Report of the Topical Group on Dark Energy and Cosmic Acceleration: Complementarity of Probes and New Facilities for Snowmass 2021

Posted by klaurent Chicago

Kavli Affiliate: Lindsey E. Bleem | First 5 Authors: Brenna Flaugher, Vivian Miranda, David J. Schlegel, Adam J. Anderson, Felipe Andrade-Oliveira | Summary: The mechanism(s) driving the early- and late-time accelerated expansion of the Universe represent one of the most compelling mysteries in fundamental physics today. The path to understanding the causes of early- and […]


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Report of the Topical Group on Cosmic Frontier 5 Dark Energy and Cosmic Acceleration: Cosmic Dawn and Before for Snowmass 2021

Posted by klaurent Chicago

Kavli Affiliate: Clarence L. Chang | First 5 Authors: Clarence L. Chang, Laura Newburgh, Deirdre Shoemaker, Stefan W. Ballmer, Daniel Green | Summary: This report summarizes the envisioned research activities as gathered from the Snowmass 2021 CF5 working group concerning Dark Energy and Cosmic Acceleration: Cosmic Dawn and Before. The scientific goals are to study […]


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Report of the Topical Group on Cosmic Frontier 5 Dark Energy and Cosmic Acceleration: Cosmic Dawn and Before for Snowmass 2021

Posted by Chicago

Kavli Affiliate: Clarence L. Chang | First 5 Authors: Clarence L. Chang, Laura Newburgh, Deirdre Shoemaker, Stefan W. Ballmer, Daniel Green | Summary: This report summarizes the envisioned research activities as gathered from the Snowmass 2021 CF5 working group concerning Dark Energy and Cosmic Acceleration: Cosmic Dawn and Before. The scientific goals are to study […]


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

Posted by klaurent Stanford

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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Milky Way Zero-Point Calibration of the JAGB Method: Using Thermally Pulsing AGB Stars in Galactic Open Clusters

Posted by Chicago

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Barry F. Madore, Wendy L. Freedman, Abigail J. Lee, Kayla Owens, | Summary: We present a new calibration of the J-band absolute magnitude of the JAGB method based on thermally pulsing AGB stars that are members of Milky Way open clusters, having distances and reddenings, independently […]


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The Absolute Magnitudes of 1991T-like Supernovae

Posted by klaurent Chicago

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

Posted by klaurent Peking

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 […]


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

Posted by klaurent Peking

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

Posted by klaurent Peking

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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Report of the Topical Group on Particle Dark Matter for Snowmass 2021

Posted by dbos Stanford

Kavli Affiliate: Daniel S. Akerib | First 5 Authors: Jodi Cooley, Tongyan Lin, W. Hugh Lippincott, Tracy R. Slatyer, Tien-Tien Yu | Summary: This report summarizes the findings of the CF1 Topical Subgroup to Snowmass 2021, which was focused on particle dark matter. One of the most important scientific goals of the next decade is […]


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