GBT21B-206

GBT/MUSTANG-2 view of the SZ signal from a cosmic train wreck

Abstract

We propose to observe the Train Wreck Cluster (Abell 520), a highly-disturbed system at z=0.203. This is one of the only few clusters with a clearly defined shock front. The proposed observations will provide an angularly resolved millimeter-wave view of Abell 520, allowing for the first time to use the Sunyaev-Zeldovich effect to constrain the physical and thermodynamic properties of the cluster. In particular, we aim at studying the prominent shock front and to get novel information on the mechanism of electron heating across shock fronts. Also, we will constrain the nature of several thermodynamic substructures, the most notable of which is the putative depletion layer observed at the centre of the cluster as a subtle suppression of the X-ray signal.

Investigators

Name	Institution
Charles Romero	Pennsylvania, University of; Virginia, University of; Center for Astrophysics | Harvard & Smithsonian
Emily Moravec	Green Bank Observatory; Akademie ved Ceske republiky
Tony Mroczkowski	European Southern Observatory; Institut de Ciències de l'Espai
Brian Mason	National Radio Astronomy Observatory
Simon Dicker	Pennsylvania, University of
IAN LOWE	Arizona, University of; Pennsylvania, University of
Luca Di Mascolo *	Kapteyn Astronomical Institute; Max-Planck-Institut für Astrophysik; Trieste, Università degli Studi di
Fernando Zago	McGill University
Tanay Bhandarkar	Pennsylvania, University of
Jonathan Sievers	Toronto, University of; McGill University; Princeton University; KwaZulu-Natal, University of
Danton Weil	Wellington, Victoria University of
Alexandro Saro	Trieste, Osservatorio Astronomico di
Gabriella Di Gennaro	Leiden, University of; Hamburg, Universität
Eugene Churazov	Max-Planck-Institut für Astrophysik
Craig Sarazin	Virginia, University of
Mark Devlin	Pennsylvania, University of

* indicates the PI