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The Star-Forming Cores Looked Stable Because the Shortcut Was Biased
A W43-MM1 case study found that simplified virial estimates can overstate turbulent and magnetic support.
Summary
A W43-MM1 case study found that simplified virial estimates can overstate turbulent and magnetic support.
ALMA molecular-line and dust-polarization observations were used to estimate kinetic and magnetic support in dense W43-MM1 cores. Simplified calculations classified roughly 85 percent of the measured subset as supported against collapseâ€â€an implausible answer for many protostellar cores. The authors trace the mismatch to scale extrapolation and omitted surface terms, warning that convenient virial summaries can introduce large biases.
Why it matters
A W43-MM1 case study found that simplified virial estimates can overstate turbulent and magnetic support.
Limits and context
No additional limitation was separately recorded.
Key claims
A W43-MM1 case study found that simplified virial estimates can overstate turbulent and magnetic support.
Evidence: source-2026-08-03-006
Sources
- Astronomy & Astrophysics: support estimates in W43-MM1 coresEDP Sciences · secondary reporting
Corrections
No corrections have been recorded for this story.