Show simple item record

dc.contributor.authorHarris, Daniel E.
dc.contributor.authorLee, Nicholas P.
dc.contributor.authorSchwartz, D.A.
dc.contributor.authorSiemiginowska, Aneta L.
dc.contributor.authorMassaro, Francesco
dc.contributor.authorBirkinshaw, Mark
dc.contributor.authorWorrall, Diana M.
dc.contributor.authorCheung, C. C.
dc.contributor.authorGelbord, Jonathan M.
dc.contributor.authorPerlman, Eric S.
dc.date.accessioned2017-10-06T17:36:57Z
dc.date.available2017-10-06T17:36:57Z
dc.date.issued2017-09-08
dc.identifier.citationHarris, D.E., Lee, N.P., Schwartz, D.A., Siemiginowska, A., Massaro, F., Birkinshaw, M., Worrall, D.M., Cheung, C.C., Gelbord, J.M., Jorstad, S.G., Marscher, A.P., Landt, H., Marshall, H., Perlman, E.S., Stawarz, L., Uchiyama, Y., Urry, C.M. A Multi-band Study of the Remarkable Jet in Quasar 4C+19.44 (2017) Astrophysical Journal, 846 (2), art. no. 119, .en_US
dc.identifier.urihttp://hdl.handle.net/11141/1814
dc.descriptiongalaxies: active, galaxies: jets, quasars: individual (4C+19.44), radiation mechanisms: non-thermalen_US
dc.description.abstractWe present arcsecond-resolution data in the radio, IR, optical, and X-ray for 4C+19.44 (=PKS 1354+195), the longest and straightest quasar jet with deep X-ray observations. We report results from radio images with half to one arcsecond angular resolution at three frequencies, plus Hubble Space Telescope and Spitzer data. The Chandra data allow us to measure the X-ray spectral index in 10 distinct regions along the 18″ jet and compare with the radio index. The radio and X-ray spectral indices of the jet regions are consistent with a value of throughout the jet, to within uncertainties. The X-ray jet structure to the south extends beyond the prominent radio jet and connects to the southern radio lobe, and there is extended X-ray emission, both in the direction of the unseen counter-jet, and also coincident with the northern radio lobe. This jet is remarkable because its straight appearance over a large distance allows the geometry factors to be taken as fixed along the jet. Using the model of inverse Compton scattering of the cosmic microwave background (iC/CMB) by relativistic electrons, we find that the magnetic field strengths and Doppler factors are relatively constant along the jet. If instead the X-rays are synchrotron emission, they must arise from a population of electrons distinct from the particles producing the radio synchrotron spectrum. © 2017. The American Astronomical Society. All rights reserved..en_US
dc.language.isoen_USen_US
dc.rights© 2017 The American Astronomical Society. All rights reserved.en_US
dc.rights.urihttp://journals.aas.org/authors/apc.htmlen_US
dc.titleA Multi-band Study of the Remarkable Jet in Quasar 4C+19.44en_US
dc.typeArticleen_US
dc.identifier.doi10.3847/1538-4357/aa845c


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record