Metal-poor stars in cluster Dolidze 25 accrete mass from their disks at rates very similar to those in normal-metallicity regions

• Even though Dolidze 25 region has far fewer heavy elements, the stars still show normal levels of accretion — meaning gas is falling onto them from their disks at rates comparable to similar stars in richer environments. This suggests that low metallicity does not strongly change how young stars grow or how their disks evolve during the first couple of million years.

• Mass-accretion rates tell us how fast material from the surrounding disk is falling onto the star. Low metallicity does not slow down the early growth of stars from their disks.

 

• Lithium absorption lines (young stars still have lithium) and Hydrogen emission lines (Balmer emission) are measured here. From the emission lines, they estimated line luminosity and then calculated Mass accretion rate(how much mass each young star is accreting from its disk)

• Lacc is luminosity,

R∗ is the stellar radius,
Rin​ is the inner radius of the disk

M∗​ is the stellar mass

 

• Source: https://arxiv.org/html/2512.04645v1