activity
19972022
most citedParsec-Scale Blazar Monitoring: Proper Motions

135 citations · 517 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.GA2022★ 6 cited

The X-shaped radio galaxy J0725+5835 is associated with an AGN pair

Xiaolong Yang, Jialu Ji, Ravi Joshi +6

X-shaped radio galaxies (XRGs) are those that exhibit two pairs of unaligned radio lobes (main radio lobes and "wings"), one of the promising models for the peculiar morphology is…

astro-ph.GA2017★ 28 cited

What Are "X-Shaped" Radio Sources Telling Us? II. Properties of a Sample of 87

Lakshmi Saripalli, David H. Roberts

In an earlier paper we presented Jansky Very Large Array multi-frequency, multi-array continuum imaging of a unique sample of low axial-ratio radio galaxies. In this paper, the sec…

astro-ph.GA2017★ 20 cited

What Are "X-Shaped" Radio Sources Telling Us? I. Very Large Array Imaging of a Large Sample of Low Axial Ratio Radio Sources

David H. Roberts, Lakshmi Saripalli, Kevin X. Wang +5

We present historical VLA and Jansky Very Large Array multi-frequency multi-array radio continuum imaging of a unique sample of 100 radio sources that have been selected on the bas…

astro-ph.GA2015★ 11 cited

The Abundance of X-Shaped Radio Sources: Implications for the Gravitational Wave Background

David H. Roberts, Lakshmi Saripalli, Ravi Subrahmanyan

Coalescence of super massive black holes (SMBH's) in galaxy mergers is potentially the dominant contributor to the low frequency gravitational wave background (GWB). IIt was propos…

astro-ph.GA2015★ 21 cited

The Abundance of X-Shaped Radio Sources I. VLA Survey of 52 Sources With Off-Axis Distortions

David H. Roberts, Jake P. Cohen, Jing Lu +2

Cheung identified a sample of 100 candidate X-shaped radio galaxies using the NRAO FIRST survey; these are small-axial-ratio extended radio sources with off-axis emission. Here we…

astro-ph.HE2012★ 3 cited

The Structure & Linear Polarization of the Kiloparsec-Scale Jet of the Quasar 3C\,345

David H. Roberts, John F. C. Wardle, Valerie V. Marchenko

Deep Very Large Array imaging of the quasar 3C\,345 at 4.86 and 8.44 GHz has been used to study the structure and linear polarization of its radio jet on scales ranging from 2 to 3…