L-function genera and applications

Kavli Affiliate: Andrei Okounkov | First 5 Authors: David Kazhdan, Andrei Okounkov, , , | Summary: We introduce equivariant L-genera associated to actions of Galois and related groups on algebraic varieties. We explain the role which these L-genera play in the spectral analysis of Eisenstein series. We also discuss the natural categorification of L-genera and […]


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Constraints on the origin of the radio synchrotron background via angular correlations

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Elisa Todarello, Marco Regis, Federico Bianchini, Jack Singal, Enzo Branchini | Summary: The origin of the radio synchrotron background (RSB) is currently unknown. Its understanding might have profound implications in fundamental physics or might reveal a new class of radio emitters. In this work, we consider the […]


Continue.. Constraints on the origin of the radio synchrotron background via angular correlations

Constraints on the origin of the radio synchrotron background via angular correlations

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Elisa Todarello, Marco Regis, Federico Bianchini, Jack Singal, Enzo Branchini | Summary: The origin of the radio synchrotron background (RSB) is currently unknown. Its understanding might have profound implications in fundamental physics or might reveal a new class of radio emitters. In this work, we consider the […]


Continue.. Constraints on the origin of the radio synchrotron background via angular correlations

Generation of Isocurvature from Curvature Inhomogeneities on Super-Horizon Scales

Kavli Affiliate: Albert Stebbins | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Here it is shown 1) how isocurvature inhomogeneities correlated on causally disconnected (super-horizon) scales are generated from curvature inhomogeneities which are known to be correlated on these scales 2) that super-horizon isocurvature generation is nearly inevitable for non-equilibrium chemical processes […]


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The Milky Way Tomography with Subaru Hyper Suprime-Cam. I. Halo substructures

Kavli Affiliate: Masahiro Takada | First 5 Authors: Yoshihisa Suzuki, Masashi Chiba, Yutaka Komiyama, Kohei Hayashi, Masayuki Tanaka | Summary: We analyze the photometric data in the Wide layer of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) over $sim 1,200$ deg$^{2}$ to uncover new halo substructures beyond the distance, $D_{odot}sim$ 30 kpc, from the Sun. […]


Continue.. The Milky Way Tomography with Subaru Hyper Suprime-Cam. I. Halo substructures

The Milky Way Tomography with Subaru Hyper Suprime-Cam. I. Halo substructures

Kavli Affiliate: Masahiro Takada | First 5 Authors: Yoshihisa Suzuki, Masashi Chiba, Yutaka Komiyama, Kohei Hayashi, Masayuki Tanaka | Summary: We analyze the photometric data in the Wide layer of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) over $sim 1,200$ deg$^{2}$ to uncover new halo substructures beyond the distance, $D_{odot}sim$ 30 kpc, from the Sun. […]


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Revealing Impact of Critical Stellar Central Density on Galaxy Quenching through Cosmic Time

Kavli Affiliate: Yingjie Peng | First 5 Authors: Bingxiao Xu, Yingjie Peng, , , | Summary: In the previous work of Xu & Peng (2021), we investigated the structural and environmental dependence on quenching in the nearby universe. In this work we extend our investigations to higher redshifts by combining galaxies from SDSS and ZFOURGE […]


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Domain Adaptation for Measurements of Strong Gravitational Lenses

Kavli Affiliate: Brian Nord | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Upcoming surveys are predicted to discover galaxy-scale strong lenses on the order of $10^5$, making deep learning methods necessary in lensing data analysis. Currently, there is insufficient real lensing data to train deep learning algorithms, but the alternative of training […]


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Dark Matter Isocurvature from Curvature

Kavli Affiliate: Wayne Hu | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Isocurvature fluctuations, where the relative number density of particle species spatially varies, can be generated from initially adiabatic or curvature fluctuations if the various species fall out of or were never in thermal equilibrium. The freezing of the thermal relic […]


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