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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6752
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dc.contributor.authorBasumallick, Partha Pratim-
dc.contributor.authorGupta, Nayantara-
dc.date.accessioned2017-09-28T06:46:19Z-
dc.date.available2017-09-28T06:46:19Z-
dc.date.issued2017-07-
dc.identifier.citationThe Astrophysical Journal, 2017, Vol.844, p58en_US
dc.identifier.issn0004-637X-
dc.identifier.issn1538-4357-(Online)-
dc.identifier.urihttp://hdl.handle.net/2289/6752-
dc.descriptionOpen Accessen_US
dc.description.abstractThe multiwavelength photon spectrum from the BL Lac object AP Librae extends from radio to TeV gamma rays. The X-ray to very high-energy gamma-ray emission from the extended jet of this source has been modeled with inverse Compton (IC) scattering of relativistic electrons off the cosmic microwave background (CMB) photons. The IC/CMB model requires the kpc-scale extended jet to be highly collimated with a bulk Lorentz factor close to 10. Here we discuss the possibility of a proton synchrotron origin of X-rays and gamma rays from the extended jet with a bulk Lorentz factor of 3. This scenario requires an extreme proton energy of 3.98 × 1021 eV and a high magnetic field of 1 mG of the extended jet with jet power ~5 × 1048 erg s−1 in particles and the magnetic field (which is more than 100 times the Eddington luminosity of AP Librae) to explain the very high-energy gamma-ray emission. Moreover, we have shown that X-ray emission from the extended jets of 3C 273 and PKS 0637-752 could be possible by proton synchrotron emission with jet power comparable to the Eddington luminosities.en_US
dc.language.isoenen_US
dc.publisherIOP Sciences for The American Astronomical Societyen_US
dc.relation.urihttp://adsabs.harvard.edu/abs/2017ApJ...844...58Pen_US
dc.relation.urihttp://arxiv.org/abs/1706.04895en_US
dc.relation.urihttp://dx.doi.org/10.3847/1538-4357/aa7a12en_US
dc.rights2017, The American Astronomical Society.en_US
dc.subjectBL Lacertae objectsen_US
dc.subjectjets gamma rays galaxiesen_US
dc.titleConstraints on a proton synchrotron origin of VHE gamma rays from the extended jet of AP librae.en_US
dc.typeArticleen_US
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