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 […]


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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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