2009

Jet opening angles and gamma-ray brightness of AGN

Pushkarev, A. B., Kovalev, Y. Y., Lister, M. L. et al.

Understand

We have investigated the differences in apparent opening angles between the parsec-scale jets of the active galactic nuclei (AGN) detected by the Fermi Large Area Telescope (LAT) during its first three months of operations and those of non-LAT-detected AGN.

We used 15.4 GHz VLBA observations of sources from the 2 cm VLBA MOJAVE program, a subset of which comprise the statistically complete flux density limited MOJAVE sample.
We determined the apparent opening angles by analyzing transverse jet profiles from the data in the image plane and by applying a model fitting technique to the data in the (u,v) plane.
Both methods provided comparable opening angle estimates.

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Then

Marscher, A. P. 2008, in Astronomical Society of the Pacific Conference Series, Vol. 386, Extragalactic Jets: Theory and Observation from Radio to Gamma Ray, ed. T. A. Rector & D. S. De Young, 437
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Atwood, W. B., Abdo, A. A., Ackermann, M., & et al. 2009, ApJ, 697, 1071
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Kovalev, Y. Y. 2009, ApJL, submitted, arXiv:0908.4152
Original
2009
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Kovalev, Y. Y., Aller, H. D., Aller, M. F., et al. 2009, ApJ, 696, L17
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Savolainen, T., Homan, D. C., Hovatta, T., et al. 2009, in preparation
2009
Closest in time.

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