SPT-SLIM: A Line Intensity Mapping Pathfinder for the South Pole Telescope
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP); Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Chicago, IL (United States)
- Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP); Univ. of Chicago, IL (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- McGill Univ., Montreal, QC (Canada). McGill Space Inst.
- Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
- Univ. of Arizona, Tucson, AZ (United States). Steward Observatory
- Univ. of Chicago, IL (United States)
- Cardiff Univ. (United Kingdom)
- Univ. of Chicago, IL (United States); Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)
- Three-Speed Logic, Inc., Victoria, BC (Canada)
The South Pole Telescope Summertime Line Intensity Mapper (SPT-SLIM) is a pathfinder experiment that will demonstrate the use of on-chip filter-bank spectrometers for mm-wave line intensity mapping (LIM). The SPT-SLIM focal plane consists of 18 dual-polarization R=300 filter-bank spectrometers covering 120-180 GHz, coupled to aluminum kinetic inductance detectors. A compact cryostat holds the detectors at 100 mK and performs observations without removing the SPT-3G receiver. SPT-SLIM will be deployed to the 10-m South Pole Telescope for observations during the 2023-24 austral summer. Furthermore, we discuss the overall instrument design, expected detector performance and sensitivity to the LIM signal from CO at 0.5 < z < 2. The technology and observational techniques demonstrated by SPT-SLIM will enable next-generation LIM experiments that constrain cosmology beyond the redshift reach of galaxy surveys.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); USDOE Laboratory Directed Research and Development (LDRD) Program
- Grant/Contract Number:
- AC02-07CH11359; AST-2108763; AST-2001802
- OSTI ID:
- 1834182
- Report Number(s):
- FERMILAB-PUB-21-649-PPD; arXiv:2111.04631; ISSN 1573-7357; oai:inspirehep.net:1963691; TRN: US2300143
- Journal Information:
- Journal of Low Temperature Physics, Vol. 209, Issue 5-6; ISSN 0022-2291
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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