MERGHERS: An SZ-selected cluster survey with MeerKAT

K. Knowles, J. Sievers, A. Baker, John Hughes, K. Basu, M. W. Sommer, V. Bharadwaj, M. Hilton, K. Moodley, S. P. Sikhosana, F. de Gasperin, H. T. Intema, R. Deane, S. Makhathini, O. Smirnov, M. Devlin, S. Dicker, S. Stanchfield, C. Ferrari, N. OozeerC. Pfrommer, K. van der Heyden, J. Zwart

Research output: Contribution to journalConference articlepeer-review


The MeerKAT telescope will be one of the most sensitive radio arrays in the pre-SKA era. Here we discuss a low-frequency SZ-selected cluster survey with MeerKAT, the Meerkat Exploration of Relics, Giant Halos, and Extragalactic Radio Sources (MERGHERS) survey. The primary goal of this survey is to detect faint signatures of diffuse cluster emission, specifically radio halos and relics. SZ-selected cluster samples offer a homogeneous, mass-limited set of targets out to higher redshift than X-ray samples. MeerKAT is sensitive enough to detect diffuse radio emission at the faint levels expected in low-mass and high-redshift clusters, thereby enabling radio halo and relic formation theories to be tested with a larger statistical sample over a significantly expanded phase space. Complementary multiwavelength follow-up observations will provide a more complete picture of any clusters found to host diffuse emission, thereby enhancing the scientific return of the MERGHERS survey.

Original languageEnglish (US)
JournalProceedings of Science
StatePublished - 2016
Event2016 MeerKAT Science: On the Pathway to the SKA, MeerKAT 2016 - Stellenbosch, South Africa
Duration: May 25 2016May 27 2016

All Science Journal Classification (ASJC) codes

  • General


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