Kavli Affiliate: Kevin Reil | First 5 Authors: Joseph Harry Silber, Parker Fagrelius, Kevin Fanning, Michael Schubnell, Jessica Nicole Aguilar | Summary: A system of 5,020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically re-target their optical fibers every 10 – 20 minutes, each […]
Kavli Affiliate: Herman L. Marshall | First 5 Authors: Roberto Taverna, Roberto Turolla, Fabio Muleri, Jeremy Heyl, Silvia Zane | Summary: We report on the first detection of linearly polarized x-ray emission from an ultra-magnetized neutron star with the Imaging X-ray Polarimetry Explorer (IXPE). The IXPE 35 observations of the anomalous x-ray pulsar 4U 0142+61 […]
Kavli Affiliate: Jing Wang | First 5 Authors: Jing Wang, Jiahui Zou, HaiYing Wang, , | Summary: Faced with massive data, subsampling is a commonly used technique to improve computational efficiency, and using nonuniform subsampling probabilities is an effective approach to improve estimation efficiency. For computational efficiency, subsampling is often implemented with replacement or through […]
Kavli Affiliate: Jia Liu | First 5 Authors: Huajie Cheng, Wen Han Chiu, Yaquan Fang, Yu Gao, Jiayin Gu | Summary: The Circular Electron Positron Collider (CEPC) is a large-scale collider facility that can serve as a factory of the Higgs, Z, and W bosons and is upgradable to run at the ttbar threshold. This […]
Kavli Affiliate: Jia Liu | First 5 Authors: Huajie Cheng, Wen Han Chiu, Yaquan Fang, Yu Gao, Jiayin Gu | Summary: The Circular Electron Positron Collider (CEPC) is a large-scale collider facility that can serve as a factory of the Higgs, Z, and W bosons and is upgradable to run at the ttbar threshold. This […]
Kavli Affiliate: Daniel E. Holz | First 5 Authors: Michael Zevin, Daniel E. Holz, , , | Summary: The population of binary black hole mergers identified through gravitational waves has uncovered unexpected features in the intrinsic properties of black holes in the Universe. One particularly surprising and exciting result is the possible existence of black […]
Kavli Affiliate: Daniel E. Holz | First 5 Authors: Michael Zevin, Daniel E. Holz, , , | Summary: The population of binary black hole mergers identified through gravitational waves has uncovered unexpected features in the intrinsic properties of black holes in the Universe. One particularly surprising and exciting result is the possible existence of black […]
Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Quang H. Tran, Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore, Elias K. Oakes | Summary: We determine the distance to the Sculptor Dwarf Spheroidal via three Population II stellar distance indicators: (a) the Tip of the Red Giant Branch (TRGB), (b) RR Lyrae variables […]
Kavli Affiliate: Misao Sasaki | First 5 Authors: Pisin Chen, Misao Sasaki, Dong-han Yeom, Junggi Yoon, | Summary: The information loss paradox remains unresolved ever since Hawking’s seminal discovery of black hole evaporation. In this essay, we revisit the entanglement entropy via Euclidean path integral (EPI) and allow for the branching of semi-classical histories during […]
Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Dan Kondo, Robert McGehee, Tom Melia, Hitoshi Murayama, | Summary: We present a model of self-interacting dark matter based on QCD-like theories and inspired by the proximity of $a_0(980pm 20)$ to the $Kbar{K}(990)$ threshold. Dark matter is comprised of dark pions which self-scatter via the $sigma$ resonance […]