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J/AZh/79/1087         UBV photometry of X-ray binary HZ Her  (Sheffer+, 2002)

Optical features of the accretion disk in the HZ Her/Her X-1 system during the anomalous low state in 1999. Sheffer E.K., Voloshina I.B., Goransky V.P., Lyuty V.M. <Astron. Zh., 79, 1087 (2002)> =2002AZh....79.1087S =2002ARep...46..981S
ADC_Keywords: Binaries, X-ray; Photometry Abstract: We present UBV photoelectric and CCD observations of HZ Her/Her X-1 system near its primary minimum in 1999, when the object was in anomalous low X-ray state, together with UBV observations accumulated since 1988. Description: We began our observations in April 1999 with the CCD photometer of the Sternberg Astronomical Institute's Crimean Laboratory, at the Newtonian focus of the 125cm telescope (relative aperture 1/4). In July, we continued observations with the CCD photometer in the B and V bands using the 60cm telescope. In August, we used the 60cm telescope with the UBV photometer and an EMI 9789 photomultiplier as a detector. Objects: ------------------------------------------------------------------------- RA (2000) DE Designation(s) ------------------------------------------------------------------------- 16 57 49.83 +35 20 32.6 HZ Her = 1RXS J165749.6+352022 = AN 142.1936 ------------------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 56 112 1999 observations of HZ Her near the primary minimum table2.dat 32 239 UBV observations of HZ Her after 1988
See also: J/A+A/342/736 : Pre-eclipse dip of Her X-1 (Stelzer+ 1999) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 12 F12.4 d JD [2451282/2451407] Julian date 15- 20 F6.4 --- Phase Orbital phase (Period=1.7day) 23- 27 F5.3 --- psi35 Phase of 35-day cycle 30- 35 F6.3 mag Vmag ? V magnitude 38- 43 F6.3 mag Bmag B magnitude 46- 51 F6.3 mag Umag ? U magnitude 54- 56 A3 --- Rem [Phe CCD] Instrument used: Phe: UBV photometer CCD: CCD photometer
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 11 F11.3 d JD [2447386/2451489] Julian date 14- 18 F5.2 mag Vmag V magnitude 21- 25 F5.2 mag Bmag B magnitude 28- 32 F5.2 mag Umag U magnitude

(End) Veta Avedisova (INASAN) 01-Apr-2003
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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