An attractive model: simulating fuzzy dark matter with attractive self-interactions

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Connor A. Painter, Michael Boylan-Kolchin, Philip Mocz, Mark Vogelsberger, | Summary: Fuzzy Dark Matter (FDM) comprised of ultralight ($m sim 10^{-22}~rm{eV}$) boson particles has received significant attention as a viable alternative to Cold Dark Matter (CDM), as it approximates CDM on large scales ($gtrsim 1$ Mpc) while […]


Continue.. An attractive model: simulating fuzzy dark matter with attractive self-interactions

AGN feedback in isolated galaxies with a SMUGGLE multiphase ISM

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Aneesh Sivasankaran, Laura Blecha, Paul Torrey, Luke Zoltan Kelley, Aklant Bhowmick | Summary: Feedback from active galactic nuclei (AGN) can strongly impact the host galaxies by driving high-velocity winds that impart substantial energy and momentum to the interstellar medium (ISM). In this work, we study the impact […]


Continue.. AGN feedback in isolated galaxies with a SMUGGLE multiphase ISM

Velocity Dispersions of Quiescent Galaxies in IllustirisTNG

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Jubee Sohn, Margaret J. Geller, Josh Borrow, Mark Vogelsberger, | Summary: We examine the central stellar velocity dispersion of subhalos based on IllustrisTNG cosmological hydrodynamic simulations. The central velocity dispersion is a fundamental observable that links galaxies with their dark matter subhalos. We carefully explore simulated stellar […]


Continue.. Velocity Dispersions of Quiescent Galaxies in IllustirisTNG

Multi-messenger Astrophysics of Black Holes and Neutron Stars as Probed by Ground-based Gravitational Wave Detectors: From Present to Future

Kavli Affiliate: Lisa Barsotti | First 5 Authors: Alessandra Corsi, Lisa Barsotti, Emanuele Berti, Matthew Evans, Ish Gupta | Summary: The ground-based gravitational wave (GW) detectors LIGO and Virgo have enabled the birth of multi-messenger GW astronomy via the detection of GWs from merging stellar-mass black holes (BHs) and neutron stars (NSs). GW170817, the first […]


Continue.. Multi-messenger Astrophysics of Black Holes and Neutron Stars as Probed by Ground-based Gravitational Wave Detectors: From Present to Future

Multi-messenger Astrophysics of Black Holes and Neutron Stars as Probed by Ground-based Gravitational Wave Detectors: From Present to Future

Kavli Affiliate: Lisa Barsotti | First 5 Authors: Alessandra Corsi, Lisa Barsotti, Emanuele Berti, Matthew Evans, Ish Gupta | Summary: The ground-based gravitational wave (GW) detectors LIGO and Virgo have enabled the birth of multi-messenger GW astronomy via the detection of GWs from merging stellar-mass black holes (BHs) and neutron stars (NSs). GW170817, the first […]


Continue.. Multi-messenger Astrophysics of Black Holes and Neutron Stars as Probed by Ground-based Gravitational Wave Detectors: From Present to Future

Tensor Completion with BMD Factor Nuclear Norm Minimization

Kavli Affiliate: Eric Miller | First 5 Authors: Fan Tian, Mirjeta Pasha, Misha E. Kilmer, Eric Miller, Abani Patra | Summary: This paper is concerned with the problem of recovering third-order tensor data from limited samples. A recently proposed tensor decomposition (BMD) method has been shown to efficiently compress third-order spatiotemporal data. Using the BMD, […]


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Observed epochal variations in X-ray lines from the O Supergiant $ζ$ Puppis do not require substantial changes in the wind mass flux

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: Sean J. Gunderson, Kenneth G. Gayley, David P. Huenemoerder, Pragati Pradhan, Nathan A. Miller | Summary: We fit the high resolution textit{Chandra} X-ray spectra of the O supergiant $zeta$ Puppis using the variable boundary condition (VBC) line model to test the stability of its mass-loss rate […]


Continue.. Observed epochal variations in X-ray lines from the O Supergiant $ζ$ Puppis do not require substantial changes in the wind mass flux

Stick to your Role! Stability of Personal Values Expressed in Large Language Models

Kavli Affiliate: Peter Ford | First 5 Authors: Grgur Kovač, Rémy Portelas, Masataka Sawayama, Peter Ford Dominey, Pierre-Yves Oudeyer | Summary: The standard way to study Large Language Models (LLMs) through benchmarks or psychology questionnaires is to provide many different queries from similar minimal contexts (e.g. multiple choice questions). However, due to LLM’s highly context-dependent […]


Continue.. Stick to your Role! Stability of Personal Values Expressed in Large Language Models

Stick to Your Role! Context-dependence and Stability of Personal Value Expression in Large Language Models

Kavli Affiliate: Peter Ford | First 5 Authors: Grgur Kovač, Rémy Portelas, Masataka Sawayama, Peter Ford Dominey, Pierre-Yves Oudeyer | Summary: The standard way to study Large Language Models (LLMs) with benchmarks or psychology questionnaires is to provide many different queries from similar minimal contexts (e.g. multiple choice questions). However, due to LLMs’ highly context-dependent […]


Continue.. Stick to Your Role! Context-dependence and Stability of Personal Value Expression in Large Language Models

Stick to your Role! Stability of Personal Values Expressed in Large Language Models

Kavli Affiliate: Peter Ford | First 5 Authors: Grgur Kovač, Rémy Portelas, Masataka Sawayama, Peter Ford Dominey, Pierre-Yves Oudeyer | Summary: The standard way to study Large Language Models (LLMs) with benchmarks or psychology questionnaires is to provide many different queries from similar minimal contexts (e.g. multiple choice questions). However, due to LLMs’ highly context-dependent […]


Continue.. Stick to your Role! Stability of Personal Values Expressed in Large Language Models