by Joan Guarro Flo » Thu Feb 02, 2023 11:57 am
Hello at all,
It is known that more every time, unfortunately, the H Alpha line plays a more secondary role in Astrophysical studies, the scientific stars analyzers are focusing on the other physical elements for their conclusions about stars evolution.
You can deduce that the high resolution H Alpha observations would be considered incomplete today and low useful ones if they do not have joined with other graphic areas.
Speaking or texting with various analyzers they are very happy about using our H Alpha data, and more if our graphics are including the He 6678 line, but that almost always is not sufficient information. Of course, all of them without any exception are really appreciating our contribution in every case and have in high consideration our observations.
As a sample, one of them wrote to me " - In the "defense" of H Alpha only, I do have a project in which I am slowly going through all BeSS data over the last 20 years to get a statistics of Be stars that sometimes look like plain B stars, but frankly this is one of the few cases. And even that draws the value from the mass of H Alpha spectra accumulated over the decades, not from a single spectrum. Apart from this, it would probably be difficult to find scientific projects using H Alpha only in the literature".
I have exposed this issue, in the sense that we would have in account it when we would change or improve our equipment, also try to observe with our current spectrographs from R = 6000 to forward, other graphic zones.- that is my point of view. As a supplement I leave these two pictures.
Best regards, J. Guarro.
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- HD44637_1.png (13.45 KiB) Viewed 2162 times
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- HD44637_2.png (29.28 KiB) Viewed 2162 times