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J/A+A/464/641   Double stars CCD photometry and astrometry. III (Lampens+, 2007)

Multicolour CCD measurements of visual double and multiple stars. III. Lampens P., Strigachev A., Duval D. <Astron. Astrophys. 464, 641 (2007)> =2007A&A...464..641L
ADC_Keywords: Stars, double and multiple ; Stars, nearby ; Photometry, CCD ; Photometry, UBVRI Keywords: stars: binaries: visual - techniques: photometric - stars: fundamental parameters Abstract: Recent CCD observations were performed in the period 1998-2004 for a large sample of visual double and multiple stars selected from the Hipparcos Catalogue (Cat. I/239) and/or from the Gliese Catalogue of Nearby Stars (Cat. V/70). Accurate astrometric and photometric data allowing us to characterise the individual components are provided. These data are compared to Hipparcos data or to data from an older epoch to assess the nature of the observed systems. We simultaneously apply a Moffat-Lorentz profile with a similar shape to all detected components and adjust the profile parameters from which we obtain the relative astrometric position (epoch, position angle, angular separation) as well as differential multi-colour photometry (filters (B)VRI). Description: File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 94 138 Astrometry of the observed stars table5.dat 83 124 Differential photometry of the observed stars table6.dat 90 63 Relative position compared to the Hipparcos/CCDM data
See also: I/274 : CCDM (Catalog of Components of Double Multiple stars (Dommanget+ 2002) J/A+A/374/132 : CCD photometry and astrometry of double stars (Lampens+, 2001) J/A+A/422/1023 : Nearby visual double stars UBVRI photometry (Strigachev+ 2004) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 12 A12 -- Name Identifier of the star 14 A1 --- n_Name [*] * denotes two epochs for the same target 15- 17 A3 -- m_Name Double star component 19- 27 F9.4 yr Epoch Epoch in Besselian year 29- 30 I2 -- Nfr Number of frames 32- 37 F6.3 arcsec rho ?=- Angular separation 39- 43 F5.3 arcsec e_rho ?=- Standard error of angular separation 45- 50 F6.2 deg theta ?=- Position angle 52- 55 F4.2 deg e_theta ?=- Standard error of position angle 57- 59 A3 -- Tel Telescope (1) 61- 94 A34 -- Remark Remark
Note (1): Telescope as follows: 2 = 2-m telescope at NAO Rozhen 0.6 = 60-cm telescope at AO Belogradchik
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 12 A12 -- Name Identifier of the star 14 A1 --- n_Name [*] * denotes two epochs for the same target 15- 17 A3 -- m_Name Double star component 19- 30 F12.4 d HJD Heliocentric Julian Date 32- 36 F5.3 mag DVmag Magnitude V difference of the components 38- 42 F5.3 mag e_DVmag Standard error of magnitude difference 44- 49 F6.3 mag D(B-V) ?=- B-V colour difference of the components 51- 55 F5.3 mag e_D(B-V) ?=- Standard error of colour difference 57- 62 F6.3 mag D(V-R) ?=- V-R colour difference of the components 63 A1 --- u_D(V-R) [)] Uncertainty flag on DV-DR 65- 69 F5.3 mag e_D(V-R) ?=- Standard error of colour difference 70 A1 --- ueD(V-R) [)] Uncertainty flag on e_DV-DR 72- 77 F6.3 mag D(V-I) ?=- V-I colour difference of the components 79- 83 F5.3 mag e_D(V-I) ?=- Standard error of colour difference
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 12 A12 -- Name Identifier of the star 14 A1 --- n_Name [*] * denotes two epochs for the same target 15- 17 A3 -- m_Name Double star component 19- 20 I2 -- Nfr Number of frames 22- 28 F7.2 yr Epoch Epoch in Bessel year (1) 30- 35 F6.3 arcsec rho Angular separation 37- 42 F6.2 deg theta Position angle 44- 49 F6.3 arcsec Drho Comparison with Hipparcos/CCDM angular separation 51- 58 F8.3 deg Dtheta Comparison with Hipparcos/CCDM position angle 60- 65 F6.3 arcsec Dpos Comparison with Hipparcos/CCDM relative position 67- 90 A24 -- Code Remarks concerning the system (2)
Note (1): Epoch: 1991.25 from Hipparcos else epoch from CCDM Note (2): Codes as follows: L = optical M = motion O = orbital S = stable * = 180° converted ** = alternative Hipparcos solution Pap II = Lampens & Strigachev, 2004, Cat. J/A+A/422/1023
Acknowledgements: Patricia Lampens, Patricia.Lampens(at)oma(be) Anton Strigachev, Anton.Strigachev(at)oma(be) References: Lampens & Strigachev, Paper I 2001A&A...368..572L Lampens & Strigachev, Paper II 2004A&A...422.1023S, Cat. J/A+A/422/1023
(End) Patricia Vannier [CDS] 21-Dec-2006
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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