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CHARA Array finds stars dim more at edges than models predict

Original: Astronomers utilizing the CHARA Array have identified a notable discrepancy in the phenomenon of limb darkening across 3

Astronomers using the CHARA Array in California have measured limb darkening across 31 nearby stars and found that light dims at the edges of stellar disks more strongly than current theoretical models predict. The results suggest existing models of stellar atmospheres may need revision, with implications for how scientists estimate the sizes, temperatures and compositions of stars beyond the Sun.

Why now: New observational results appear to contradict established models of stellar atmospheres, a surprising finding for the astronomy community.

CHARA Arrayastronomerslimb darkening

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Evidence

• Astronomers utilizing the CHARA Array have identified a notable discrepancy in the phenomenon of limb darkening across 31 nearby stars, revealing that light dims at the edges of stellar disks more significantly than current theoretical models predict. By measuring brightness… · aishaahmed1994 · 2

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