Kavli Affiliate: Peter Graham | Summary:A terrestrial population of room-temperature millicharged particles can arise if they make up a dark matter subcomponent or if they are light enough to be produced in cosmic ray air showers. In a companion paper, we showed that a simple electrified shell acts as an efficient accumulator for such particles, […]
Kavli Affiliate: Eli S. Rykoff | First 5 Authors: Andrés N. Salcedo, Andrés N. Salcedo, , , | Summary: We present a simulation-based forward-modeling framework for cosmological inference from optical galaxy-cluster samples, and apply it to the abundance and weak-lensing signals of DES-Y1 redMaPPer clusters. The model embeds cosmology-dependent optical selection using a counts-in-cylinders approach, […]
Kavli Affiliate: Eli Rykoff | Summary:We present a simulation-based forward-modeling framework for cosmological inference from optical galaxy-cluster samples, and apply it to the abundance and weak-lensing signals of DES-Y1 redMaPPer clusters. The model embeds cosmology-dependent optical selection using a counts-in-cylinders approach, while also accounting for cluster miscentering and baryonic feedback in lensing. Applied to DES-Y1, […]
Kavli Affiliate: Maria Monzani | Summary:Accurate position reconstruction in noble-element time-projection chambers (TPCs) is critical for rare-event searches in astroparticle physics, yet is systematically limited by electric field distortions arising from charge accumulation on detector surfaces. Conventional data-driven field corrections suffer from three fundamental limitations: discretization artifacts that break smoothness and differentiability, lack of guaranteed […]
Kavli Affiliate: Laura Schaefer| First 5 Authors: Gerard van Belle, Gerard van Belle, , , | Summary:The lunar surface is a compelling location for large, distributed optical facilities, with significant advantages over orbital facilities for high spatial resolution astrophysics. The serious development of mission concepts is timely because of the confluence of multiple compelling factors. […]
Kavli Affiliate: Risa Wechsler| First 5 Authors: Christine Ye, Christine Ye, , , | Summary:Frontier AI agents show increasing promise as scientific research assistants, and may eventually be useful for extended, open-ended research workflows. However, in order to use agents for novel research, we must first assess the underlying faithfulness and correctness of their work. […]
Kavli Affiliate: Risa Wechsler | Summary:Frontier AI agents show increasing promise as scientific research assistants, and may eventually be useful for extended, open-ended research workflows. However, in order to use agents for novel research, we must first assess the underlying faithfulness and correctness of their work. To evaluate agents as research assistants, we introduce ReplicationBench, […]
Kavli Affiliate: Rodriguez Enrique Lopez | Summary:We propose to use the unprecedented polarization sensitivity of PRIMA’s PRIMAger Polarization Imager and its high resolution in Band 1 (92 $μ$m) to map magnetic fields across two contrasting molecular cloud environments: the well-studied Perseus cloud and the isolated Musca filament. This comparative study will leverage the existing VLA […]
Kavli Affiliate: Vahe Petrosian | Summary:Gamma Ray Bursts (GRBs) are classified as long (LGRBs) and short (SGRBs) with collapsars and compact object mergers (neutron star (NS)-NS or NS-Black hole) as progenitors, respectively. The former are expected to follow the cosmic star formation rate (SFR), while the latter follows a delayed version of the SFR. However, […]
Kavli Affiliate: Vahe Petrosian | Summary:Gamma-ray bursts (GRBs) are classified as long (LGRBs) and short (SGRBs), with collapsars and compact-object mergers (NS-NS or NS-Black Holes) as progenitors, respectively. LGRBs are expected to follow the cosmic star formation rate (SFR), while SGRBs follow a delayed version of the SFR. However, this division has come under question, […]