Redshift Evolution of the Feedback / Cooling Equilibrium in the Core of 48 SPT Galaxy Clusters: A Joint $\boldsymbol{Chandra}$-SPT-ATCA analysis ...

• Main Authors: Ruppin, F., McDonald, M., Hlavacek-Larrondo, J., Bayliss, M., Bleem, L. E., Calzadilla, M., Edge, A. C., Filipović, M. D., Floyd, B., Garmire, G., Khullar, G., Kim, K. J., Kraft, R., Mahler, G., Norris, R. P., O'Brien, A., Reichardt, C. L., Somboonpanyakul, T., Stark, A. A., Tothill, N.
• Format: Text
• Language: unknown
• Published: arXiv 2022
• Subjects: Cosmology and Nongalactic Astrophysics astro-ph.CO; FOS Physical sciences; South Pole; South pole
• Online Access: https://dx.doi.org/10.48550/arxiv.2207.13351; https://arxiv.org/abs/2207.13351

We analyze the cooling and feedback properties of 48 galaxy clusters at redshifts $0.4 < z < 1.3$ selected from the South Pole Telescope (SPT) catalogs to evolve like the progenitors of massive and well-studied systems at $z{\sim}0$. We estimate the radio power at the brightest cluster galaxy (BCG) location of each cluster from an analysis of Australia Telescope Compact Array (ATCA) data. Assuming that the scaling relation between radio power and active galactic nucleus (AGN) cavity power $P_{\mathrm{cav}}$ observed at low redshift does not evolve with redshift, we use these measurements in order to estimate the expected AGN cavity power in the core of each system. We estimate the X-ray luminosity within the cooling radius $L_{\mathrm{cool}}$ of each cluster from a joint analysis of the available $Chandra$ X-ray and SPT Sunyaev-Zel'dovich (SZ) data. This allows us to characterize the redshift evolution of the $P_{\mathrm{cav}} / L_{\mathrm{cool}}$ ratio. When combined with low-redshift results, these ... : Submitted to The Astrophysical Journal ...