Scaling of Relativistic Shear Flows with the Bulk Lorentz Factor

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dc.citation.articleNumber129
dc.citation.journalTitleThe Astrophysical Journal
dc.citation.volumeNumber854
dc.contributor.authorLiang, Edison
dc.contributor.authorFu, Wen
dc.contributor.authorBöttcher, Markus
dc.contributor.authorRoustazadeh, Parisa
dc.date.accessioned2018-07-11T20:57:33Z
dc.date.available2018-07-11T20:57:33Z
dc.date.issued2018
dc.description.abstractWe compare Particle-in-cell simulation results of relativistic electron–ion shear flows with different bulk Lorentz factors, and discuss their implications for spine-sheath models of blazar versus gamma-ray burst (GRB) jets. Specifically, we find that most properties of the shear boundary layer scale with the bulk Lorentz factor: the lower the Lorentz factor, the thinner the boundary layer, and the weaker the self-generated fields. Similarly, the energized electron spectrum peaks at an energy near the ion drift energy, which increases with bulk Lorentz factor, and the beaming of the accelerated electrons along the shear interface gets narrower with increasing Lorentz factor. This predicts a strong correlation between emitted photon energy, angular beaming, and temporal variability with the bulk Lorentz factor. Observationally, we expect systematic differences between the high-energy emissions of blazars and GRB jets.
dc.identifier.citationLiang, Edison, Fu, Wen, Böttcher, Markus, et al.. "Scaling of Relativistic Shear Flows with the Bulk Lorentz Factor." <i>The Astrophysical Journal,</i> 854, (2018) IOP Publishing: https://doi.org/10.3847/1538-4357/aaa7f5.
dc.identifier.doihttps://doi.org/10.3847/1538-4357/aaa7f5
dc.identifier.urihttps://hdl.handle.net/1911/102411
dc.language.isoeng
dc.publisherIOP Publishing
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleScaling of Relativistic Shear Flows with the Bulk Lorentz Factor
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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