undocumented change to ISIS IS extinction calculation
Posted: Sat Oct 01, 2022 2:40 pm
There appears to have been a change in the way ISIS calculates Interstellar extinction somewhere between versions 5.9.3 and 6.0.3. See http://www.spectro-aras.com/forum/viewt ... 284#p17284
Does anyone have a reference to the formulae ISIS has used ?
Also are earlier versions of ISIS still available on line somewhere?
They used to be at this link but it no longer works
http://www.astrosurf.com/buil/isis/download/
Thanks
Robin
Does anyone have a reference to the formulae ISIS has used ?
Also are earlier versions of ISIS still available on line somewhere?
They used to be at this link but it no longer works
http://www.astrosurf.com/buil/isis/download/
Thanks
Robin