Skip to main content

The NASA/GSFC network is currently experiencing intermittent issues that affect our services. We are working on it and apologize for the inconvenience.
The offline tool hark (also on github) can be used to find and download data from the cloud.

Xspec Home Page

next up previous contents
Next: zsmdust: extinction by dust Up: Multiplicative Model Components Previous: zigm: UV/Optical attenuation by   Contents


zredden: redshifted version of redden

IR/optical/UV extinction from Cardelli et al. (1989). The transmission is set to unity shortward of 900 Angstroms. This is incorrect physically but does allow the model to be used in combination with an X-ray photoelectric absorption model such as phabs.

par1 E(B-V)
par2 redshift