July 21, 2023 – Kavli Institute Pre-Print Publications

Cosmological baryon spread and impact on matter clustering in CAMELS

Posted by klaurent July 21, 2023MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Matthew Gebhardt, Daniel Anglés-Alcázar, Josh Borrow, Shy Genel, Francisco Villaescusa-Navarro | Summary: We quantify the cosmological spread of baryons relative to their initial neighboring dark matter distribution using thousands of state-of-the-art simulations from the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) project. We show that dark […]

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Four years of Type Ia Supernovae Observed by TESS: Early Time Light Curve Shapes and Constraints on Companion Interaction Models

Posted by klaurent July 21, 2023MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: M. M. Fausnaugh, P. J. Vallely, M. A. Tucker, C. S. Kochanek, B. J. Shappee | Summary: We present 307 Type Ia supernova (SN) light curves from the first four years of the TESS mission. We use this sample to characterize the shapes of the early […]

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Complex magnetic and spatial symmetry breaking from correlations in kagome flat bands

Posted by dbos July 21, 2023Berkeley

Kavli Affiliate: Joel E. Moore | First 5 Authors: Yu-Ping Lin, Chunxiao Liu, Joel E. Moore, , | Summary: We present the mean-field phase diagram of electrons in a kagome flat band with repulsive interactions. In addition to flat-band ferromagnetism, the Hartree-Fock analysis yields cascades of unconventional magnetic orders driven by onsite repulsion as filling […]

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Complex magnetic and spatial symmetry breaking from correlations in kagome flat bands

Posted by klaurent July 21, 2023Berkeley

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Sagnac interferometry for high-sensitivity optical measurements of spin-orbit torque

Posted by klaurent July 21, 2023Cornell

Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Saba Karimeddiny, Thow Min Jerald Cham, Orion Smedley, Daniel C. Ralph, Yunqiu Kelly Luo | Summary: Sagnac interferometry can provide a significant improvement in signal-to-noise ratio compared to conventional magnetic imaging based on the magneto-optical Kerr effect (MOKE). We show that this improvement is sufficient to […]

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Discovery and characterisation of two Neptune-mass planets orbiting HD 212729 with TESS

Posted by klaurent July 21, 2023MIT

Kavli Affiliate: Sara Seager | First 5 Authors: David J. Armstrong, Ares Osborn, Vardan Adibekyan, Elisa Delgado-Mena, Saeed Hojjatpanah | Summary: We report the discovery of two exoplanets orbiting around HD 212729 (TOI,1052, TIC 317060587), a $T_{rm eff}=6146$K star with V=9.51 observed by TESS in Sectors 1 and 13. One exoplanet, TOI-1052b, is Neptune-mass and […]

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