Astrophysics – Page 462 – Kavli Institute Pre-Print Publications

Extragalactic magnetism with SOFIA (SALSA Legacy Program) — III: First data release and on-the-fly polarization mapping characterization

Posted by klaurent April 28, 2022May 10, 2022Stanford

Kavli Affiliate: Susan E. Clark | First 5 Authors: Enrique Lopez-Rodriguez, Melanie Clarke, Sachin Shenoy, William Vacca, Simon Coude | Summary: We describe the data processing of the Survey on extragALactic magnetiSm with SOFIA (SALSA Legacy Program). This first data release presents 33% (51.34h out of 155.7h, including overheads) of the total awarded time taken […]

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A low-eccentricity migration pathway for a 13-h-period Earth analogue in a four-planet system

Posted by klaurent April 28, 2022MIT

Kavli Affiliate: George Ricker | First 5 Authors: Luisa Maria Serrano, Davide Gandolfi, Alexander J. Mustill, Oscar Barragán, Judith Korth | Summary: It is commonly accepted that exoplanets with orbital periods shorter than 1 day, also known as ultra-short period (USP) planets, formed further out within their natal protoplanetary disk, before migrating to their current-day […]

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Fuzzballs and Microstate Geometries: Black-Hole Structure in String Theory

Posted by klaurent April 27, 2022May 10, 2022Chicago

Kavli Affiliate: Emil J. Martinec | First 5 Authors: Iosif Bena, Emil J. Martinec, Samir D. Mathur, Nicholas P. Warner, | Summary: The black-hole information paradox provides one of the sharpest foci for the conflict between quantum mechanics and general relativity and has become the proving-ground of would-be theories of quantum gravity. String theory has […]

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The level-1 trigger for the SuperCDMS experiment at SNOLAB

Posted by klaurent April 27, 2022May 10, 2022Stanford

Kavli Affiliate: Richard Partridge | First 5 Authors: Jonathan S. Wilson, Hanno Meyer zu Theenhausen, Belina von Krosigk, Elham Azadbakht, Ray Bunker | Summary: The SuperCDMS SNOLAB dark matter search experiment aims to be sensitive to energy depositions down to O(1 eV). This imposes requirements on the resolution, signal efficiency, and noise rejection of the […]

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The level-1 trigger for the SuperCDMS experiment at SNOLAB

Posted by klaurent April 27, 2022Stanford

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Lattice Simulations of Axion-U(1) Inflation

Posted by klaurent April 27, 2022May 10, 2022Tokyo

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Angelo Caravano, Eiichiro Komatsu, Kaloian D. Lozanov, Jochen Weller, | Summary: If gauge fields are coupled to an axion field during inflation, they lead to unique observational signatures within the reach of next generation experiments. However, this system often shows strong backreaction effects, invalidating the standard perturbation […]

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Lattice Simulations of Axion-U(1) Inflation

Posted by klaurent April 27, 2022Tokyo

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Angelo Caravano, Eiichiro Komatsu, Kaloian D. Lozanov, Jochen Weller, | Summary: We present the first nonlinear lattice simulation of an axion field coupled to a U(1) gauge field during inflation. We use it to fully characterize the statistics of the primordial curvature perturbation {zeta}. We find high-order […]

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Li-rich Giants in LAMOST Survey. III. The statistical analysis of Li-rich giants

Posted by klaurent April 27, 2022May 10, 2022Peking

Kavli Affiliate: Huawei Zhang | First 5 Authors: Yutao Zhou, Chun Wang, Hongliang Yan, Yang Huang, Bo Zhang | Summary: The puzzle of Li-rich giant is still unsolved, contradicting the prediction of the standard stellar models. Although the exact evolutionary stages play a key role in the knowledge of Li-rich giants, a limited number of […]

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Supercritical growth pathway to overmassive black holes at cosmic dawn: coevolution with massive quasar hosts

Posted by klaurent April 26, 2022Peking

Kavli Affiliate: Kohei Inayoshi | First 5 Authors: Haojie Hu, Kohei Inayoshi, Zoltán Haiman, Wenxiu Li, Eliot Quataert | Summary: Observations of the most luminous quasars at high redshifts ($z > 6$) have revealed that the largest supermassive black holes (SMBHs) at those epochs tend to be substantially overmassive relative to their host galaxies compared […]

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Constraining SIDM with halo shapes: revisited predictions from realistic simulations of early-type galaxies

Posted by klaurent April 26, 2022MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Giulia Despali, Levi G. Walls, Simona Vegetti, Martin Sparre, Mark Vogelsberger | Summary: We study the effect of self-interacting dark matter (SIDM) and baryons on the shapes of early-type galaxies (ETGs) and their dark matter haloes, comparing them to the predictions of the standard cold dark matter […]

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