CMB Lensing Reconstruction Using Two Years of Temperature Data from the SPT-3G Summer Survey
Year: 2026
Type: preprint
Abstract: We present the first reconstruction of the cosmic microwave background (CMB) lensing potential from the SPT-3G Summer survey using two years of temperature data. The Summer survey has a total area of approximately 2640 deg$^2$, split into three fields covering 1210, 570, and 860 deg$^2$, respectively. A joint analysis of the three Summer fields yields a lensing amplitude of $A^{\rm comb} = 1.014 \pm 0.053$ relative to a fiducial Planck 2018 $Λ$CDM cosmology for the multipole range $50 < L < 2000$. These early results from the SPT-3G Summer survey highlight the potential for increasing the signal-to-noise ratio when combining the Summer fields with the SPT-3G Main and Wide fields for a total SPT-3G survey area of $\sim$ 10,000 deg$^2$.
Source: arXiv (Cornell University)
Authors: Levy, K., Raghunathan, S., Guidi, F., Li, Y., Anderes, E., Anderson, A. J., Ansarinejad, B., Archipley, M., Balkenhol, L., Barron, D. R., Benabed, K., Bender, A. N., Benson, B. A., Bianchini, F., Bleem, L. E., Bocquet, S., Bouchet, F. R., Camphuis, E., Campitiello, M. G., Carlstrom, J. E., Carron, J., Chang, C. L., Chichura, P. M., Chokshi, A., Chou, T. -L., Coerver, A., Crawford, T. M., Daley, C., de Haan, T., Dibert, K. R., Dobbs, M. A., Doohan, M., Dutcher, D., Feng, C., Ferguson, K. R., Ferree, N. C., Fichman, K., Foster, A., Galli, S., Gambrel, A. E., Gao, A. K., Ge, F., Guns, S., Halverson, N. W., Hivon, E., Holder, G. P., Holzapfel, W. L., Hood, J. C., Hryciuk, A., Huang, N., Jhaveri, T., Kéruzoré, F., Khalife, A. R., Knox, L., Kornoelje, K., Kuo, C. -L., Lowitz, A. E., Lu, C., Lynch, G. P., Maccarone, T. J., Maniyar, A. S., Martsen, E. S., Menanteau, F., Millea, M., Montgomery, J., Nakato, Y., Natoli, T., Ouellette, A., Pan, Z., Paschos, P., Phadke, K. A., Pollak, A. W., Prabhu, K., Quan, W., Rahimi, M., Rahlin, A., Reichardt, C. L., Rouble, M., Ruhl, J. E., Oliveira, A. C. Silva, Simpson, A., Sobrin, J. A., Stark, A. A., Stephen, J., Tandoi, C., Trendafilova, C., Vieira, J. D., Vieregg, A. G., Vitrier, A., Wan, Y., Whitehorn, N., Wu, W. L. K., Young, M. R., Zebrowski, J. A.
Institutions: The University of Melbourne, National Center for Supercomputing Applications, University of California, Davis, Centre National de la Recherche Scientifique, Institut d'Astrophysique de Paris, Sorbonne Université, University of Chicago, University of New Mexico, Ludwig-Maximilians-Universität München, Argonne National Laboratory, University of Geneva, Istituto Ricerche Solari Locarno, Università della Svizzera italiana, University of California, Berkeley, University of Illinois Urbana-Champaign, Université Paris Cité, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Université Paris-Saclay, Astrophysique, Instrumentation et Modélisation, National Taiwan University, Canadian Institute for Advanced Research, Trottier Space Institute at McGill, McGill University, Princeton University, California Institute of Technology, Texas Tech University, University of California, Los Angeles, University of Colorado Boulder, University of Colorado System, Center for Astrophysics Harvard & Smithsonian, NSF-Simons AI Institute for the Sky, Case Western Reserve University, Villanova University, Michigan State University, Stanford University, Fermi National Accelerator Laboratory, High Energy Accelerator Research Organization
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, University of Chicago, National Centre for Supercomputing Applications, European Commission, University of Illinois at Urbana-Champaign, Office of Science, University of California, Davis, Australian Research Council, High Energy Physics, Institute for Digital Research and Education, University of California, Los Angeles, Argonne National Laboratory, Fermilab, SLAC National Accelerator Laboratory
Awards: G102163711, G1055550527, G107546177, G1229526393, G1313983767, G1664757510, G2011917337, G2287611682, G2371548206, G2376186588, G262532246, G262962599, Uncovering New Physics with Advances in the Cosmic Microwave Background, Partnership to Advance Throughput Computing (PATh), G303061748, G3075337988, G4235786860, G4269941704, G4640630107, G4654690619, G495301720, G498139845, G513797252, G5281039208, Institute for Research and Innovation in Software for High Energy Physics (IRIS-HEP), G5560389312, G5570207115, G5574724152, G618388848, G6256534168, G6471802762, G6848031779, G6868755465, G6918803902, South Pole Telescope Operations and Data Products, G8382000481, G8581667079, South Pole Telescope Operations and Data Products, G8945569637, G969889393, G97770923, G993149817
OpenAlex ID: W7167690674