Kavli Affiliate: Karunesh Ganguly | Authors: Aviv D Mizrahi-Kliger, Samantha Coury, Cameron L Woodard and Karunesh Ganguly | Summary: With practice, rapid early gains in performance are followed by a slower phase marked by kinematic refinement, automaticity and enhanced cortical and striatal interactions. While sleep is known to support early learning, its causal role in […]
Kavli Affiliate: Michael Shadlen | Authors: NaYoung So, Ariel Zylberberg and Michael N Shadlen | Summary: Perceptual decisions are widely modeled as the accumulation of evidence to a bound. In the lateral intraparietal area (LIP), this computation is thought to be implemented in a low-dimensional population representation organized around the single action used to report […]
Kavli Affiliate: Dheeraj Pasham | Summary:While the progenitors of many long gamma-ray bursts (GRBs) are well established as the core collapse of very massive, envelope-stripped, rapidly-rotating stars, it has been suggested that bursts at the extremely long end of the duration distribution may be a separate population of `ultra-long’ GRBs. With durations of thousands of […]
Kavli Affiliate: Edward Kolb | Summary:Vector fields with a chiral, parity-odd coupling to a pseudoscalar field are known to undergo resonant amplification. In this work, we study this phenomenon in the context of cosmological gravitational particle production during early-universe inflation. We consider a massive vector (dark photon) field with a parity-odd coupling to the inflaton. […]
Kavli Affiliate: Debanjan Chowdhury | Summary:The many-body bootstrap certifies ground-state properties by minimizing energy over correlators constrained only by positivity, without any variational wavefunction. Its cost, however, grows exponentially with the size of the operators involved, placing the long-range string correlators that diagnose topological phases out of reach. We overcome this by treating string operators […]
Kavli Affiliate: Lile Wang |Summary:Supernovae (SNe) are among the leading candidates for powering galactic-scale turbulence. SNe drive expanding shells of neutral atomic hydrogen (HI) known as superbubbles. Due to the lack of a sensitive, dynamically complete, galaxy-wide census, superbubbles have not been used to quantify the galactic-scale turbulent energy budget. Here we present a combined […]
Kavli Affiliate: Lile Wang |Summary:We present high-resolution cosmological hydrodynamic simulations of the Warm-Hot Intergalactic Medium (WHIM) using the GPU-optimized grid-based hydrodynamic code Kratos. Employing a uniform 4096^3 grid in a (100 h^-1 Mpc)^3 comoving volume, we achieve a spatial resolution of ~24.5 h^-1 kpc, sufficient to resolve the Jeans scale of gas at T ~ […]
Kavli Affiliate: Lile Wang |Summary:We present high-resolution cosmological hydrodynamic simulations of the Warm-Hot Intergalactic Medium (WHIM) using the GPU-optimized grid-based hydrodynamic code Kratos. Employing a uniform 4096^3 grid in a (100 h^-1 Mpc)^3 comoving volume, we achieve a spatial resolution of ~24.5 h^-1 kpc, sufficient to resolve the Jeans scale of gas at T ~ […]
Kavli Affiliate: Herman Marshall | Summary:We report on the observation of the Compton-thin Seyfert galaxy NGC~5506 performed with the Imaging X-ray Polarimetry Explorer (IXPE). The observation, with a net observing time of 975~ks, was partly simultaneous with textitNuSTAR (52~ks) and textitXMM-Newton (37~ks). Using a simple baseline model with IXPE data only, we find an upper […]
Kavli Affiliate: Philip Marshall | Summary:The start of the Legacy Survey of Space and Time marks a new era for strong lensing science, where the number of strong lenses identified is expected to increase to $mathcalO(10^5)$. In this paper we use a neural network to determine the precision with which lens parameters can be determined, […]