Page 5 of 5

Re: 28 Tau ARAS monitoring

PostPosted: Fri Sep 27, 2019 6:59 pm
by Ernst Pollmann
James,
all the evaluated parameter, RV, V/R, CA and EW in your spectrum fits perfectly into the corresponding monitorings.
Thanks!

Ernst

Re: 28 Tau ARAS monitoring

PostPosted: Thu Oct 31, 2019 3:10 pm
by Ernst Pollmann
Dear colleagues,
I want to remind at the periastron passage of 28 Tau on November 13th this year. Halpha spectra are urgend required.

Ernst Pollmann

Re: 28 Tau ARAS monitoring

PostPosted: Wed Nov 27, 2019 1:49 pm
by Ernst Pollmann
Dear colleagues,
the so far high cadence of spectra enables very well the determination of the exact time of the last periastron (important to determine the orbital period of the companion). Thanks a lot to all the colleagues who contributed so far!!
But in order to evaluate the total character of the periastron passage with parameter EW, V/R, RV and CA (= central absorption core) of the Halpha line profile, further spectra are urgently required.
Please try it, if it is possible ...

Ernst Pollmann

Re: 28 Tau ARAS monitoring

PostPosted: Thu Dec 05, 2019 12:30 pm
by James Foster
Hope you got the 28 Tau data I submitted to BeSS!

James

Re: 28 Tau ARAS monitoring

PostPosted: Fri Dec 06, 2019 9:10 pm
by Ernst Pollmann
Yes, James, I used all your BeSS spectra for the monitoring.

Ernst

Re: 28 Tau ARAS monitoring

PostPosted: Fri Feb 14, 2020 5:22 pm
by Ernst Pollmann
Dear colleagues,
I want to introduce results of the extraordinary successful ARAS periastron passage campaign of 28 Tau from November 2019 to February 2020.
Here the link the the report:

https://www.astrospectroscopy.de/.cm4al ... 8020&cdp=a

Ernst Pollmann