TESS Hunt for Young and Maturing Exoplanets (THYME) XIV: A Comoving-Based Age Constraint for KELT-20

Kavli Affiliate: Andrew Vanderburg | Summary:Young stellar moving groups offer unique opportunities to investigate the early evolution of stellar and planetary systems. In continuation of an ongoing effort to age-date compelling planetary systems, we provide an in-depth age analysis of KELT-20, a young A-type star that hosts a well-aligned ultra-hot Jupiter. This system poses a […]


Continue.. TESS Hunt for Young and Maturing Exoplanets (THYME) XIV: A Comoving-Based Age Constraint for KELT-20

The effect of photon re-scattering due to cosmic reionization on 21-cm images and power spectra

Kavli Affiliate: George Efstathiou | Summary:The 21-cm signal from neutral hydrogen serves as a critical tool for unraveling the astrophysical processes that shaped cosmic dawn and the epoch of reionization. We explore the usually overlooked impact of re-scattering of 21-cm photons during and after reionization, similarly to cosmic microwave background photons. This scattering affects the […]


Continue.. The effect of photon re-scattering due to cosmic reionization on 21-cm images and power spectra

CelloAI Benchmarks: Toward Repeatable Evaluation of AI Assistants

Kavli Affiliate: Salman Habib | Summary:Large Language Models (LLM) are increasingly used for software development, yet existing benchmarks for LLM-based coding assistance do not reflect the constraints of High Energy Physics (HEP) and High Performance Computing (HPC) software. Code correctness must respect science constraints and changes must integrate into large, performance-critical codebases with complex dependencies […]


Continue.. CelloAI Benchmarks: Toward Repeatable Evaluation of AI Assistants