Tag

Stellar Clusters

All articles tagged with #stellar clusters

New research bolsters the case for Planet Nine's existence and origins
science7 months ago

New research bolsters the case for Planet Nine's existence and origins

A new study using simulations suggests that wide-orbit planets, including the hypothetical Planet Nine, form naturally during the chaotic early stages of planetary system development in star clusters, with gravitational interactions and environmental factors trapping some planets in distant orbits, and this process may explain the existence of rogue planets as well.

"New Images Confirm Multiple Births of Massive Stars"
astronomy2 years ago

"New Images Confirm Multiple Births of Massive Stars"

New images from the ALMA radio observatory confirm that a crowded star cluster, G333.23-0.06, is birthing groups of three, four, and five stars, consistent with star formation models. These observations provide evidence for a specific scenario for high-mass star formation and reveal that the young stars in the cluster don't have disks of dust and gas around them, indicating they are forming via a different process known as "core fragmentation." Further analyses of other star clusters are expected to provide more insights into the early stages of multiple star formation.