Search found 372 matches

by Olivier Thizy
Fri Dec 01, 2017 8:11 am
Forum: Spectroscopes and Softwares
Topic: psi Per campaign: evaluate your system efficiency
Replies: 10
Views: 7280

Re: psi Per campaign: evaluate your system efficiency

Bonjour,

merci François pour l'info sur la raie 6614A car je la détecte aussi sur certains spectres (dont psi Per et V442 And) et je me demandais ce que c'était! Je le mesure plutôt à 6613.4A.

Cordialement,
Olivier
by Olivier Thizy
Thu Nov 30, 2017 8:14 am
Forum: Outbursts, Alerts, Monitoring
Topic: V442 And Be star in outburst
Replies: 33
Views: 61785

Re: V442 And Be star in outburst

James,

thank you for the observation. Please send the reduced profile in BeSS/FITS format to me and upload it on BeSS database.

Cordialement,
Olivier
by Olivier Thizy
Mon Nov 20, 2017 3:49 pm
Forum: Outbursts, Alerts, Monitoring
Topic: V442 And Be star in outburst
Replies: 33
Views: 61785

V442 And Be star in outburst - update

Hello all, a quick update on V442 Andromedae which went into outburst end of august. The outburst seems done now (to be confirmed) but one spectrum per week would confirm it. Here is the spectrum from last night with no emission visible: V442And.png Once the outburst end if confirmed, it would be gr...
by Olivier Thizy
Mon Nov 20, 2017 3:42 pm
Forum: Be Stars survey
Topic: V594 Cas - a B[e] star currently ejecting mass...
Replies: 3
Views: 4705

V594 Cas - a B[e] star currently ejecting mass...

Hello all, as you know, B[e] have been added in BeSS database recently. Couple of us recently took spectra of V594 Cas, a magnitude 10.6 B8I[e], and results seem to be very interesting. Helpha was showing a P Cygni profile with absorption near -300km/s on nov 16th but absorption disapeared the follo...
by Olivier Thizy
Tue Nov 14, 2017 6:36 am
Forum: Be Stars survey
Topic: 28 Tau ARAS monitoring
Replies: 60
Views: 235248

Re: 28 Tau ARAS monitoring

Ernst,

thanks - this is what I assumed but prefered to ask. I know how hard it is to reconcile data received directly and the data only uploaded in BeSS - I am doing it on V442 And for exemple. So I just feel the tremendous work you are doing there - and not only on 28 Tau! :-)

Cordialement,
Olivier
by Olivier Thizy
Sun Nov 12, 2017 7:27 pm
Forum: Be Stars survey
Topic: 28 Tau ARAS monitoring
Replies: 60
Views: 235248

Re: 28 Tau ARAS monitoring

Ernst, I have several 28 Tau spectra in BeSS database. I know it is only six but three of them in august-september this year. I do not see my name on your graph so I am guessing you aren't using any of them. Are you taking spectra from BeSS or only using spectra that are sent to you directly? Cordia...
by Olivier Thizy
Mon Nov 06, 2017 10:32 pm
Forum: Be Stars survey
Topic: BeSS 10th anniversay symposium - my notes
Replies: 0
Views: 2656

BeSS 10th anniversay symposium - my notes

I wrote a quick summary of the discussion on my blog:
https://observatoire-belle-etoile.blogs ... osium.html

Cordialement,
Olivier
by Olivier Thizy
Mon Nov 06, 2017 9:01 am
Forum: Be Stars survey
Topic: Be Stars Spectra - monthly newsletter
Replies: 0
Views: 2743

Be Stars Spectra - monthly newsletter

Hello,

Valérie published the newsletter for september & october with lot of activities (almost 20 observers including some new ones), several Be stars showing evolution and worth a closer monitoring:
https://groups.yahoo.com/neo/groups/spe ... ages/19299

Cordialement,
Olivier
by Olivier Thizy
Thu Oct 12, 2017 3:58 am
Forum: Outbursts, Alerts, Monitoring
Topic: V442 And Be star in outburst
Replies: 33
Views: 61785

Re: V442 And Be star in outburst

Hello,

V442 And is still showing emission in Halpha. While the V+R seems now more stable, the distance (speed) between the two peaks seems to increase.

Updated graphs on my blog:
https://observatoire-belle-etoile.blogs ... ctive.html

Cordialement,
Olivier
by Olivier Thizy
Fri Oct 06, 2017 5:01 am
Forum: Outbursts, Alerts, Monitoring
Topic: V442 And Be star in outburst
Replies: 33
Views: 61785

Re: V442 And Be star in outburst

Hello,


I have updated the graphs:
https://observatoire-belle-etoile.blogs ... burst.html
V442And daily Halpha evolution aug21-oct05.JPG
V442And daily Halpha evolution aug21-oct05.JPG (210.07 KiB) Viewed 15804 times

Cordialement,
Olivier