Optimal filters for the moving lens effect

Hotinli, Selim C.; Johnson, Matthew C.; Meyers, Joel

doi:10.1103/physrevd.103.043536

Optimal filters for the moving lens effect

Journal Article · Thu Feb 25 00:00:00 EST 2021 · Physical Review. D.

DOI:https://doi.org/10.1103/physrevd.103.043536· OSTI ID:1851332

^[1]; Johnson, Matthew C. ^[2]; Meyers, Joel ^[3]

Imperial College, London (United Kingdom); OSTI
York Univ., Toronto, ON (Canada); Perimeter Inst for Theoretical Physics, Waterloo (Canada)
Southern Methodist Univ., Dallas, TX (United States)

We assess the prospects for detecting the moving lens effect using cosmological surveys. The bulk motion of cosmological structure induces a small-scale dipolar temperature anisotropy of the cosmic microwave radiation, centered around halos and oriented along the transverse velocity field. We introduce a set of optimal filters for this signal and forecast that a high significance detection can be made with upcoming experiments. We discuss the prospects for reconstructing the bulk transverse velocity field on large scales using matched filters, finding good agreement with previous work using quadratic estimators.

View Accepted Manuscript (DOE)

Research Organization:: Southern Methodist Univ., Dallas, TX (United States)

Sponsoring Organization:: Imperial College President’s Scholarship; Ministry of Research, Innovation and Science; National Science and Engineering Research Council; Perimeter Institute Graduate Fellowship; Perimeter Institute for Theoretical Physics; Science and Economic Development Canada; USDOE Office of Science (SC)

Grant/Contract Number:: SC0010129

OSTI ID:: 1851332

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 4 Vol. 103; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Optimal filters for the moving lens effect

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