Abstract

Deep VLA observations of the massive cluster MACS J1447.4+0827

Myriam Latulippe (Université de Montréal)

J. Hlavacek-Larrondo (Université de Montréal), M.-L. Gendron-Marsolais (Université de Montréal), J. Sanders (Max-Planck-Institut für extraterrestrische Physik), A. Edge (Institute for Computational Cosmology, Durham University), S. Allen (Stanford University), A. Mantz (University of Chicago), A. Von Den Linden (Stanford University)

X-ray observations have shown that the distribution of gas in galaxy clusters is far from being uniform. Many clusters contain X-ray cavities, gigantic bubbles lacking Xray bright gas. Those bubbles are inflated by supersonic jets emitted by the active galactic nucleus (AGN) of the central galaxy. These jets heat the gas and offset the cooling of the intracluster medium (ICM). This process is known as AGN feedback. I will present new results obtained from the analysis of JVLA data for MACS J1447.4+0827, an extremely bright galaxy cluster at z > 0.3 which a central galaxy that is extremely luminous in the infrared and has a massive molecular gas reservoir. We have detected the jets responsible for the X-ray cavities and find the presence of a radio mini-halo, a particularly rare structure.

Mode of presentation: poster