SIMBAD references

2015A&A...580A.119V - Astronomy and Astrophysics, volume 580A, 119-119 (2015/8-1)

Forecasts for the detection of the magnetised cosmic web from cosmological simulations.

VAZZA F., FERRARI C., BRUEGGEN M., BONAFEDE A., GHELLER C. and WANG P.

Abstract (from CDS):

The cosmic web contains a large part of the total gas mass in the Universe, but it is difficult to detect at most wavelengths. Synchrotron emission from shock-accelerated electrons may offer the chance of imaging the cosmic web at radio wavelengths. In this work we use 3D cosmological ENZO-magnetohydrodynamic simulations (combined with a post-processing renormalisation of the magnetic field to bracket for missing physical ingredients and resolution effects) to produce models of the radio emission from the cosmic web. In post-processing we study the capabilities of 13 large radio surveys to detect this emission. We find that surveys by LOFAR, SKA1-LOW, and MWA have a chance of detecting the cosmic web, provided that the magnetisation level of the tenuous medium in filaments is of the order of ∼1% of the thermal gas energy.

Abstract Copyright:

Journal keyword(s): acceleration of particles - magnetic fields - radio continuum: galaxies - intergalactic medium - shock waves

Simbad objects: 2

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2019.12.08-03:54:08

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