Data Analysis in IRAF - I have my spectra... NOW WHAT???

Guess what?

I am back with new IRAF!

It's been a while since my last post about Data Analysis in IRAF. We ended up with fully reduced data but they are absolutely useless if we are unable to analyze them. For this purpose, we will use the splot task for inspecting and analyzing our spectra. 

Data Analysis in IRAF - Echelle spectra reduction and calibration

Welcome back in the sweet misery of data reduction

Great news to everyone - After finishing the last step of this post you should end up with perfectly reduced data (but I would like to highlight the word should because there will be a number of steps I am not certain at all). 

Data Analysis in IRAF - First reduction steps

Hello again

After all, we are prepared for actual processing so I would like to write something about basic steps of data reduction in IRAF which should be applied to all kind of data (photometric, spectroscopic..). These steps are focused on removing the detector 'finger print'. 

***NOTE*** 
I was working with data from ESO archive, obtained from ESO VLT, specifically from its UVES spectrograph. For this reason, all the examples will be for echelle spectra from ESO. Though, main differences for other kinds of data will not be very relevant in this part of processing.
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