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dc.contributor.authorFurlanetto, Steven R.
dc.contributor.authorLoeb, Abraham
dc.date.accessioned2019-09-24T12:04:21Z
dc.date.issued2001
dc.identifier.citationFurlanetto, Steven R., and Abraham Loeb. 2001. “Intergalactic Magnetic Fields from Quasar Outflows.” The Astrophysical Journal 556 (2): 619–34. https://doi.org/10.1086/321630.
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41393295*
dc.description.abstractOutflows from quasars inevitably pollute the intergalactic medium (IGM) with magnetic fields. The short-lived activity of a quasar leaves behind an expanding magnetized bubble in the IGM. We model the expansion of the remnant quasar bubbles and calculate their distribution as a function of size and magnetic field strength at different redshifts. We generically find that by a redshift z similar to 3, about 5%-20% of the IGM volume is filled by magnetic fields with an energy density greater than or similar to 10% of the mean thermal energy density of a photoionized IGM (at similar to 10(4) K). As massive galaxies and X-ray clusters condense out of the magnetized IGM, the adiabatic compression of the magnetic field could result in the field strength observed in these systems without a need for further dynamo amplification. The intergalactic magnetic field could also provide a nonthermal contribution to the pressure of the photoionized gas that may account for the claimed discrepancy between the simulated and observed Doppler width distributions of the Ly alpha forest.
dc.language.isoen_US
dc.publisherAmerican Astronomical Society
dash.licenseLAA
dc.titleIntergalactic Magnetic Fields from Quasar Outflows
dc.typeJournal Article
dc.description.versionVersion of Record
dc.relation.journalThe Astrophysical Journal
dash.depositing.authorLoeb, Abraham::9975df1f269ab49c1ad5a328a1ec1476::600
dc.date.available2019-09-24T12:04:21Z
dash.workflow.comments1Science Serial ID 96034
dc.identifier.doi10.1086/321630
dash.source.volume556;2
dash.source.page619-634


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