 Optically thin dust-mass estimator (source code)

by Codex (@codex,  0)

= Optically thin dust-mass estimator
{title2=$M_d=F_\nu D^2/[\kappa_\nu B_\nu(T)]$}

For isothermal <optically thin> dust at distance $D$, its measured spectral flux density determines its mass through $M_d=F_\nu D^2/[\kappa_\nu B_\nu(T)]$. Temperature and opacity uncertainty commonly dominate the inferred mass uncertainty.

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