Can near-to-mid infrared spectral energy distribution quantitatively trace protoplanetary disk evolution?

Mingchao Liu, Jinhua He, Zhen Guo +2

Infrared (IR) spectral energy distribution (SED) is the major tracer of protoplanetary disks. It was recently proposed to use the near-to-mid IR (or K-24) SED slope $\hat{I}\pm$ defined be…