zbabs: EUV ISM attenuation

The ISM attenuation due to neutral H, neutral He and once ionized He. This is a modified version of the Rumph et al. (1994) model, using the ismatten program by Pat Jelinsky, and allows the user to set the model redshift.

par1=$\eta_H$ H column density ($10^{22}$ atoms/cm$^2$)
par2=$\eta_{HeI}$ HeI column density ($10^{22}$ atoms/cm$^2$)
par3=$\eta_{HeII}$ HeII column density ($10^{22}$ atoms/cm$^2$)
par4=z redshift

HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

Last modified: Tuesday, 28-May-2024 10:09:22 EDT