Netherlands Institute for Radio Astronomy

A 4200-hour HyperFlash and ÉCLAT campaign on the hyperactive FRB 20240114A: constraining energetics with the most brilliant bursts

Abstract Hyperactive repeaters provide a unique window into the evolving environments and energy budgets of fast radio burst (FRB) sources, though they may not be representative of the FRB population in general. High-cadence observations are key to capturing the rarest and most e...

A fast radio burst at redshift 2, three billion years after the Big Bang

Fast radio bursts (FRBs) are millisecond-duration radio transients from extragalactic sources. Their frequency and polarization properties are affected by plasma and magnetic fields along the line of sight to Earth. We report radio observations of FRB 20240304B and near-infrared...

Options for Compression of radio interferometry data: lossy compression of visibilities and lossless compression of uv-visibility grids for the MHONGOOSE survey

Abstract Next generation radio astronomy telescopes are challenging existing data reduction paradigms. With ever more antennas, larger bandwidths, and sometimes multiple primary beams, they often generate more observed data products than can readily be stored long-term. Thus, dat...

The Substrate Recurrence Hypothesis: From Transformative AI to Biological-Technological Cycles.pdf

This paper introduces the Substrate Recurrence Hypothesis (SRH), a conditional framework for examining possible transitions between biological and technological forms of autonomous organization. Starting from contemporary scenarios of transformative artificial intelligence, the a...

A Unified Rank-2 Tensor Paradigm for Cosmic Inflaton Decay:\\ Resolving the $H_0$ and $S_8$ Anomalies via Causal Viscous Hydrodynamics

We present a novel, first-principles cosmological framework that unifies inflation, dark matter, and dark energy under a single primordial rank-2 tensor field $B_{\mu\nu}$. Following the cessation of inflation, a scale-separated decomposition splits the field into a frozen, long-...

A Unified Rank-2 Tensor Paradigm for Cosmic Inflaton Decay:\\ Resolving the $H_0$ and $S_8$ Anomalies via Causal Viscous Hydrodynamics

We present a novel, first-principles cosmological framework that unifies inflation, dark matter, and dark energy under a single primordial rank-2 tensor field $B_{\mu\nu}$. Following the cessation of inflation, a scale-separated decomposition splits the field into a frozen, long-...

The Substrate Recurrence Hypothesis: From Transformative AI to Biological-Technological Cycles.pdf

This paper introduces the Substrate Recurrence Hypothesis (SRH), a conditional framework for examining possible transitions between biological and technological forms of autonomous organization. Starting from contemporary scenarios of transformative artificial intelligence, the a...

Unraveling TeV halos with the Cherenkov Telescope Array

Abstract Pulsars are observed to emit bright and spatially extended gamma-ray emission at multi-TeV energies. These so-called “TeV halos” are now understood to be a nearly universal feature of middle-aged pulsars. However, many of the key physical processes that govern these syst...

Evaluating Generative AI as a Human Factors Requirements-Based Review System of Spaceflight Ground Displays

Control displays provide monitoring, control, and commanding capabilities during prelaunch and launch countdown operations. These displays are evaluated against a set of design standards during development. Generative artificial intelligence systems offer an alternative to human-...

MemTrax as a scalable digital triage tool for mild cognitive impairment screening: primary validation in Alzheimer’s disease and exploratory analysis in Parkinson’s disease

Alzheimer’s disease (AD) and Parkinson’s disease (PD) pose escalating global health challenges, with early detection of mild cognitive impairment (MCI) being critical for timely intervention. The 2023 Delphi consensus highlights the need for scalable tools suitable for primary ca...