del sco

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]

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

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]