W.L. Kimmy Wu

W. L. Kimmy Wu is a researcher at the California Institute of Technology whose work focuses on observational cosmology, with particular emphasis on the cosmic microwave background (CMB). Her research centers on extracting precise cosmological information from CMB temperature and polarization data, including gravitational lensing and delensing techniques, foreground modeling, and the use of machine learning for data analysis. She has played an active role in major international collaborations such as SPT-3G and BICEP/Keck, contributing to measurements of CMB polarization, lensing power spectra, and constraints on inflationary gravitational waves. Her work spans both methodological development—such as foreground-cleaning pipelines and simulation techniques—and scientific inference related to structure formation, dark energy, and early-universe physics. Through large-scale CMB experiments and cross-survey analyses, her research advances precision cosmology by improving the robustness and sensitivity of measurements derived from complex astrophysical data.