Projets Spectroscopie 1
Etoiles Symbiotiques
CI Cygni
Spectroscopic survey since 05-03-2011
Spectras and fit files
______ 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) = 0.42011-2014 : F. Teyssier spectra
2015 : spectra acquired by Joan Guarro Flo and David Boyd - Aras Data Base :
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Absolute flux
Absolute flux are computed using AAVSO photometry in V Band
Unit : erg/cm2/s/angström
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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 ______________________________________________________________________________________________________________________________________________________
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| 16-04-2012 |  |
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_cicyg_20130719_911.fit |
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_cicyg_20130809_919_F. Teyssier.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.