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J/AJ/134/2353       Observations of contact binaries     (Rucinski+, 2007)

Contact binaries with additional components. III. A search using adaptive optics. Rucinski S.M., Pribulla T., Van Kerkwijk M.H. <Astron. J., 134, 2353-2365 (2007)> =2007AJ....134.2353R
ADC_Keywords: Binaries, eclipsing ; Stars, double and multiple ; Photometry Keywords: binaries: close - binaries: eclipsing - stars: variables: other Abstract: We present results of the Canada-France-Hawaii Telescope adaptive optics (AO) search for companions of a homogeneous group of contact binary stars, as a contribution to our attempts to prove the hypothesis that these binaries require a third star to become as close as observed. Description: We obtained observations aimed at the direct detection of companions of contact binary stars on the nights of 1998 January 10 and July 23, and 2005 October 17 and 18 using the AO system at the Canada-France-Hawaii Telescope (CFHT). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 32 642 Journal of the AO observations during the three observing runs of January 10, 1998, July 23, 1998 and October 17-18, 2005 table2.dat 13 80 Overview of observed systems and detections of visual companions table5.dat 107 40 Companions of contact binaries detected or confirmed during this program table6.dat 116 16 Properties of contact binaries with newly detected companions
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 I6 --- Num Frame number 8- 16 A9 --- Name Object name 18- 29 F12.4 d Date Heliocentric Julian Date 31- 32 A2 --- Filt Filter used
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Star name 11 A1 --- Run1 [CDN-] Run 1 (1998/01/10) detection code (1) 12 A1 --- Run2 [CDN-] Run 2 (1998/07/23) detection code (1) 13 A1 --- Run3 [CDN-] Run 3 (2005/10/17-18) detection code (1)
Note (1): Detection code is: - = not observed in that run N = no detection D = detection at a separation of <5" C = a very close pair, with possible detection through a deformation of the diffraction pattern
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1 A1 --- Flag [NC] N for New, C for Confirmed Detections 3- 11 A9 --- Name Star name 13- 24 F12.4 d HJD Date the observation 26- 30 F5.3 --- Phase Orbital phase of the binary 32- 35 F4.2 ---- dVphi ? Correction of binary brightness 37- 41 F5.1 mas plx Hipparcos parallax used to estimate absolute magnitudes 43- 47 F5.3 arcsec rho ? Separation 49- 52 F4.3 arcsec e_rho ? rms uncertainty on rho 54- 59 F6.2 deg theta ? Position angle 61- 65 F5.2 deg e_theta ? rms uncertainty on theta 67- 72 F6.3 --- dKmag ? Magnitude difference in K band 74- 78 F5.3 --- e_dKmag ? rms uncertainty on DKmag 80- 84 F5.3 --- dHmag ? Magnitude difference in H band 86- 90 F5.3 --- e_dHmag ? rms uncertainty on DHmag 92- 95 F4.2 mag KMAG ? Absolute K magnitude 97-100 F4.2 mag HMAG ? Absolute H magnitude 102-107 A6 --- SpT MK spectral type
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Star name 11- 15 F5.2 mag Vmax Maximum V magnitude 17- 20 F4.2 mag dVmag Difference in V band 22- 26 F5.2 mas plx Parallax 28- 31 F4.2 mas e_plx ?=- rms uncertainty on plx 33- 37 F5.1 mas/yr pm Total proper motion 39- 44 A6 --- SpT MK spectral type 46- 49 F4.2 mag (B-V)0 Deredenned B-V colour index 51- 54 F4.2 mag VMAGc Calculated absolute V magnitude 56- 59 F4.2 mag VMAG Spectroscopic absolute V magnitude 61- 64 F4.2 mag HMAG Spectroscopic absolute H magnitude 66- 69 F4.2 mag KMAG Spectroscopic absolute K magnitude 71- 74 F4.2 mag HMAGc Corrected absolute H magnitude 76- 79 F4.2 mag KMAGc Corrected absolute K magnitude 81- 85 F5.3 solMass M12 ?=- Mass of the binary system 87- 92 A6 --- SpTc Comp. MK spectral type 94 A1 --- l_M3 Limit flag on M3 95- 98 F4.2 solMass M3 estimated mass of the third companion 99 A1 --- --- [-] 100-102 F3.1 solMass M3u ? Upper value of M3 when interval 104-108 F5.1 AU a ? Semi-major axis 110-116 F7.1 yr Pvis ?=- Visual period
History: From electronic version of the journal References: Pribulla & Rucinski, Paper I 2006AJ....131.2986P, Cat. J/AJ/131/2986 D'Angelo et al., Paper II 2006AJ....132..650D
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 13-Feb-2010
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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