J16021+3326: New Multi-Frequency Observations of a Complex Source
S.E. Tremblay, G.B. Taylor, J.L. Richards, A.C.S. Readhead, J.F., Helmboldt, R.W. Romani, and S.E. Healey
TL;DR
This paper reports multi-frequency VLBA observations of J16021+3326, revealing it as a blazar with a precessing jet aligned close to our line of sight, based on variability and imaging data.
Contribution
It provides new multi-frequency VLBA data and variability analysis that clarify the complex jet structure and classification of J16021+3326 as a blazar.
Findings
J16021+3326 is confirmed as a blazar.
The source exhibits a precessing jet.
Jet orientation is nearly aligned with our line of sight.
Abstract
We present multifrequency Very Long Baseline Array (VLBA) observations of J16021+3326. These observations, along with variability data obtained from the Owens Valley Radio Observatory (OVRO) candidate gamma-ray blazar monitoring program, clearly indicate this source is a blazar. The peculiar characteristic of this blazar, which daunted previous classification attempts, is that we appear to be observing down a precessing jet, the mean orientation of which is aligned with us almost exactly.
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