The radio spectra of reddened Two Micron All Sky Survey quasi-stellar objects: evidence for young radio jets

Details The radio spectra of reddened Two Micron All Sky Survey quasi-stellar objects: evidence for young radio jets The radio spectra of reddened Two Micron All Sky Survey quasi-stellar objects: evidence for young radio jets

Apr 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012mnras.421.2223g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 421, Issue 3, pp. 2223-2231.

Astronomy and Astrophysics

Astronomy

Ism: Jets And Outflows, Galaxies: Active, Galaxies: Jets, Quasars: General, Radio Continuum: General

Scientific paper

Multifrequency radio continuum observations (1.4-22 GHz) of a sample of reddened quasi-stellar objects (QSOs) are presented. We find a high incidence (13/16) of radio spectral properties, such as low-frequency turnovers, high-frequency spectral breaks or steep power-law slopes, similar to those observed in powerful compact steep spectrum (CSS) and gigahertz-peaked spectrum (GPS) sources. The radio data are consistent with relatively young radio jets with synchrotron ages ? yr. This calculation is limited by the lack of high-resolution (milliarcsec) radio observations. For the one source in the sample that such data are available a much younger radio age is determined, ≲ 2 × 103 yr, similar to those of GPS/CSS sources. These findings are consistent with claims that reddened QSOs are young systems captured at the first stages of the growth of their supermassive black holes. It also suggests that expanding radio lobes may be an important feedback mode at the early stages of the evolution of active galactic nuclei.

Affiliated with

Also associated with

No associations

Rating

The radio spectra of reddened Two Micron All Sky Survey quasi-stellar objects: evidence for young radio jets 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 The radio spectra of reddened Two Micron All Sky Survey quasi-stellar objects: evidence for young radio jets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The radio spectra of reddened Two Micron All Sky Survey quasi-stellar objects: evidence for young radio jets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1118957