value unc_up unc_lo author ref method 0.044 0.0057 0.0057 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM 0.433 0.0300 0.0300 Tedesco 2002AJ....123.1056T STM 1.267 0.0568 0.0568 Ryan&Woodward 2010AJ....140..933R IRAS-STM