SPT-3G: Overview of the Main and Wide Survey Galaxy Cluster Catalogs

Galaxy clusters, particularly at high redshift (z>1), are an excellent cosmological probe of large-scale structure formation. The thermal Sunyaev-Zeldovich (tSZ) effect allows millimeter-wave observatories to make unbiased detections of clusters without limitations due to magnitude dimming at higher redshift as in optical and X-ray surveys. The South Pole Telescope (SPT) is a 10-meter primary-diameter observatory optimized for low-noise, arcminute-scale resolution mm-wave science, making it a great instrument for tSZ cluster detection. The SPT third generation receiver (SPT-3G) has been observing a 1500 square degree "Main" field since 2018, achieving a coadded noise level of <2 uK-arcmin, referring to the sensitivity of the equivalent fluctuation in the CMB blackbody temperature. In 2024, SPT-3G was used to conduct a "Wide" survey that brought the total measured sky area by SPT-3G to over 10,000 square degrees to a coadded noise level of <9 uK-arcmin. I will present early and upcoming results of the SPT-3G cluster analyses from these Main and Wide surveys. These SPT-3G cluster samples will be useful to constrain cosmology through measurements of the cluster abundance and correlation function across a wide redshift range, as well as cross-correlations with optical, near-infrared, and X-ray cluster catalogs from DES, LSST, Euclid, and eRosita.