collaborators

5 papers

astro-ph.GA2025

VLA Observations at 6 and 19 GHz of a Complete Sample of Radio Loud Quasars with redshifts between 2.5 and 5.28: II. Sample definition, radio images, and analysis

John F. C. Wardle, Mark Birkinshaw, Diana M. Worrall +4

We present high resolution (subarcsecond) observations at 6.2 and 19.6 GHz made with the Karl G. Jansky Very Large Array of 113 radio-loud quasars that form a complete flux limited…

astro-ph.HE2025

Investigating the emission mechanism in the spatially-resolved jet of two z 3 radio-loud quasars

Jaya Maithil, Daniel A. Schwartz, Aneta Siemiginowska +9

This study focuses on high-redshift, z > 3, quasars where resolved X-ray jets remain underexplored in comparison to nearby sources. Building upon previous work, we identify and con…

astro-ph.GA2025

The JWST View of Cygnus A: Jet-Driven Coronal Outflow with a Twist

Patrick M. Ogle, B. Sebastian, A. Aravindan +29

We present first results from James Webb Space Telescope (JWST) Near-Infrared Spectrograph (NIRSpec), Mid-Infrared Instrument (MIRI), and Keck Cosmic Webb Imager (KCWI) integral fi…

astro-ph.IM2024

DRUID: Source Detection and Deblending in Astronomical Images with Persistent Homology

R. A. Shaw, S. Fotopoulou, M. Birkinshaw +2

Source detection is a vital part of any astronomical survey analysis pipeline. In addition, a versatile source finder that can recover and handle sources of all morphological types…

astro-ph.GA2024

A Multiwavelength Portrait of the 3C 220.3 Lensed System

Sóley Ó. Hyman, Belinda J. Wilkes, S. P. Willner +10

The 3C 220.3 system is a rare case of a foreground narrow-line radio galaxy ("galaxy A," ) lensing a background submillimeter galaxy (). New spe…