Hi Ibix
Thanks again for the prompt response to which I respond on some points:
<Given that you don't seem to be able to find the observed wavelength (and the redshift is by far the more interesting number) …..>
I disagree - the observed wavelength shows the redshift and is the more interesting presentation, while z is just a ratio.
< You can get the observed wavelength by the trivial calculation in my last post - what value would publishing the observed wavelength add? A check that they did a division correctly?>
That they did the division correctly (and more) - Yes. Many years ago, I was told that education at university level and beyond was supposed to teach one to think and to question. However, experience has taught me otherwise. During further education one was expected to listen, learn, take it all in and pass one’s exams. If one dared to question a lecturer the response was usually “That’s the way it is – just accept what you are being told, and you will understand when you know more about the subject. Then you will understand”. Well, that time has long passed, and my understanding is that there is much controversy that needs exploring further.
< If you really want to find raw data you'd have to track down the original publications around the discovery, and quite probably have to end up delving into the relevant datasets to see what's there.>
Yes, that’s exactly what I want. In fact this forum’s member “phyzguy” has already provided some useful information which I shall follow up in due course.