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J/AZh/85/409  V1357 Cyg spectroscopic monitoring in 2002-04  (Karitskaya+, 2008)

Spectroscopic monitoring of V1357 CYG = CYG X-1 in 2002-2004. Karitskaya E.A., Bochkarev N.G., Bondar A.V., Galazutdinov G.A., Lee B.-K., Musaev F.A., Sapar A.A., Shimansky V.V. <Astron. Zh. 85, 409 (2008)> =2008AZh....85..409K =2008ARep...52..362K
ADC_Keywords: Binaries, X-ray; Spectroscopy; Line Profiles Abstract: The results of Cyg X-1 = HDE 226868/V1357 Cyg optical spectral monitoring in 2002-2004 are discussed. Spectral observations were carried out on Peak Terskol Observatory (Kabardino-Balkaria, Russia, resolution R=45000 and 13000) and Bohyunsan Optical Astronomy Observatory (BOAO, Korea, R=30000, 44000). Each spectrum covers the main part of optical spectral range. During 33 observational nights 75 echelle spectra were obtained in the times of the "soft" and "hard" states of Cyg X-1. The X-ray influence on spectral line profiles was studied. The RXTE/ASM data were used for this purpose. The X-ray flare resulted in strong variations of Halpha and HeII4686Å emission component profiles during night. This behaviour we connect with variations of ionization structure of matter in the system. Line profile variations with the orbital phase were observed. The spectral atlas for Cyg X-1 was constructed. The contented line identification was done. There were revealed 172 lines and blends which belong to 12 chemical elements: H, He, C, N, O, Ne, Mg, Al, Si, S, Fe, Zn. The HDE 226868 spectral classification as ON star was confirmed. Objects: --------------------------------------------------------------- RA (2000) DE Designation(s) --------------------------------------------------------------- 19 58 21.676 +35 12 05.78 V1357 Cyg = X Cyg X-1 = HD 226868 --------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 72 34 Log of observations of V1357 Cyg table2.dat 25 194 Stellar lines identified in the spectrum of V1357 Cyg
See also: J/PAZh/26/27 : Variability of Cyg X-1 in 1995-1996 (Karitskaya+, 2000) J/AZh/78/408 : Variability of Cyg X-1 in 1994-1998 (Karitskaya+, 2001) J/A+A/407/1039 : X-ray power spectra of Cygnus X-1 (Pottschmidt+, 2003) J/A+A/452/975 : Temporal variability of Cygnus X-1 (Axelsson+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Running number of night observations 5- 14 A10 "DD/MM/YYYY" Date Observation date 17- 19 A3 --- Inst Instrument used (1) 22 I1 --- Nsp Total number of spectra 25- 35 F11.3 d JD Julian date 38- 42 F5.3 --- Phase Orbital phase 45- 48 F4.2 --- Ph147 Phase of the 147-days period 51- 54 F4.2 --- Ph294 Phase of the 294-days period 57- 59 I3 ct/s FX X-ray fluxes according to 2-12keV RXTE/ASM data 60 A1 --- u_FX Uncertainty flag on FX 63- 72 A10 --- Xray X-ray spectrum state (2)
Note (1): Instruments as follows: t = Terskol, Coude spectrograph at 2-m telescope, spectral resolution 45000 cs = Terskol, echelle spectrograph at Cassegrain focus at 2-m telescope, spectral resolution 13000 csb = Terskol, echelle spectrograph at Cassegrain focus at 2-m telescope, with CCD more sensitive in the blue k30 = Optical fiber echelle spectrograph of 1.84-m telescope, Bohyunsan Observatory, South Korea, spectral resolution 30000 k44 = Optical fiber echelle spectrograph of 1.84-m telescope, Bohyunsan Observatory, South Korea, spectral resolution 44000 Note (2): "hard" and "soft" correspond to hard and soft X-ray states of Cyg X-1 according to the RXTE/ASM data (arrows note transition states of the X-ray spectrum)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 7 F7.2 0.1nm LambdaO ? Observed wavelength 11- 15 A5 --- El Element 18- 25 F8.3 0.1nm LambdaL Laboratory wavelength

(End) Veta Avedisova [INASAN] 21-Nov-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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