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http://hdl.handle.net/20.500.12386/32240
Titolo: | The Highly Self-absorbed Blazar PKS 1351-018 | Autori: | Punsly, Brian Frey, Sándor Reynolds, Cormac MARZIANI, Paola Pushkarev, Alexander Chen, Sina Li, Shang Kharb, Preeti |
Data pubblicazione: | 2021 | Rivista: | THE ASTROPHYSICAL JOURNAL | Numero: | 919 | Fascicolo: | 1 | Da pagina:: | 40 | Abstract: | PKS 1351-018 at a redshift of z = 3.71 is one of the most luminous, steady synchrotron sources with a luminosity >10<SUP>47</SUP> erg s<SUP>-1</SUP>. The synchrotron luminosity does not seem to have varied by more than ~25% over 35 yr. In order to appreciate this remarkable behavior, if it were at z = 0.5, it would have a flux density at 15 GHz in a range of 110-137 Jy over 11 yr. In spite of this steady behavior, two strong γ-ray flares ≲10<SUP>49</SUP> erg s<SUP>-1</SUP> were detected in 2011 and 2016. There is a blazar-like behavior coexisting with the steady behavior. This study is aimed at elucidating the dual nature of this source. We find that the radio source is extremely compact with a bright core and a steep spectrum secondary component, 12 mas away, that appears to be constant in position and flux density in six epochs from 1995-2018. We estimate that a jet with a time averaged power of (5.2 ± 3.2) × 10<SUP>45</SUP> erg s<SUP>-1</SUP> terminates in this lobe, which is advancing ≳0.9c at a deprojected distance of 1-3 kpc from the central engine. This is the rare case of a young (~6000 yr), very powerful radio source that is viewed a few degrees from the jet axis. We find evidence of a high velocity (4000 km s<SUP>-1</SUP>), high ionization wind emanating from a luminous quasar. The young radio jet appears to experience modest bending as it navigates through the intense quasar environment. | URI: | http://hdl.handle.net/20.500.12386/32240 | URL: | https://iopscience.iop.org/article/10.3847/1538-4357/ac1070 | ISSN: | 0004-637X | DOI: | 10.3847/1538-4357/ac1070 | Bibcode ADS: | 2021ApJ...919...40P | Fulltext: | open |
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