · 1 filter

astro-ph.CO2012★ 53 cited

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…

astro-ph.CO2012

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…

astro-ph.CO2012★ 59 cited

The nature of the unresolved extragalactic soft CXB

N. Cappelluti, P. Ranalli, M. Roncarelli +11

In this paper we investigate the power spectrum of the unresolved 0.5-2 keV CXB with deep Chandra 4 Ms observations in the CDFS. We measured a signal which, on scales >30", is sign…

astro-ph.CO2012★ 26 cited

Measuring the redshift dependence of the CMB monopole temperature with PLANCK data

Ivan de Martino, Fernando Atrio-Barandela, Antonio da Silva +4

We study the power of PLANCK data to constrain deviations of the Cosmic Microwave Background black body temperature from adiabatic evolution using the thermal Sunyaev-Zeldovich ani…

astro-ph.CO2012★ 85 cited

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…