A second-generation star in a relic dwarf galaxy

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Anirudh Chiti, Anirudh Chiti, , , | Summary: Stars that contain only trace amounts of elements heavier than helium, referred to as having low "metallicity", preserve the chemical fingerprints of the first generation of stars and supernovae. In the Milky Way, the lowest metallicity stars show […]


Continue.. A second-generation star in a relic dwarf galaxy

X-ray Polarimetry of Accreting White Dwarfs: A Case Study of EX Hydrae

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: Sean J. Gunderson, Sean J. Gunderson, , , | Summary: We present the first first X-ray polarization measurements of a white dwarf, the intermediate polar EX Hya. We measured significant polarization only in the 2 — 3 keV energy band with a polarization degree of 8 […]


Continue.. X-ray Polarimetry of Accreting White Dwarfs: A Case Study of EX Hydrae

Squeezed Quasinormal Modes from Nonlinear Gravitational Effects

Kavli Affiliate: Frank Wilczek | First 5 Authors: Sreenath K. Manikandan, Sreenath K. Manikandan, , , | Summary: We demonstrate that long-lived black hole quasi-normal modes become quantum mechanically squeezed due to nonlinear gravitational effects. We estimate the degree of squeezing for the fundamental mode of a Schwarzschild black hole quantitatively. | Search Query: ArXiv […]


Continue.. Squeezed Quasinormal Modes from Nonlinear Gravitational Effects

Detector Correlations and Null Tests of the Coherent State Hypothesis

Kavli Affiliate: Frank Wilczek | First 5 Authors: Sreenath K. Manikandan, Sreenath K. Manikandan, , , | Summary: We discuss the statistics of correlations between two resonant detectors. We show that this allows simple null tests of the coherent state hypothesis, free of vacuum (quantum) noise. Complementary aspects of the radiation field, {it e.g.}, squeezing […]


Continue.. Detector Correlations and Null Tests of the Coherent State Hypothesis

Robust Single-Stage Fully Sparse 3D Object Detection via Detachable Latent Diffusion

Kavli Affiliate: Jing Wang | First 5 Authors: Wentao Qu, Wentao Qu, , , | Summary: Denoising Diffusion Probabilistic Models (DDPMs) have shown success in robust 3D object detection tasks. Existing methods often rely on the score matching from 3D boxes or pre-trained diffusion priors. However, they typically require multi-step iterations in inference, which limits […]


Continue.. Robust Single-Stage Fully Sparse 3D Object Detection via Detachable Latent Diffusion

Memoirs of mass accretion: probing the edges of intracluster light in simulated galaxy clusters

Kavli Affiliate: Risa Wechsler | First 5 Authors: Tara Dacunha, Tara Dacunha, , , | Summary: The diffuse starlight extending throughout massive galaxy clusters, known as intracluster light (ICL), has the potential to be read as a memoir of mass accretion: informative, individual, and yet imperfect. Here, we combine dark matter-only zoom-in simulations from the […]


Continue.. Memoirs of mass accretion: probing the edges of intracluster light in simulated galaxy clusters

Validation of TESS Planet Candidates with Multi-Color Transit Photometry and TRICERATOPS+

Kavli Affiliate: Avi Shporer | First 5 Authors: Jonathan Gomez Barrientos, Jonathan Gomez Barrientos, , , | Summary: We present an upgraded version of TRICERATOPS, a software package designed to calculate false positive probabilities for planet candidates identified by the Transiting Exoplanet Survey Satellite (TESS). This enhanced framework now incorporates ground-based light curves in separate […]


Continue.. Validation of TESS Planet Candidates with Multi-Color Transit Photometry and TRICERATOPS+

Particle Detection Using Magnetic Avalanches in Single-Molecule Magnet Crystals

Kavli Affiliate: Tom Melia | First 5 Authors: Bailey Kohn, Bailey Kohn, , , | Summary: The detection of a single quantum of energy with high efficiency and a low false positive rate is of considerable scientific interest, from serving as single quantum sensors of optical and infra-red photons to enabling the direct detection of […]


Continue.. Particle Detection Using Magnetic Avalanches in Single-Molecule Magnet Crystals

Low-Energy Calibration of SuperCDMS HVeV Cryogenic Silicon Calorimeters Using Compton Steps

Kavli Affiliate: D. B. Macfarlane | First 5 Authors: SuperCDMS Collaboration, SuperCDMS Collaboration, , , | Summary: Cryogenic calorimeters for low-mass dark matter searches have achieved sub-eV energy resolutions, driving advances in both low-energy calibration techniques and our understanding of detector physics. The energy deposition spectrum of gamma rays scattering off target materials exhibits step-like […]


Continue.. Low-Energy Calibration of SuperCDMS HVeV Cryogenic Silicon Calorimeters Using Compton Steps