Optimization of multi-resolution observation strategies for cosmic microwave background experiments
Abstract
Cosmic microwave background (CMB) observations are increasingly performed by using a combination of both small aperture telescopes (SATs) and large aperture telescopes (LATs) to extract information across a wide variety of angular scales. The observation strategy of the telescopes must balance the restrictions of the observing site, instrument constraints, and a variety of science goals. We present a general framework for simulating the performance of different observation strategies. Using this framework, we focus primarily on the inflationary science goal and determine the optimal LAT coverage for delensing SAT measurements and present a novel deep scan strategy for an experiment in Chile that improves observation efficiency in the deepest 3% of the sky by 26%. Finally, we present considerations for future surveys to consider to further increase their observing efficiency.
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BibTeX
@misc{simon2026optimization,
title = {{Optimization of multi-resolution observation strategies for cosmic microwave background experiments}},
author = {Sara M Simon and Jacques Delabrouille and Julien Carron and Reijo Keskitalo and Darcy R Barron and Shamik Ghosh and Katie Dalton},
howpublished = {HAL},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.20929},
eprint = {2610.20929},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05842455v1},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Optimization of multi-resolution observation strategies for cosmic microwave background experiments
AU - Sara M Simon
AU - Jacques Delabrouille
AU - Julien Carron
AU - Reijo Keskitalo
AU - Darcy R Barron
AU - Shamik Ghosh
AU - Katie Dalton
PY - 2026
DA - 2026/10/14
PB - HAL
DO - 10.48550/arxiv.2610.20929
UR - https://hal.science/hal-05842455v1
AB - Cosmic microwave background (CMB) observations are increasingly performed by using a combination of both small aperture telescopes (SATs) and large aperture telescopes (LATs) to extract information across a wide variety of angular scales. The observation strategy of the telescopes must balance the restrictions of the observing site, instrument constraints, and a variety of science goals. We present a general framework for simulating the performance of different observation strategies. Using this framework, we focus primarily on the inflationary science goal and determine the optimal LAT coverage for delensing SAT measurements and present a novel deep scan strategy for an experiment in Chile that improves observation efficiency in the deepest 3% of the sky by 26%. Finally, we present considerations for future surveys to consider to further increase their observing efficiency.
ER -