Collimation of the kiloparsec-scale radio jets in NGC 2663
Abstract
We present the discovery of highly collimated radio jets spanning a total of 355 kpc around the nearby elliptical galaxy NGC 2663, and the possible first detection of recollimation on kiloparsec scales. The small distance to the galaxy (∼28.5 Mpc) allows us to resolve portions of the jets to examine their structure. We combine multiwavelength data: radio observations by the Murchison Widefield Array (MWA), the Australian Square Kilometre Array Pathfinder (ASKAP) and the Australia Telescope Compact Array (ATCA), and X-ray data from Chandra, Swift, and SRG/eROSITA. We present intensity, rotation measure, polarization, spectral index, and X-ray environment maps. Regions of the southern jet show simultaneous narrowing and brightening, which can be interpreted as a signature of the recollimation of the jet by external, environmental pressure, though it is also consistent with intermittent active galactic nuclei or complex internal jet structure. X-ray data suggest that the environment is extremely poor; if the jet is indeed recollimating, the large recollimation scale (40 kpc) is consistent with a slow jet in a low-density environment.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 12, 2022
- Source ID
- 10.1093/mnras/stac2012
Entities
People
- A. W. Hotan
- Bärbel Koribalski
- C. D. Tremblay
- Dirk Grupe
- Ettore Carretti
- Gavin Rowell
- George Heald
- H. Andernach
- Jordan Collier
- Joshua Marvil
- Kirpal Nandra
- Lawrence Rudnick
- Luke Barnes
- Mara Salvato
- Matthew Whiting
- Miroslav Filipovic
- Oleg Titov
- P. Manojlović
- R. Z. E. Alsaberi
- Ray P. Norris
- S G H Waddell
- Sabrina Einecke
- Stanislav Shabala
- T H Reiprich
- T. G. Pannuti
- T. J. Galvin
- Thomas H. Jarrett
- Velibor Velović
Organizations
- Associated Universities, Inc.
- Curtin University
- Geoscience Australia
- German Aerospace Center
- Leibniz Institute for Astrophysics Potsdam
- Ludwig-Maximilians-Universität München
- Max Planck Society
- Morehead State University
- National Radio Astronomy Observatory
- National Science Foundation
- Russian Academy of Sciences
- SETI Institute
- Swinburne University of Technology
- United States Naval Observatory
- Universidad de Guanajuato
- University of Adelaide
- University of Bonn
- University of Cape Town
- University of Minnesota
- University of Tasmania
- Western Sydney University