A research team from the Yunnan Observatories of the Chinese Academy of Sciences has recently published a study in The Astrophysical Journal that examines the inner and outer broad-line regions (BLRs) ...

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 ...