spectro-aras.com

And my contribution on TCP J21040470+4631129 taken with my LISA late evening 2019-07-14.

Cheers
Woody

Hello Joan, I accepted your challenge to take spectra of KIC9832227:) Here is a plot of my data from last night and also a plot comparison with data I acquired one year ago. I see a similar change as you have shown above. I used the Shelyak LISA, taking 9 600sec exposures, I used HD192640 as a refer...

Fantastic discovery Olivier! Will they let you take the 1m home with you?

Woody

Hi Christian, At the end of last year I installed a rotator in front of my LISA spectrograph. This allows me to rotate the spectrograph such that I can always orient the spectrograph slit perpendicular to the horizon when I am shooting the Reference star or the Target star. This appears to work very...

Hello Olivier and all, Very nice spectrum Olivier! What resolution and RMS error did ISIS report when you processed this spectrum? This should be interesting to compare to the spectrum I took last night with my LISA using the 23 micron slit on my 00000.355 meter telescope at the famous Desert Celest...

Here is my low resolution contribution on CH Cyg from last night using the Shelyak LISA. I have exaggerated the vertical scale. I have attempted to identify the Oxygen, Fe and Nitrogen lines. Do these look correct?

Woody

Hi, I also have seen the same result as David Boyd when comparing the results processing HD114330 using ISIS 5.9.6 vs ISIS 5.9.1. (5.9.1 is the version I have been using until 5.9.6.) I also use a line list with file mode. The first plot shows the difference when the two calibrated but not yet respo...

Here is my contribution on AT2019ein taking 9 600sec exposures using my Shelyak LISA with 23 micron slit. Amazingly, guiding was really good using the target star on the slit. I smoothed the data slightly using a filter value of 1.5.

Woody

Hi All, What a great discussion. Thank you Robin, Ibrahima and Paolo for your ideas. Hi Christian, Many thanks for the new version of the database with many more Miles stars! This should make it easier in some locations in the sky to find a good reference star. And a good reminder to choose referenc...

Hi David and Robin, I have also puzzled on this issue. At first I thought I needed to download a newer version of the database from the ISIS web site. http://www.astrosurf.com/buil/isis-software.html So I did and I counted the number of Miles stars, those beginning with a “m_” and I counted 584 entr...