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ARAS Eruptive stars Information letter #22 (15-01-2016)

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ARAS Eruptive stars Information letter #22 (15-01-2016)

The last issue can be downloaded : http://www.astrosurf.com/aras/novae/InformationLetter/ARAS_EruptiveStars_2015-10.pdf

Information letter n° 2015-10 15-01-2016
A small tutorial on spectral types, colors, and effective temperatures, Steve Shore : secondary 
AG Peg : secondary outburst in 2015 (F. Teyssier)
CI Cyg : long term monitoring (F. Teyssier, J. Guarro, D. Boyd) 
V404 Cyg : second outburst in 2015 (P. Somogyi) 

CI Cygni long term monitoring, an example : le flux of high excitation line [Fe VII] 6087 according to phase

Phase according to Fekel & al. (2000) : JD0 = 2442690 E = 853.8 d 
Phase = 1 for JD = 2455411.488 (27-10-2010) 

 

Former issues : http://www.astrosurf.com/aras/novae/InformationLetter/InformationLetter.html

 

François Teyssier

 

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484