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J/A+A/343/446         VRI Cousins photometry of Am stars         (Domingo+ 1999)

Late A-type stars: new Stroemgren photometric calibrations of absolute magnitudes from Hipparcos Domingo A, Figueras F. <Astron. Astrophys. 343, 446 (1999)> =1999A&A...343..446D
ADC_Keywords: Photometry, UBVRI ; Stars, early-type Keywords: stars: chemically peculiar - stars: distances - stars: early-type - stars: fundamental parameters - stars: Hertzsprung-Russel (HR) and C-M diagrams Description: Tablea1 contains photoelectric VRI Cousins photometry for 63 Am stars observed on the 17th June, 1996 with the 1.52m telescope of the Observatorio Astronomico Nacional (O.A.N.) at Calar Alto (Almeria, Spain), and on the 25th and 26th of the same month using the 1m Jakobus Kapteyn telescope at the Observatorio del Roque de los Muchachos (O.R.M., Canary Islands, Spain). The reduction procedure followed is explained in Rossello et al. (1985A&AS...59..399R) and Landolt (1983, Cat. II/118; 1983AJ.....88..853L) standard stars were used. We provide the V magnitude, the (V-R) and (V-I) colour indices, their associated standard errors and the number of observations performed for each star. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 63 63 V, (V-R) and (V-I) of 63 Am stars
See also: I/239 : The Hipparcos and Tycho Catalogues (ESA 1997) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HIP Hipparcos (Cat. I/239) number 8- 17 A10 --- HD/BD HD (Cat. III/135) or BD (Cat. I/122) number 19- 24 F6.3 mag Vmag V magnitude 26- 31 F6.3 mag e_Vmag Standard error on V magnitude 33- 38 F6.3 mag V-R (V-R) colour index 40- 45 F6.3 mag e_V-R Standard error on V-R 47- 52 F6.3 mag V-I (V-I) colour index 54- 59 F6.3 mag e_V-I Standard error on V-I 61 I1 --- o_Vmag Number of observations 63 A1 --- Note [D] 'D' if information about duplicity is available (1)
Note (1): HIP 1286: Joint photometry, system identified as multiple in the Hipparcos Input Catalogue (Turon et al., 1992, Cat. I/191, hereafter HIC), CCDM 00161+0807 theta=142, rho=6.0, Delta m=4.5 HIP 2280: Joint photometry, system identified as multiple in HIC, CCDM 00291+1119 theta=304, rho=4.0, Delta m=6.2 HIP 63179: Joint photometry, system identified as multiple in HIC, CCDM 12566+4333 theta=211, rho=6.9, Delta m=5.5 HIP 64692: Joint photometry, system identified after publication of HIC, CCDM 13555+4051 theta=21, rho=0.37, Delta m=3.6 (from Hipparcos and Tycho Catalogues, ESA 1997, Cat. I/239; hereafter HIP) HIP 87641: Joint photometry, determined multiple by HIP, CCDM 17541+4702 theta=162, rho=0.30, Delta m=2.04 HIP 99159: Joint photometry, determined multiple by HIP, CCDM 20079+4600 theta=5, rho=2.91, Delta m=3.61 HIP 99211: Joint photometry, system identified as multiple in HIC, CCDM 20085+4622 theta=43, rho=4.17, Delta m=3.03 (from HIP) HIP 114501: Joint photometry, theta approx 180, rho approx 5, Delta m approx 5 theta: position angle relative to reference component, from North to the East (units are degrees) rho: separation between components (units are arcsec) Delta m: difference of magnitudes between components (units are mag)
Acknowledgements: Francesca Figueras, Albert Domingo
(End) A. Domingo [Universitat de Barcelona], Patricia Bauer [CDS] 23-Feb-1999
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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