19 février 2013

The 2011 Periastron Passage of the Be Binary delta Scorpii, Final publication

Anatoly Miroshnichenko publication  "The 2011 Periastron Passage of the Be Binary delta Scorpii" is available on arXiv http://arxiv.org/abs/1302.4021 Many amateurs has contributed to this campaign. 50% of the sepctra are from Amateur, about 300. A lot of questions are still in the air as a third component is possible. So rendez vous in 8 years. Publication in ApJ is scheduled in April. I was particpating to this campaign both at IAC80, with Anatoly, Alberto, Jose for ten days in July 2011, and with my own spectroscpe... [Lire la suite]
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07 mars 2012

Talk of Anatoly Miroshnichenko on delta sco 2010/2011

Miroshnichenko_DeltaSco_Iguassu_2012 Talk of Anatoly Miroshnichenko on delta sco 2010/2011 at Feb, 2012 ESO conference on hot stars in Brazil
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11 juillet 2011

IAC80, a mission on delta scorpii at the Teide

For nine nights i have been there in good compagny. http://www.iac.es/eno.php?op1=3&lang=en This mission was about the peri-astron of delta scopii and was a real success. We have got in nine nights 30 Halpha spectra, 30 HeII 4500, 4686 and one H gamma. All taken with a LhiresIII 2400gr/mm and ST10XME camera. Exhausting sometimes...  Two articles in english are ingoing. One for Sky and telescope, relating this fantastic adventure, and one on a referee journal concerning the scientific facts. One other in a french... [Lire la suite]
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