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2010

The Inner Jet of the Quasar PKS 1510$-$089 as Revealed by Multi-waveband Monitoring

Marscher, Alan P., Jorstad, Svetlana G., D'Arcangelo, Francesca D. et al.

Understand

As part of our comprehensive long-term multi-waveband monitoring of 34 blazars, we followed the activity in the jet of the blazar PKS 1510-089 during major outbursts during the first half of 2009.

  • The most revealing event was a two-month long outburst that featured a number of gamma-ray flares.
  • During the outburst, the position angle of optical linear polarization rotated by about 720 degrees, which implies that a single emission feature was responsible for all of the flares during the outburst.
  • At the end of the rotation, a new superluminal knot (~ 22c) passed through the "core" seen on 43 GHz VLBA images at essentially the same time as an extremely sharp, high-amplitude gamma-ray and optical flare occurred.

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    Closest in time.

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