Constraint on primordial magnetic fields in the light of ARCADE 2 and EDGES observations

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dc.contributor.author Natwariya, Pravin Kumar
dc.date.accessioned 2020-07-31T11:31:05Z
dc.date.available 2020-07-31T11:31:05Z
dc.date.issued 2020-07
dc.identifier.citation Natwariya, Pravin Kumar, "Constraint on primordial magnetic fields in the light of ARCADE 2 and EDGES observations", arXiv, Cornell University Library, DOI: arXiv:2007.09938, Jul. 2020. en_US
dc.identifier.uri http://arxiv.org/abs/2007.09938
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/5590
dc.description.abstract We study the constraints on primordial magnetic fields (PMFs) in the light of Experiment to Detect the Global Epoch of Reionization Signature (EDGES) low-band observation and Absolute Radiometer for Cosmology, Astrophysics and Diffuse Emission (ARCADE 2). In the presence of PMFs, 21 cm differential brightness temperature can modify due to the heating of the gas by decaying magnetic fields. ARCADE 2 observation detected excess radio radiation in the frequency range 3-90 GHz. Using the ARCADE 2 and EDGES observations, we find the upper and lower limits on the primordial magnetic field to be 4.3�10?1 and 1.9�10?1 nG respectively using 100% observed excess radio radiation. At the length scale of 1 Mpc, the upper and lower bounds, on PMFs, corresponds to B1 Mpc=3.16�10?1 and 1.34�10?1 nG respectively.
dc.description.statementofresponsibility by Pravin Kumar Natwariya
dc.language.iso en_US en_US
dc.publisher Cornell University Library en_US
dc.title Constraint on primordial magnetic fields in the light of ARCADE 2 and EDGES observations en_US
dc.type Pre-Print en_US
dc.relation.journal arXiv


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