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J/A+A/366/868      Binary speckle measurements at Calar Alto. I. (Docobo+, 2001)

Binary star speckle measurements at Calar Alto. I. Docobo J.A., Tamazian V.S., Balega Y.Y., Blanco J., Maximov A.F., Vasyuk V.A. <Astron. Astrophys. 366, 868 (2001)> =2001A&A...366..868D
ADC_Keywords: Stars, double and multiple ; Interferometry Keywords: binaries: visual - interferometry Abstract: We present the first results of our speckle interferometric measurements of binary stars made with the ICCD speckle camera using the 1.52-m telescope of the Observatorio Astronomico Nacional at Calar Alto (Spain) in September, 1999. The data contain 123 observations of 83 systems. The measured angular separations range from 0.153" to 6.727". We have used there new speckle measurements to improve the orbital elements for the binaries COU 247 and BU 524 AB. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 00 09 28.2 +19 06 57 COU 247 = HD 489 02 53 42.6 +38 20 15 BU 524 AB = HD 17904 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 59 123 Speckle measurements on the 1.52-m telescope
See also: J/A+AS/105/503 : Binary star speckle measurements (Balega+ 1994) J/A+AS/140/287 : 1992-1997 binary star speckle measurements (Balega+, 1999) J/AJ/111/370 : Orbits of 37 close visual systems (Hartkopf+ 1996) J/AJ/117/548 : 1997 WIYN binary stars speckle observations (Horch+, 1999) J/other/PNAOJ/2.561 : Binaries speckle observations. IV. (Miura+ 1992) J/AJ/106/352 : ICCD speckle obs. of binary stars. VIII (Hartkopf+ 1993) J/AJ/106/637 : ICCD speckle obs. of binary stars. IX (Mason+, 1993) J/AJ/106/1639 : ICCD speckle obs. of binary stars. X (McAlister+ 1993) J/AJ/108/2299 : ICCD speckle obs. of binary stars. XI (Hartkopf+ 1994) J/AJ/111/393 : ICCD speckle obs. of binary stars. XII (Al-Shukri+ 1996) J/AJ/111/936 : ICCD Speckle obs. of binary stars. XIII (Hartkopf+ 1996) J/AJ/119/3084 : ICCD speckle obs. of binary stars. XXIII (Hartkopf+, 2000) J/AJ/120/2638 : CCD speckle obs. of binary stars. II. (Horch+, 2000) J/AJ/127/1181 : Binary speckle measurements at Calar Alto (Docobo+, 2004) Table 1: Orbital elements for COU 247 and BU 524 AB -------------------------------------------------------------------------------- Star COU 247 BU 524 AB -------------------------------------------------------------------------------- Author(s) Blanco J. Docobo-Vasyuk P 280.00 yr 31.528 ± 0.072 yr T 1990.21 1996.526 ± 0.014 e 0.426 0.753 ± 0.005 a 0.846 " 0.221 ± 0.003 " i 124.9 ° 121.0 ± 0.6 ° OMEGA 21.3 ° 25.4 ± 0.6 ° omega 47.1 ° 265.0 ± 0.6 ° Sigma masses 2.9 M 4.1 ± 0.4 M Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- WDS Washington Double Star Catalogue coordinate, based on J2000 position 12- 25 A14 --- Name Name of the star or its catalogue number in common use 26- 33 A8 --- Disc Discoverer designation 36- 44 F9.4 yr Obs Epoch of the observation 46- 50 F5.1 deg PA ? Position angle 52- 56 F5.3 arcsec rho ? Angular separation 58- 59 A2 --- Note Note (1)
Note (1): Notes: "UR" : cases when the binary was not resolved. This might indicate too close a companion (less than 70 mas), too large a magnitude difference (more than 3 magnitudes), very bad seeing, or any combination of these factors. "R" : use of the red 660/40-nm filter.
History: From A&A electronic version
(End) Patricia Bauer [CDS] 28-Feb-2001
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