Thank you very much Robin for your help and all your explanations.
I’ll follow the new thread you just opened.
Cheers.
Michel
Search found 39 matches
- Sat Oct 01, 2022 9:24 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
- Sat Oct 01, 2022 2:31 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Hi Michel, Here are my files(zip file attached.) Which one is different to yours ? (I smoothed the MILES spectrum in the posted image to match the resolution of the Pickles spectrum and I still use ISIS 5.9.3 because I prefer that it corrects for the black body curve of the flat lamp but that shoul...
- Thu Sep 29, 2022 4:05 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
If the two comparisons are not visible, it is necessary to click on the image.
Cheers.
Michel
Cheers.
Michel
- Thu Sep 29, 2022 3:53 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Where is the truth (sic)? Here is the truth :-) HD207260_miles_dered_0p47_pickles_A2i.png Black is MILES HD207160 dereddened by E(B-V) = 0.47 Red is Pickles A2i Cheers Robin Hello Robin, I tried to make the same comparison as you: -HD207260 Miles (extracted from ISIS library) and dered with E(B-V)=...
- Thu Sep 22, 2022 10:35 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Bonjour Michel, Merci pour avoir pointé cette anomalie. Il y avait dans la base une série d'étoiles qui n'avaient rien à y faire. Peut-être une erreur lors d'une mise à jour. La version nettoyée : http://www.astronomie-amateur.fr/Documents%20Spectro/Outils/ReferenceStarFinder_V3.xlsm Désolé pour le...
- Thu Sep 22, 2022 10:06 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Robin Leadbeater wrote:Here is the truthBenjamin Mauclaire wrote: Where is the truth (sic)?
Black is MILES HD207160 dereddened by E(B-V) = 0.47
Red is Pickles A2i
Cheers
Robin
Hello Robin,
I just read your message.
Thank you, that's telling, so for HD206270, E(B-V)=0,47.
Cheers.
Michel
- Thu Sep 22, 2022 9:50 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Hello Benjamin,
Thank you very much for these links that I discover.
For E(B-V) of HD207260, as a beginner, I don't know which value to use between Caltek(0.88) and the one (0.47) obtained from Simbad and (B-V)intrinsic colours.
Cheers.
Michel
Thank you very much for these links that I discover.
For E(B-V) of HD207260, as a beginner, I don't know which value to use between Caltek(0.88) and the one (0.47) obtained from Simbad and (B-V)intrinsic colours.
Cheers.
Michel
- Tue Sep 20, 2022 2:15 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Hello Robin,
Thank you very much for your very clear explanations and for the link to the publication with in particular the table that gives the values of the (B-V)intrinsic colours .
Cheers.
Michel
Thank you very much for your very clear explanations and for the link to the publication with in particular the table that gives the values of the (B-V)intrinsic colours .
Cheers.
Michel
- Sun Sep 18, 2022 10:26 pm
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Hello Robin, So I will redo my measurements (in some time, as I have just disassembled my setup) of HD213470 and HD207260 following your advice to take as star reference HD212454. I will also try to do the spectra of HD213558 and HD210715. Could you tell me how E(B-V) ~0.4 is calculated from the SIM...
- Sun Sep 18, 2022 9:51 am
- Forum: Beginners corner
- Topic: Ecart de continuum
- Replies: 22
- Views: 12536
Re: Ecart de continuum
Hello Robin, Thank you so much for your help. For the choice of the reference star, after reading several tutorials, I had noted that it was necessary to take a star of type A or B and I used the spreadsheet ReferenceStarFinder to find a reference star from a given target star. Unless I am mistaken,...