Filamentary structure of star-forming complexes

Understand

The nearest young stellar groups are associated with "hubs" of column density exceeding 10^22 cm^-2, according to recent observations.

• These hubs radiate multiple "filaments" of parsec length, having lower column density and fewer stars.
• Systems with many filaments tend to have parallel filaments with similar spacing.
• Such "hub-filament structure" is associated with all of the nine young stellar groups within 300 pc, forming low-mass stars.