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Blog 15315

A blog by jsandse in General

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Spectra of Wolf-Rayet Stars

Hi all, Time for another blog. If anyone is interested in my blogs please comment or I may think I am speaking to myself.:eek::eek: Anyway Wolf-Rayet stars - what are they what do their spectra look like and moreover why are they interesting? Wolf-Rayet stars are extemely hot stars (surface temperatures 25000 to 50000 celsius compared to the suns cool 6000 celsius) which have evolved from hot O stars - O stars are the ones that look blue when you look through the telescope. Firs
jsandse

jsandse

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Working link to spectra in previous blog

Hi all, For some reason the link to my spectra in the previous blog idid not work :(:( so here is an updated link to it Stargazers Lounge - jsandse's Album: Spectra - Picture cheers John
jsandse

jsandse

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Comparison of my spectra of Vega against one produced from a man-made stellar model

Hi all, In my last blog I mentioned that you can generate spectra from "man-made" stellar models. In this blog I will talk a little bit more about my experience with these models. Just to rewind a bit say you have gone to the bother of capturing a stellar spectra. So you have this spectra with a number of lines in it. So what? what does it mean its just a bunch of lines - not very exciting...or is it? An example of the spectra you actually capture looks like the ones I took of Mizar in my
jsandse

jsandse

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My experiences in astronomical spectroscopy

Thought I would take the opportunity to provide some notes of my experiences in astronomical spectroscopy to date with current projects carried out and others I would like to do in the hope it may help/motivate other people. My simple aim when I started out on astronomical spectroscopy was to take spectra and to understand how the spectral lines in stars are formed. So thats two objectives the practical side of doing spectroscopy and the theoretical side of finding out why things are the way the
jsandse

jsandse

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