Report of the Topical Group on Cosmic Probes of Dark Matter for Snowmass 2021

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Alex Drlica-Wagner, Chanda Prescod-Weinstein, Hai-Bo Yu, Andrea Albert, Arka Banerjee | Summary: Cosmological and astrophysical observations currently provide the the only robust, positive evidence for dark matter. Cosmic probes of dark matter, which seek to determine the fundamental properties of dark matter through observations of the […]


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The Absolute Magnitudes of 1991T-like Supernovae

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: M. M. Phillips, C. Ashall, Christopher R. Burns, Carlos Contreras, L. Galbany | Summary: 1991T-like supernovae are the luminous, slow-declining extreme of the Branch shallow-silicon (SS) subclass of Type Ia supernovae. They are distinguished by extremely weak Ca II H & K and Si II $lambda6355$ […]


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Probing the Galactic halo with RR Lyrae stars $-$ III. The chemical and kinematic properties of the stellar halo

Kavli Affiliate: Huawei Zhang | First 5 Authors: Gaochao Liu, Yang Huang, Sarah Ann Bird, Huawei Zhang, Fei Wang | Summary: Based on a large spectroscopic sample of $sim$ 4,300 RR Lyrae stars with metallicity, systemic radial velocity and distance measurements, we present a detailed analysis of the chemical and kinematic properties of the Galactic […]


Continue.. Probing the Galactic halo with RR Lyrae stars $-$ III. The chemical and kinematic properties of the stellar halo

Conditional HI mass functions and the HI-to-halo mass relation in the local Universe

Kavli Affiliate: Jing Wang | First 5 Authors: Xiao Li, Cheng Li, H. J. Mo, Ting Xiao, Jing Wang | Summary: We present a new HI mass estimator which relates the HI-to-stellar mass ratio to four galaxy properties: stellar surface mass density, color index $u-r$, stellar mass and concentration index, with the scatter of individual […]


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Monolith: Real Time Recommendation System With Collisionless Embedding Table

Kavli Affiliate: Ke Wang | First 5 Authors: Zhuoran Liu, Leqi Zou, Xuan Zou, Caihua Wang, Biao Zhang | Summary: Building a scalable and real-time recommendation system is vital for many businesses driven by time-sensitive customer feedback, such as short-videos ranking or online ads. Despite the ubiquitous adoption of production-scale deep learning frameworks like TensorFlow […]


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Noise2Astro: Astronomical Image Denoising With Self-Supervised NeuralNetworks

Kavli Affiliate: Brian Nord | First 5 Authors: Yunchong Zhang, Brian Nord, Amanda Pagul, Michael Lepori, | Summary: In observational astronomy, noise obscures signals of interest. Large-scale astronomical surveys are growing in size and complexity, which will produce more data and increase the workload of data processing. Developing automated tools, such as convolutional neural networks […]


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Spin it as you like: the (lack of a) measurement of the spin tilt distribution with LIGO-Virgo-KAGRA binary black holes

Kavli Affiliate: Salvatore Vitale | First 5 Authors: Salvatore Vitale, Sylvia Biscoveanu, Colm Talbot, , | Summary: The growing set of gravitational-wave sources is being used to measure the properties of the underlying astrophysical populations of compact objects, black holes and neutron stars. Most of the detected systems are black hole binaries. While much has […]


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Snowmass Theory Frontier: Astrophysics and Cosmology

Kavli Affiliate: W. L. Kimmy Wu | First 5 Authors: Daniel Green, Joshua T. Ruderman, Benjamin R. Safdi, Jessie Shelton, Ana AchĂșcarro | Summary: We summarize progress made in theoretical astrophysics and cosmology over the past decade and areas of interest for the coming decade. This Report is prepared as the TF09 "Astrophysics and Cosmology" […]


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Snowmass Theory Frontier: Astrophysics and Cosmology

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Daniel Green, Joshua T. Ruderman, Benjamin R. Safdi, Jessie Shelton, Ana AchĂșcarro | Summary: We summarize progress made in theoretical astrophysics and cosmology over the past decade and areas of interest for the coming decade. This Report is prepared as the TF09 "Astrophysics and Cosmology" topical […]


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Multi-areal neural dynamics encode human decision making

Kavli Affiliate: Edward Chang | Authors: Jacqueline A Overton, Karen A Moxon, Matthew P Stickle, Logan M Peters, Jack J Lin, Edward F Chang, Robert T Knight, Ming Hsu and Ignacio Saez | Summary: Abstract Value-based decision-making involves multiple cortical and subcortical brain areas, but the exact nature of neural activity underlying choice behavior has […]


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