That's clear Tony. More is to come, amateurs are enthusiastic people to feed by astrophysics and live science.Now seeing is down to 0,4", but the Calima is up to us. Milky way has vanished, banned from our sky, lowering on the horizon in a yellow hazy sky. Seems more looks like at what we used to know.
Robin, results you obtained from your own modest observatory deserve amateur community in much more manner than us. Destiny is sometimes cruel but force talent.
Indeed, I had forgotten how large the spectral variations can be in WT134. And I wanted to be sure that the big hump was actually real and not due to some instrumental effect. The other spectra show that it is indeed real. But I repeat that we won?t know what it all means until we can digest the whole 4 months of data (perhaps even more, if some observers wish to continue into late September and more).
Tony
From: thierry Garrel (fg-spek-convento(==>)vds-astro.de ([email]fg-spek-convento(==%3E)vds-astro.de[/email]))
Sent: Wednesday, July 31, 2013 7:58 PM
To: fg-spek-convento(==>)vds-astro.de ([email]fg-spek-convento(==%3E)vds-astro.de[/email]) (fg-spek-convento(==>)vds-astro.de ([email]fg-spek-convento(==%3E)vds-astro.de[/email]))
Subject: [fg-spek] Re: My attempt at WR134
Ah yes Robin i remember. I was not thoroughly following such a star and now with many spectra per night it seems to me more interesting. For sure a four month campaign will deliver a lot of results, some unexpected. Live science is always exiting. Now the Calima is strong but under the dust limit and we lost thirty percent of signal. Still remain a lot more than in my garden. The seeing is average for Teide observatory between 0,8" and 1,2". Yesterday we had a coronal sky, you could make a total eclipse of the sun only with a penny. Nightsky during daylight, we were on the moon.
Tony you said that you were surprised by John'hump while observed before. I missed something ?
T
2013/8/1 Tony Moffat )
vds-astro.de (fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==>)
vds-astro.de[/email]))>
: Beautiful observations, Thierry. There is a lot going on in the spectra: quasi-periodic CIRs and stochastic clumping, so the 2.3d periodicity may not be obvious. Only when we look at all the data over 4 months will we really know what?s going on. Just keep up the good work!
Thanks, Tony
From: thierry Garrel (fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==%3E)
vds-astro.de[/email]))
Sent: Wednesday, July 31, 2013 3:10 PM
To: fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==%3E)
vds-astro.de[/email]) (fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==%3E)
vds-astro.de[/email]))
Subject: [fg-spek] Re: My attempt at WR134
Hi,
last four WR134 spectra of the night showed a new increasing hump on the red part of the line. It should have disappeared this night.. Robin, thanks for the paper, but i'm still monitoring the line with Ew, an easy to do approximation of the behavior of this now complex line, thanks John, my neihghbor (!), to have warn us.
Observing sessions are quite long but exiting with such surprise., Yesterday we lost again 2H with a declination problem, now recurrent, and still no autoguiding. Our night assistant, Pedro, is very experienced, a good observer too with the 1.5m TCS in infrared photometry and has finally succeed to restart the telescope.
Attached is also the active 4686 line profile variation of our 4 nights here. I have reduced all night profiles of others WR stars, available if some wants to compared, but have no time to analyze it. We are about to send raw data to Montréal. Running with multilingual Audela for acqusition and real time reduction would have gave to the Teide teams here a good appreciation of their work and some exiting moments like the one we live. I have corrected some bad things in the data acquisition guidelines, specially Thar overexposition, led flat leading to memory effect and error in the continuum.
Cheers
Thierry
2013/7/31 Tony Moffat )
vds-astro.de (fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==>)
vds-astro.de[/email]))>
: Beautiful observations, Thierry! But don?t expect a strict periodicity. Despite a strict rotation period, we suspect that the bright spots that form on the hydrostatic surface of the star come and go on timescales of a few rotations, introducing a scatter in the phasings of the light curve variations, which can partly hide the underlying periodicity of 2.3d. This period was found previously through intense monitoring, but never for as long as we are doing in this campaign. Keep it up!
Thanks, Tony
From: thierry Garrel (fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==%3E)
vds-astro.de[/email]))
Sent: Tuesday, July 30, 2013 10:30 PM
To: fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==%3E)
vds-astro.de[/email]) (fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==%3E)
vds-astro.de[/email]))
Subject: [fg-spek] Re: My attempt at WR134
Hi all, John,some report from the Teide on 5411.
Short terms variations are observed too with a high confident. But no periodic behavior has been observed so far, only three nights. We can suspect such from Ew evolution but we need more observations.
Something to follow
Thierry
2013/7/30 John Strachan )
vds-astro.de (fg-spek-convento(==>)
vds-astro.de ([email]fg-spek-convento(==>)
vds-astro.de[/email]))>
: Thanks for the comments Tony.
After a cloudy weekend it cleared on Monday :0) Results of last nights 4 spectra attached showing gradual filling in on blue side of the peak
Thierry Garrel
Observatoire de Fontcaude, Montpellier, France
SpectroBlog
http://gabalou.canalblog.com/
Tony Moffat
Thierry Garrel
Observatoire de Fontcaude, Montpellier, France
SpectroBlog
http://gabalou.canalblog.com/
Tony Moffat
Thierry Garrel
Observatoire de Fontcaude, Montpellier, France
SpectroBlog
http://gabalou.canalblog.com/
Tony Moffat
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