A Multifrequency Study of Double-Double Radio Galaxies

Details A Multifrequency Study of Double-Double Radio Galaxies A Multifrequency Study of Double-Double Radio Galaxies

2009-05-04

arxiv.org/abs/0905.0452v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

To appear in ASP Conference Series, Vol. 407, The Low-Frequency Radio Universe, eds D. J. Saikia, D. A. Green, Y. Gupta and T.

Scientific paper

One of the striking examples of episodic activity in active galactic nuclei are the double-double radio galaxies (DDRGs) with two pairs of oppositely-directed radio lobes from two different cycles of activity. We illustrate, using the DDRG J1453+3308 as an example, that observations over a wide range of frequencies using both the GMRT and the VLA can be used to determine the spectra of the inner and outer lobes, estimate their spectral ages, estimate the time scales of episodic activity, and examine any difference in the injection spectra in the two cycles of activity. Low-frequency GMRT observations also suggest that DDRGs and triple-double radio galaxies are rather rare.

Affiliated with

Also associated with

No associations

Rating

A Multifrequency Study of Double-Double Radio Galaxies 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 A Multifrequency Study of Double-Double Radio Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Multifrequency Study of Double-Double Radio Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-200060