Speaker
Description
Line-intensity mapping (LIM) of millimeter-wavelength tracers is a promising new technique for mapping cosmic structure at redshifts beyond the reach of galaxy surveys. I will describe the design and science motivation for the South Pole Telescope Summertime Line Intensity Mapper (SPT-SLIM), which seeks to demonstrate the use of on-chip spectrometers based on microwave kinetic inductance detectors (MKIDs) for LIM observations of CO at z~1-3. The design of SPT-SLIM is enabled by key technical developments, including MKID-coupled R=300 filter-bank spectrometers between 120-180 GHz, as well as a new low-cost, high-throughput MKID readout architecture based on the ICE platform. When deployed in the 2022-23 austral summer, SPT-SLIM will produce strong constraints on the CO power spectrum, while developing the experimental and observational techniques needed to use LIM as a cosmological probe in future survey instruments.
| Are you are a member of the APS Division of Particles and Fields? | Yes |
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