During recent decades, strong gravitational lensing has become a powerful tool to study astronomical objects with widely different physical scales. It has also proven to be a …
This symposium honors the contributions of Charlotte Moore Sitterly as a pioneer of spectroscopy, and astronomical spectroscopy in particular. The need for precise and accurate …
These Transactions provide a record of the organisational and administrative activities of the IAU XXX General Assembly, which took place in Vienna, Austria, in August 2018. They …