Projets Spectroscopie 1
Etoiles Symbiotiques

CI Cygni

 

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Spectroscopic survey since 05-03-2011

Spectras and fit files

2011

2012

2013

 

 

 

 

______ Equivalent widths _________________________________________________________________________________________________________________________________________________________


Horizontal scale = Phase according to Fekel & al. (2000) : JD0 = 2442690 E = 853.8 d
Phase = 1 for JD = 2455411.488 (27-10-2010)
Spectra deredened using E(B-V) = 0.4

   
 
 
 
     

Absolute flux

Absolute flux are computed using AAVSO photometry in V Band

Unit : erg/cm2/s/angström

 
   
 
     

Temperature of hot component

in Kelvins

This temperature diagnostic uses HeII44686, HeI 4471 and H béta flux (Iijima, 1981) :

T/10000 [K] = 19.37 * racine(K) + 5.13
with K = 2.22 * F(HeII 4686)/(4.16 * F(Hb) + 9.94 * F(He I 4471))

Spectra

___________ Observations 2011 ______________________________________________________________________________________________________________________________________________________

___________ Observations 2012 _________________________________________________________________________________________________________

   

___________ Observations 2013 ______________________________________________________________________________________________________________________________________________________

16-04-2012

_cicyg_20130421_066.fit

_cicyg_20130428_146

_cicyg_20130501_128.fit

 

_cicyg_20130516_051.fit

 

_cicyg_20130529_005.fit

_cicyg_20130619_925.fit

 

_cicyg_20130626_020.fit

 

 

_cicyg_20130705_910.fit

 

 

_cicyg_20130712_907.fit

_cicyg_20130719_911.fit
   
   
   
   
   
   
   
   
   
   
   

 

 

 

 

 

References

 

2009MNRAS.399.2139S
Mon. Not. R. Astron. Soc., 399, 2139-2145 (2009)
The ongoing 2008-09 outburst of CI Cyg.
SIVIERO A., MUNARI U., DALLAPORTA S., VALISA P., LUPPI V., MORETTI S., TOMASELLI S., BACCI S., BALLARDINI F., CHERINI G., GRAZIANI M., FRIGO A. and VAGNOZZI A.

1991AJ....101..637K
Astron. J., 101, 637-654 (1991)
On the nature of the symbiotic binary CI Cygni.
KENYON S.J., OLIVERSEN N.A., MIKOLAJEWSKA J., MIKOLAJEWSKI M., STENCEL R.E., GARCIA M.R. and ANDERSON C.M.

1985AcA....35...65M
Acta Astron., 35, 65-95 (1985)
On the nature of CI Cygni.
MIKOLAJEWSKA J.

1985IBVS.2834....1G
IAU Inform. Bull. Var. Stars, 2834, 1-4 (1985)
Photometry and spectrophotometry of symbiotic stars : CI Cyg, Z And, V1016 Cyg, HM Sge, HBV 475.
GRAVINA R.

1983AcA....33..403M
Acta Astron., 33, 403-429 (1983)
A spectrophotometric study of CI Cygni during the 1980 eclipse.
MIKOLAJEWSKA J. and MIKOLAJEWSKI M.

1983ApJ...268..250O
Astrophys. J., 268, 250-263 (1983)
Observational studies of the symbiotic stars. II. Emission-line relative intensity variations in CI Cygni, BF Cygni, AX Persei, and V1016 Cygni.
OLIVERSEN N.A. and ANDERSON C.M.

1983IBVS.2355....1M
IAU Inform. Bull. Var. Stars, 2355, 1-4 (1983)
Emission line intensity varations during the 1982 eclipse of CI Cygni.
MIKOLAJEWSKA J.

1981A&A....94..290I
Astron. Astrophys., 94, 290-293 (1981)
Spectrophotometric observations of CI Cyg in 1979.
IIJIMA T.

1981A&AS...46..257F
Astron. Astrophys., Suppl. Ser., 46, 257-261 (1981)
Observations spectroscopiques de CI Cygni.
FEHRENBACH C. and CHUN H.C.

1981IBVS.1945....1G
IAU Inform. Bull. Var. Stars, 1945, 1-2 (1981)
Spectroscopic observations of CI Cyg in 1980.
GRAVINA R.

1981IBVS.2041....1G
IAU Inform. Bull. Var. Stars, 2041, 1-4 (1981)
Spectroscopic observations of symbiotic stars in July and September 1981.
GRAVINA R.

1980IBVS.1759....1G
IAU Inform. Bull. Var. Stars, 1759, 1-2 (1980)
Spectroscopic observations of CI Cygni in 1978 and 1979.
GRAVINA R.

1954AnAp...17....6T
Ann. Astrophys., 17, 6 (1954)
Les spectres de BF Cygni, AX Persei et CI Cygni en 1952.
TCHENG M.L. and BLOCH M.

1953AnAp...16...73B
Ann. Astrophys., 16, 73 (1953)
Spectrophotometrie de T CrB de 1946 a 1952.
BLOCH M. and TCHENG M.L.

1953PDAO....9..321A
Publ. Dominion Astrophys. Obs., 9, 321 (1953)
Spectrographic studies of the combination variables Z Andromedae, BF Cygni, CI Cygni.
ALLER L.H.

1953PDAO....9..321A
Publ. Dominion Astrophys. Obs., 9, 321 (1953)
Spectrographic studies of the combination variables Z Andromedae, BF Cygni, CI Cygni.
ALLER L.H.

 

 

 

 

 

 

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