October 2021 – Page 7 – Kavli Institute Pre-Print Publications

HIFlow: Generating Diverse HI Maps and Inferring Cosmology while Marginalizing over Astrophysics using Normalizing Flows

Posted by klaurent October 6, 2021Tokyo

Kavli Affiliate: David N. Spergel | First 5 Authors: Sultan Hassan, Francisco Villaescusa-Navarro, Benjamin Wandelt, David N. Spergel, Daniel Anglés-Alcázar | Summary: A wealth of cosmological and astrophysical information is expected from many ongoing and upcoming large-scale surveys. It is crucial to prepare for these surveys now and develop tools that can efficiently extract most […]

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{sc HIFlow}: Generating Diverse HI Maps and Inferring Cosmology while Marginalizing over Astrophysics using Normalizing Flows

Posted by klaurent October 6, 2021Tokyo

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HIFlow: Generating Diverse HI Maps Conditioned on Cosmology using Normalizing Flow

Posted by klaurent October 6, 2021Tokyo

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Relative Entropy Gradient Sampler for Unnormalized Distributions

Posted by klaurent October 6, 2021Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Xingdong Feng, Yuan Gao, Jian Huang, Yuling Jiao, Xu Liu | Summary: We propose a relative entropy gradient sampler (REGS) for sampling from unnormalized distributions. REGS is a particle method that seeks a sequence of simple nonlinear transforms iteratively pushing the initial samples from a reference distribution […]

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Derived categories of Quot schemes of locally free quotients via categorified Hall products

Posted by klaurent October 6, 2021Tokyo

Kavli Affiliate: Yukinobu Toda | First 5 Authors: Yukinobu Toda, , , , | Summary: We prove Qingyuan Jiang’s conjecture on semiorthogonal decompositions of derived categories of Quot schemes of locally free quotients. The author’s result on categorified Hall products for Grassmannian flips is applied to prove the conjecture. | Search Query: ArXiv Query: search_query=au:”Yukinobu […]

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Sparse metapiles for shear wave attenuation in half-spaces

Posted by October 5, 2021Caltech

Kavli Affiliate: Chiara Daraio | First 5 Authors: Paolo Celli, Ilaria Nunzi, Andrea Calabrese, Stefano Lenci, Chiara Daraio | Summary: We show that shear waves traveling towards the surface of a half-space medium can be attenuated via buried one-dimensional arrays of resonators — here called metapiles — arranged according to sparse patterns around a site […]

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Analyzing the Intrinsic Magnetic Field in the Galactic Center Radio Arc

Posted by klaurent October 5, 2021Stanford

Kavli Affiliate: R. Morris | First 5 Authors: Dylan M. Paré, Cormac R. Purcell, Cornelia C. Lang, Mark R. Morris, James A. Green | Summary: The Radio Arc is a system of organized non-thermal filaments (NTFs) located within the Galactic Center (GC) region of the Milky Way. Recent observations of the Radio Arc NTFs revealed […]

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The High Latitude Spectroscopic Survey on the Nancy Grace Roman Space Telescope

Posted by klaurent October 5, 2021Tokyo

Kavli Affiliate: David Spergel | First 5 Authors: Yun Wang, Zhongxu Zhai, Anahita Alavi, Elena Massara, Alice Pisani | Summary: The Nancy Grace Roman Space Telescope will conduct a High Latitude Spectroscopic Survey (HLSS) over a large volume at high redshift, using the near-IR grism (1.0-1.93 $mu$m, $R=435-865$) and the 0.28 deg$^2$ wide field camera. […]

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Simultaneous Constraints on the Star Formation History and Nucleosynthesis of Sculptor dSph

Posted by klaurent October 4, 2021Chicago

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Mithi A. C. de los Reyes, Evan N. Kirby, Alexander P. Ji, Evan H. Nuñez, | Summary: We demonstrate that using up to seven stellar abundance ratios can place observational constraints on the star formation histories (SFHs) of Local Group dSphs, using the Sculptor dSph as […]

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An Infrared Search for Kilonovae with the WINTER Telescope. I. Binary Neutron Star Mergers

Posted by klaurent October 4, 2021MIT

Kavli Affiliate: Nathan P. Lourie | Summary:The Wide-Field Infrared Transient Explorer (WINTER) is a new 1 $textdeg^2$ seeing-limited time-domain survey instrument designed for dedicated near-infrared follow-up of kilonovae from binary neutron star (BNS) and neutron star-black hole mergers. WINTER will observe in the near-infrared Y, J, and short-H bands (0.9-1.7 microns, to $textJ_AB=21$ magnitudes) on […]

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