Spectrographic observation series

P Cygni (34 Cyg)
RA: 20H17.8M - DEC: +38°02' (2000,0)

Latest update: Nov. 3, 2009

See the AAVSO International Observation Campaign "Photometry and Spectroscopy of P Cygni"

2009 period

Instrument: 0.28 m telescope (Celestron 11) + eShel spectrograph (R=11000) + QSI532 CCD camera (CCD KAF3200ME)
Observatory: Castanet-Tolosan (France)
Observer: C. Buil
Processing: standard  échelle pipeline (Reshel software V1.11). H2O telluric lines are removed (division by a synthetic H2O spectrum by using Vspec software - the telluric lines list is from  GEISA database (LMD/CNRS)). The diurnal and annual earth velocity are corrected (the spectra wavelength are given in an heliocentric reference for a standard atmopshere). For the plots, the continuum is normalized and vertically shifted between each spectrun for clarity. Date are given in UT.

 
P Cygni global échelle spectrum (March 23, 2009).


Red detail of P Cygni échelle spectrum (March 23, 2009).

 

Green-yellow detail of P Cygni échelle spectrum (March 23, 2009). 

Bleue-green detail of P Cygni échelle spectrum (March 23, 2009).



The Ha line (March 23, 2009).

 

Temporal evolution of Ha line.

Temporal evolution of Ha line near continuum.



Temporal evolution of 6678 A He I line.

 

The temporal variation of Ha line intensity
(the continuum is scaled to unity between 6620 A and 6630 A).

 

The temporal variation of He I 6678 A line intensity
(the continuum is scaled to unity between 6620 A and 6630 A).

 

Download _pcyg_20080707_923.dat
Download _pcyg_20090323_188.dat
Download _pcyg_20090928_812.dat
Download _pcyg_20091030_733.dat

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