The Cepheid Distance to the Narrow-Line Seyfert 1 Galaxy NGC 4051

Kavli Affiliate: Michael M. Fausnaugh | First 5 Authors: Wenlong Yuan, Lucas M. Macri, Bradley M. Peterson, Adam G. Riess, Michael M. Fausnaugh | Summary: We derive a distance of $D = 16.6 pm 0.3$~Mpc ($mu=31.10pm0.04$~mag) to the archetypal narrow-line Seyfert 1 galaxy NGC 4051 based on Cepheid Period–Luminosity relations and new Hubble Space Telescope […]


Continue.. The Cepheid Distance to the Narrow-Line Seyfert 1 Galaxy NGC 4051

Elliptical accretion disk as a model for tidal disruption events

Kavli Affiliate: Fukun Liu | First 5 Authors: Fukun Liu, Chunyang Cao, Marek A. Abramowicz, Maciek Wielgus, Rong Cao | Summary: Elliptical accretion disk models for tidal disruption events (TDEs) have been recently proposed and independently developed by two groups. Although these two models are characterized by a similar geometry, their physical properties differ considerably. […]


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Ultra-Narrow TaS2 Nanoribbons

Kavli Affiliate: Alex Zettl | First 5 Authors: Jeffrey D. Cain, Sehoon Oh, Amin Azizi, Scott Stonemeyer, Mehmet Dogan | Summary: Imposing additional confinement in two-dimensional (2D) materials can yield further control over the associated electronic, optical, and topological properties. However, synthesis of ultra-narrow nanoribbons (NRs) remains a challenge, particularly for the transition metal dichalcogenides […]


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Joint Suzaku and Chandra observations of the MKW4 galaxy group out to the virial radius

Kavli Affiliate: Eric Miller | First 5 Authors: Arnab Sarkar, Yuanyuan Su, Scott Randall, Fabio Gastaldello, Isabella Trierweiler | Summary: We present joint Suzaku and Chandra observations of MKW4. With a global temperature of 1.6 keV, MKW4 is one of the smallest galaxy groups that have been mapped in X-rays out to the virial radius. […]


Continue.. Joint Suzaku and Chandra observations of the MKW4 galaxy group out to the virial radius

Toward volume manufacturing of high-performance soft x-ray critical-angle transmission gratings

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Ralf K. Heilmann, Alexander R. Bruccoleri, Jungki Song, Matthew T. Cook, James A. Gregory | Summary: High-resolution ($R = lambda /Delta lambda > 2000$) x-ray absorption and emission line spectroscopy in the soft x-ray band is a crucial diagnostic for the exploration of the properties of […]


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The Simons Observatory: Magnetic Sensitivity Measurements of Microwave SQUID Multiplexers

Kavli Affiliate: Shawn Henderson | First 5 Authors: Eve M. Vavagiakis, Zeeshan Ahmed, Aamir Ali, Kam Arnold, Jason Austermann | Summary: The Simons Observatory (SO) will be a cosmic microwave background (CMB) survey experiment with three small-aperture telescopes and one large-aperture telescope, which will observe from the Atacama Desert in Chile. In total, SO will […]


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Transferring Orbital Angular Momentum to an Electron Beam Reveals Toroidal and Chiral Order

Kavli Affiliate: Sol M. Gruner | First 5 Authors: Kayla X. Nguyen, Yi Jiang, Michael C. Cao, Prafull Purohit, Ajay K. Yadav | Summary: Orbital angular momentum and torque transfer play central roles in a wide range of magnetic textures and devices including skyrmions and spin-torque electronics(1-4). Analogous topological structures are now also being explored […]


Continue.. Transferring Orbital Angular Momentum to an Electron Beam Reveals Toroidal and Chiral Order

Transferring Orbital Angular Momentum to an Electron Beam Reveals Toroidal and Chiral Order

Kavli Affiliate: Sol M. Gruner | First 5 Authors: Kayla X. Nguyen, Yi Jiang, Michael C. Cao, Prafull Purohit, Ajay K. Yadav | Summary: Orbital angular momentum and torque transfer play central roles in a wide range of magnetic textures and devices including skyrmions and spin-torque electronics(1-4). Analogous topological structures are now also being explored […]


Continue.. Transferring Orbital Angular Momentum to an Electron Beam Reveals Toroidal and Chiral Order

Building a fault-tolerant quantum computer using concatenated cat codes

Kavli Affiliate: Oskar Painter | First 5 Authors: Christopher Chamberland, Kyungjoo Noh, Patricio Arrangoiz-Arriola, Earl T. Campbell, Connor T. Hann | Summary: We present a comprehensive architectural analysis for a proposed fault-tolerant quantum computer based on cat codes concatenated with outer quantum error-correcting codes. For the physical hardware, we propose a system of acoustic resonators […]


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COVIDScholar: An automated COVID-19 research aggregation and analysis platform

Kavli Affiliate: Kristin Persson | First 5 Authors: Amalie Trewartha, John Dagdelen, Haoyan Huo, Kevin Cruse, Zheren Wang | Summary: The ongoing COVID-19 pandemic has had far-reaching effects throughout society, and science is no exception. The scale, speed, and breadth of the scientific community’s COVID-19 response has lead to the emergence of new research literature […]


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