Intrinsic evolution of a superluminal knot in 3C345.

Details Intrinsic evolution of a superluminal knot in 3C345. Intrinsic evolution of a superluminal knot in 3C345.

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...308..395q&link_type=abstract

Astronomy and Astrophysics, v.308, p.395-402

Astronomy and Astrophysics

Astrophysics

20

Galaxies: Jets, Acceleration Of Particles, Quasars: 3C345, Mhd, Relativity

Scientific paper

In the quasar 3C345 jet components move superluminally along bent trajectories, which differ for each component. Qian et al., (1991) & (1992) derived a geometric helical motion model for the jet components C4 & C5. From this helical geometry and the observed motion, the time-dependence of the Doppler boosting factor is derived and used to relativistically correct the observed flux density and size variability of C4. Very different from the observed behaviour and not consistent with expectations from canonical models, the intrinsic (Doppler-corrected) flux density evolution of C4 shows a nearly rectangular outburst-like shape with rising and decay times of ~5-10yrs in the comoving frame. At the same time C4 expands subluminally with an intrinsic velocity of v_int_~0.09c. Both, variability and subluminal expansion, are discussed in a model involving field amplification and `in situ' particle acceleration followed by adiabatic expansion.

Affiliated with

Also associated with

No associations

Rating

Intrinsic evolution of a superluminal knot in 3C345. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Intrinsic evolution of a superluminal knot in 3C345., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intrinsic evolution of a superluminal knot in 3C345. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1332524