J/AZh/78/408 Variability of Cyg X-1 in 1994-1998 (Karitskaya+, 2001)
Coordinated observations of Cyg X-1 (V1357) from 1994-1998 in the
Commonwealth of Independent States.
Karitskaya E.A., Voloshina I.B., Goransky V.P., Grankin K.N.,
Dzhaniashvili I.B, Ezhkova O.V., Kochiashvili N.T., Kumsiashvili M.I.,
Kusakin A.V., Lyutyi V.M., Mel'Nikov S.Yu., Metlova N.V.
<Astron. Zh. 78, 408 (2001)>
=2001AZh....78..408K 2001AZh....78..408K
=2001ARep...45..350K 2001ARep...45..350K
ADC_Keywords: Binaries, X-ray; Photometry, UBVRI
Abstract:
Photoelectric UBVR photometry of Cyg X-1 obtained during the
coordinated international campaign 'Optical Monitoring of Unique
Astrophysical objects', carried out in observatories of CIS countries
(Georgia, Kazakhstan, Russia, Uzbekistanin and Ukraine) 1994-1998 is
presented. The data are presented as a single set, taking into account
systematic differences between individual data sets. In total 2258
UBVR observations were obtained during 407 nights.
Object:
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RA (2000) DE Designation
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19 58 21.6 +35 12 05 Cyg X-1 = V1357 Cyg = HD 226868
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table.dat 75 510 Photoelectric observations of Cyg X-1
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See also:
J/PAZh/26/27 : Variability of Cyg X-1 (V1357) in 1995-1996 (Karitskaya+, 2000)
Byte-by-byte Description of files: table.dat
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Bytes Format Units Label Explanations
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1-12 F12.4 d HJD [2449559/2451178] Julian date
15-19 F5.3 mag Umag ? U magnitude
22-26 F5.3 mag e_Umag ? Uncertainty in U magnitude
29-33 F5.3 mag Bmag ? B magnitude
36-40 F5.3 mag e_Bmag ? Uncertainty in B magnitude
43-47 F5.3 mag Vmag V magnitude
50-54 F5.3 mag e_Vmag Uncertainty in V magnitude
57-61 F5.3 mag Rmag ? R magnitude
64-68 F5.3 mag e_Rmag ? Uncertainty in R magnitude
71-72 I2 --- Nnight Number of each night observations
74-75 A2 --- Rem Observer code (1)
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Note (1):
ja: E.B. Dzhaniashvili (Abastumani, Georgia)
lu: V.M. Lyuty and N.V. Metlova (SAI, Crimean Station, Ukraine)
mz: M.I. Kumsiashvili and N. Kochiachvili (Abastumani, Georgia)
sh: V.P. Goranskij, E.A. Karitskaya, A.V. Kusakin (SAI, Moscow
Russia; Institute of Astronomy (RAS), Zvenigorod, Russia; SAI,
Crimean Station; Crimean astrophysical observatory, Ukraine)
ts: V.P. Goranskij, E.A. Karitskaya (Tien-Shan observatory, Kazakhstan)
uz: K.N. Grankin, O.V. Ezhkova, S.Yu. Melnikov (Majdanak observatory,
Uzbekistan)
vo: I.B. Voloshina (SAI, Crimean Station, Ukraine)
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(End) Veta Avedisova [INASAN] 25-Aug-2001