GBT26A-456

Probing pressure and feedback in Porphyrion's large-scale halo

Abstract

Porphyrion, at ~7 Mpc, is the largest known pair of supermassive black hole jets and constitutes an unprecedented feedback system to the Cosmic Web. However, at z = 0.9, many physical properties of the jets and their large-scale surroundings remain poorly constrained. If more such systems exist, which upcoming radio interferometers could detect, they may have a cosmologically significant impact on the thermodynamics of cosmic filaments and the magnetisation of cosmic voids. The main uncertainty in modelling the dynamics of this jet system is the nature of the large-scale halo in the centre. Through GBT/MUSTANG-2, we intend to measure the pressure profile of the cluster halo in which the host galaxy and inner jets likely lie embedded. This allows us to establish the jet power and age of the system, and thus the total energy output.
Additionally, we will attempt to measure the SZ effect induced by thermal electrons in the cocoon and shocked ambient medium around the spine of this spectacular jet system.

Investigators

Name	Institution
Martijn Oei *	Leiden, University of; California Institute of Technology
Joshiwa van Marrewijk	Leiden, University of
Simon Dicker	Pennsylvania, University of
Luca Di Mascolo	Kapteyn Astronomical Institute; Max-Planck-Institut für Astrophysik; Trieste, Università degli Studi di
Emily Moravec	Green Bank Observatory
Tony Mroczkowski	Institut de Ciències de l'Espai
Eleonora Barbavara	Roma La Sapienza, Università degli Studi di
Saianeesh Haridas	Pennsylvania, University of
IAN LOWE	Arizona, University of; Pennsylvania, University of
Brian Mason	National Radio Astronomy Observatory
John Orlowski-Scherer	Pennsylvania, University of; McGill University
Charles Romero	Pennsylvania, University of; Virginia, University of; Center for Astrophysics | Harvard & Smithsonian
Giovanni Isopi	Roma La Sapienza, Università degli Studi di
Reinout van Weeren	Center for Astrophysics | Harvard & Smithsonian; Leiden, University of
M.H. Hardcastle	Hertfordshire, University of
Jonathan Sievers	Toronto, University of; McGill University; Princeton University; KwaZulu-Natal, University of
Craig Sarazin	Virginia, University of
Mark Devlin	Pennsylvania, University of
Huub Rottgering	Leiden, University of

* indicates the PI