A VLA–GMRT Look At 11 Powerful Fr II Quasars

Simple item page
dc.contributor.authorVaddi, S.
dc.contributor.authorKharb, P.
dc.contributor.authorDaly, R. A.
dc.contributor.authorO’Dea, C. P.
dc.contributor.authorBaum, S. A.
dc.contributor.authorDeo, D. K.
dc.contributor.authorBarbusca, T. C.
dc.contributor.authorMurali, Chintak
dc.contributor.utdAuthorMurali, Chintak
dc.date.accessioned2020-07-21T21:00:14Z
dc.date.available2020-07-21T21:00:14Z
dc.date.issued2018-12-27
dc.description.abstractWe present results from 1.4 and 5 GHz observations at matched resolution with the Karl G. Jansky Very Large Array (VLA) of 11 powerful 3C FR II quasars. We examine the 11 quasars along with a sample of 13 narrow-line FR II radio galaxies and find that radio-loud unification largely holds but environmental effects cannot be ignored. The radio core prominence, largest linear size, and axial ratio parameter values indicate that quasars are at relatively smaller angles compared to the radio galaxies and thus probe orientation. Lack of correlation between statistical orientation indicators such as misalignment angle and radio core prominence, and larger lobe distortions in quasars compared to radio galaxies suggest that intrinsic/environment effects are also at play. Some of 150 MHz observations with the TGSS–GMRT reveal peculiar lobe morphologies in these FR II sources, suggesting complex past lives and possibly restarted AGN activity. Using the total 150 MHz flux density we estimate the time-averaged jet kinetic power in these sources and this ranges from (1–38) × 10⁻⁴⁵ erg s⁻¹, with 3C 470 having the highest jet kinetic power. © 2018 The Author(s).
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.identifier.bibliographicCitationVaddi, S., P. Kharb, R. A. Daly, C. P. O’Dea, et al. 2019. "A VLA–GMRT look at 11 powerful FR II quasars." Monthly Notices of the Royal Astronomical Society 484(1): 385-408, doi: 10.1093/mnras/sty3494
dc.identifier.issn0035-8711
dc.identifier.issue1
dc.identifier.urihttp://dx.doi.org/10.1093/mnras/sty3494
dc.identifier.urihttps://hdl.handle.net/10735.1/8723
dc.identifier.volume484
dc.language.isoen
dc.publisherOxford University Press
dc.rights©2018 The Authors
dc.source.journalMonthly Notices of the Royal Astronomical Society
dc.subjectGalaxies
dc.subjectRed shift
dc.subjectQuasars
dc.subjectInterferometry
dc.titleA VLA–GMRT Look At 11 Powerful Fr II Quasars
dc.type.genrearticle

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
JECS-2061-261674.33.pdf
Size:
9.44 MB
Format:
Adobe Portable Document Format
Description:
Article
Download

Collections

JECS Staff and Student Research