Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Sam A. Usman, Alexander P. Ji, Ting S. Li, Andrew B. Pace, Lara R. Cullinane | Summary: Milky Way globular clusters (GCs) display chemical enrichment in a phenomenon called multiple stellar populations (MSPs). While the enrichment mechanism is not fully understood, there is a correlation between […]


Continue.. Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream

Causal bounds on cosmological angular correlation

Kavli Affiliate: Craig Hogan | First 5 Authors: Craig Hogan, Ohkyung Kwon, Stephan S. Meyer, Nathaniel Selub, Frederick Wehlen | Summary: We test the hypothesis that angular correlations of gravitationally-induced temperature anisotropy in the cosmic microwave background (CMB) vanish over a range of large angular separations constrained by causality. Standard conformal geometry is used to […]


Continue.. Causal bounds on cosmological angular correlation

Nearly-zero large-angle anisotropy of the cosmic microwave background

Kavli Affiliate: Craig Hogan | First 5 Authors: Craig Hogan, Ohkyung Kwon, Stephan S. Meyer, Nathaniel Selub, Frederick Wehlen | Summary: The global isotropy of the universe is analyzed on the scale of the cosmic horizon, using the angular correlation function $C(Theta)$ of cosmic microwave background (CMB) temperature at large angular separation $Theta$. Even-parity correlation […]


Continue.. Nearly-zero large-angle anisotropy of the cosmic microwave background

Dipole-independent measurements of nearly-zero CMB correlation: a possible symmetry of primordial causal quantum coherence

Kavli Affiliate: Stephan S. Meyer | First 5 Authors: , , , , | Summary: Anisotropy of space-time is measured on the scale of the cosmic horizon, using the angular correlation function $C(Theta)$ of cosmic microwave background (CMB) temperature at large angular separation $Theta$. Even-parity correlation $C_rm even(Theta)$ is introduced to obtain a direct, precise […]


Continue.. Dipole-independent measurements of nearly-zero CMB correlation: a possible symmetry of primordial causal quantum coherence

Dipole-independent measurements of nearly-zero CMB correlation: a possible symmetry of primordial causal quantum coherence

Kavli Affiliate: Craig Hogan| First 5 Authors: Craig Hogan, Craig Hogan, , , | Summary:Anisotropy of space-time is measured on the scale of the cosmic horizon, using the angular correlation function $C(Θ)$ of cosmic microwave background (CMB) temperature at large angular separation $Θ$. Even-parity correlation $C_rm even(Θ)$ is introduced to obtain a direct, precise measure […]


Continue.. Dipole-independent measurements of nearly-zero CMB correlation: a possible symmetry of primordial causal quantum coherence

SENSEI: First Direct-Detection Results on sub-GeV Dark Matter from SENSEI at SNOLAB

Kavli Affiliate: Michael Crisler| First 5 Authors: SENSEI Collaboration, SENSEI Collaboration, , , | Summary:We present the first results from a dark matter search using six Skipper-CCDs in the SENSEI detector operating at SNOLAB. We employ a bias-mitigation technique of hiding approximately 46% of our total data and aggressively mask images to remove backgrounds. Given […]


Continue.. SENSEI: First Direct-Detection Results on sub-GeV Dark Matter from SENSEI at SNOLAB

JWST Early Release Science Program TEMPLATES: Targeting Extremely Magnified Panchromatic Lensed Arcs and their Extended Star formation

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Jane R. Rigby, Joaquin D. Vieira, Kedar A. Phadke, Taylor A. Hutchison, Brian Welch | Summary: This paper gives an overview of TEMPLATES, a JWST Early Release Science program that targeted four extremely bright, gravitationally lensed galaxies: two extremely dusty, two with low attenuation, as templates […]


Continue.. JWST Early Release Science Program TEMPLATES: Targeting Extremely Magnified Panchromatic Lensed Arcs and their Extended Star formation

DeepSurveySim: Simulation Software and Benchmark Challenges for Astronomical Observation Scheduling

Kavli Affiliate: Brian Nord | First 5 Authors: Maggie Voetberg, Brian Nord, , , | Summary: Modern astronomical surveys have multiple competing scientific goals. Optimizing the observation schedule for these goals presents significant computational and theoretical challenges, and state-of-the-art methods rely on expensive human inspection of simulated telescope schedules. Automated methods, such as reinforcement learning, […]


Continue.. DeepSurveySim: Simulation Software and Benchmark Challenges for Astronomical Observation Scheduling

Cosmological gravitational particle production and its implications for cosmological relics

Kavli Affiliate: Edward W. Kolb | First 5 Authors: Edward W. Kolb, Andrew J. Long, , , | Summary: Cosmological gravitational particle production (CGPP) is the creation of particles in an expanding universe due solely to their gravitational interaction. These particles can play an important role in the cosmic history through their connection to various […]


Continue.. Cosmological gravitational particle production and its implications for cosmological relics

Cosmological gravitational particle production and its implications for cosmological relics

Kavli Affiliate: Edward W. Kolb | First 5 Authors: Edward W. Kolb, Andrew J. Long, , , | Summary: Cosmological gravitational particle production (CGPP) is the creation of particles in an expanding universe due solely to their gravitational interaction. These particles can play an important role in the cosmic history through their connection to various […]


Continue.. Cosmological gravitational particle production and its implications for cosmological relics