Search Results - "Guan, Yilun"

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    Topics in Microwave Astronomy and Cosmology by Guan, Yilun

    Published 01-01-2021
    “…Over the past decades, precision measurements of the Cosmic Microwave Background (CMB) have led to remarkable progress in our understanding of the universe in…”
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    Dissertation
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    Distinguishing Primordial Magnetic Fields from Inflationary Tensor Perturbations in the Cosmic Microwave Background by Guan, Yilun, Kosowsky, Arthur

    Published 11-05-2022
    “…A claimed detection of cosmological tensor perturbations from inflation via B-mode polarization of the cosmic microwave background requires distinguishing…”
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    Journal Article
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    Computing Microwave Background Polarization Power Spectra from Cosmic Birefringence by Cai, Hongbo, Guan, Yilun

    Published 28-11-2021
    “…We present a new publicly available code, $\texttt{class_rot}$, which modifies $\texttt{class}$ to enable fast non-perturbative calculation of cosmic microwave…”
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    Journal Article
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    Efficient estimation of rotation-induced bias to reconstructed CMB lensing power spectrum by Cai, Hongbo, Guan, Yilun, Namikawa, Toshiya, Kosowsky, Arthur

    Published 24-08-2024
    “…The cosmic microwave background (CMB) lensing power spectrum is a powerful probe of the late-time universe, encoding valuable information about cosmological…”
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    Journal Article
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    Impact of Anisotropic Birefringence on Measuring Cosmic Microwave Background Lensing by Cai, Hongbo, Guan, Yilun, Namikawa, Toshiya, Kosowsky, Arthur

    Published 17-01-2023
    “…The power spectrum of cosmic microwave background lensing is a powerful tool for constraining fundamental physics such as the sum of neutrino masses and the…”
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    Journal Article
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    Simons Observatory: Observatory Scheduler and Automated Data Processing by Guan, Yilun, Harrington, Kathleen, Lashner, Jack, Bhimani, Sanah, Crowley, Kevin T, Galitzki, Nicholas, Ganga, Ken, Hasselfield, Matthew, Hincks, Adam D, Keating, Brian, Koopman, Brian J, Newburgh, Laura, Nguyen, David V, Silva-Feaver, Max

    Published 16-06-2024
    “…The Simons Observatory (SO) is a next-generation ground-based telescope located in the Atacama Desert in Chile, designed to map the cosmic microwave background…”
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    Journal Article
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    Can small-scale baryon inhomogeneities resolve the Hubble tension? An investigation with ACT DR4 by Thiele, Leander, Guan, Yilun, Hill, J. Colin, Kosowsky, Arthur, Spergel, David N

    Published 10-08-2021
    “…Phys. Rev. D 104, 063535 (2021) Small-scale inhomogeneities in the baryon density around recombination have been proposed as a solution to the tension between…”
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    Journal Article