Specialty
An arXiv preprint analysis of selected star-forming MaNGA regions and galaxies found no statistically significant secondary dependence of gas-phase metallicity on local or total star-formation activity after accounting for stellar mass. The result is tied to the calibration and samples used.
Scientific publication4 min read
A model built from young-cluster trajectories suggests that star formation near the Sun came in bursts, followed by a smoother pattern of core-collapse supernovae. The inferred events are concentrated in several nearby regions, but the absolute rates depend on which stars and clusters the catalogues capture.
Scientific publication3 min read
A new arXiv preprint reports that three of four high-redshift candidates initially identified as extremely metal-poor galaxies had very dense high-ionization gas. Accounting for that density produced higher metallicity estimates and led the authors to classify them as possible EMPG impostors, while stressing that the result is limited to four selected objects.
Scientific publication6 min read