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The offline tool hark (also on github) can be used to find and download data from the cloud.

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Next: zdust: extinction by dust Up: Multiplicative Model Components Previous: xscat: dust scattering   Contents


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