ABSTRACT We present a series of simulations to demonstrate that high‐fidelity velocity‐delay maps of the emission‐line regions in active galactic nuclei (AGNs) can be obtained from time‐resolved ...

Daryl Haggard is in the Department of Physics and at the McGill Space Institute, McGill University, Montreal, Quebec H3A 2A7, Canada. Read the paper: The corona contracts in a black-hole transient ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...