28 Tau ARAS monitoring

Re: 28 Tau ARAS monitoring

Postby Ernst Pollmann » Fri Sep 27, 2019 6:59 pm

James,
all the evaluated parameter, RV, V/R, CA and EW in your spectrum fits perfectly into the corresponding monitorings.
Thanks!

Ernst
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Re: 28 Tau ARAS monitoring

Postby Ernst Pollmann » Thu Oct 31, 2019 3:10 pm

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
Ernst Pollmann
 
Posts: 359
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Re: 28 Tau ARAS monitoring

Postby Ernst Pollmann » Wed Nov 27, 2019 1:49 pm

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
Ernst Pollmann
 
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Re: 28 Tau ARAS monitoring

Postby James Foster » Thu Dec 05, 2019 12:30 pm

Hope you got the 28 Tau data I submitted to BeSS!

James
James Foster
Lhires III (2400/1800/600 ln/mm Grat) Spectroscope,
LISA IR/Visual Spectroscope (IR Configured Presently)
Alpy 600 with Guide/Calibration modules and Photometric slit
Star Analyzer 200
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Re: 28 Tau ARAS monitoring

Postby Ernst Pollmann » Fri Dec 06, 2019 9:10 pm

Yes, James, I used all your BeSS spectra for the monitoring.

Ernst
Ernst Pollmann
 
Posts: 359
Joined: Mon Sep 26, 2011 7:16 pm

Re: 28 Tau ARAS monitoring

Postby Ernst Pollmann » Fri Feb 14, 2020 5:22 pm

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
Ernst Pollmann
 
Posts: 359
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