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J/A+A/403/937    Stroemgren photometry of NGC 6192 and NGC 6451 (Paunzen+, 2003)

Stroemgren uvby photometry of the open clusters NGC 6192 and NGC 6451. Paunzen E., Maitzen H.M., Rakos K.D., Schombert J. <Astron. Astrophys. 403, 937 (2003)> =2003A&A...403..937P
ADC_Keywords: Clusters, open ; Photometry, uvby Keywords: stars: chemically peculiar - stars: early-type - techniques: photometric - open clusters and associations: general Abstract: We have investigated the two open clusters NGC 6192 and NGC 6451 for which widely different reddening values and thus ages and distances via Stroemgren uvby photometry can be found in the literature. Our measurements allow us to disentangle the apparent discrepancies in the literature and to derive new accurate values. From appropriate calibrations we find that the overall abundance for NGC 6192 is about solar whereas a subsolar value for NGC 6451 was estimated. From two previous reported photometrically candidate CP stars, one within NGC 6192 shows Stroemgren indices typical for a B8Si star whereas the other object of NGC 6451 is most probably a foreground G-type star. Description: The presented two tables summarize all photometric measurements within the Stroemgren uvby system as well as values from the literature in the Johnson UBV system for NGC 6192 and NGC 6451. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 85 374 Observed program stars of NGC 6192 stars.dat 59 81 NGC 6192 star positions (from Simbad), for stars with WEBDA number table4.dat 85 912 Observed program stars of NGC 6451
See also: J/ApJS/116/263 : VI photometry of open clusters (Piatti+, 1998) J/A+A/385/867 : CCD Δa-photometry of 5 open clusters (Paunzen+, 2002) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 3 I3 --- PMR Sequential number, in NGC 6192, Cl* NGC 6192 PMR NNN in Simbad 6- 7 I2 h RAh Right ascension (J2000.0) 9- 10 I2 min RAm Right ascension (J2000.0) 12- 15 F4.1 s RAs Right ascension (J2000.0) 17 A1 --- DE- Declination sign (J2000.0) 18- 19 I2 deg DEd Declination (J2000.0) 21- 22 I2 arcmin DEm Declination (J2000.0) 24- 25 I2 arcsec DEs Declination (J2000.0) 29- 47 A19 ---- SName Simbad name from Paunzen et al., 2002, Cat. J/A+A/385/867 49 A1 --- --- [=] 51- 59 A9 --- HD HD name
Byte-by-byte Description of file: table3.dat table4.dat
Bytes Format Units Label Explanations
1- 3 I3 --- PMR Notation for stars sorted after X and Y (1) 5- 7 I3 --- WEBDA ? Notation according to WEBDA (2) 9- 14 F6.1 pix Xpos X-coordinate (3) 16- 21 F6.1 pix Ypos Y-coordinate (3) 23- 27 F5.3 mag b-y Mean Stroemgren (b-y) value 29- 33 F5.3 mag e_b-y Sigma (b-y) 35- 40 F6.3 mag m1 Mean Stroemgren m1 value 42- 46 F5.3 mag e_m1 Sigma m1 48- 53 F6.3 mag c1 Mean Stroemgren c1 value 55- 59 F5.3 mag e_c1 Sigma c1 61- 66 F6.3 mag Vmag Mean V value 68- 72 F5.3 mag e_Vmag Sigma Vmag 74- 78 F5.3 mag B-V ? (B-V) from the literature 80- 85 F6.3 mag U-B ? (U-B) from the literature
Note (1): Simbad designations: table3.dat: Cl* NGC 6192 PMR NNN table4.dat: Cl* NGC 6451 PMR NNN Note (2): WEBDA naming conventions: For NGC 6192, number from Kilambi et al. (1983BASI...11..226K), Cl* NGC 6192 KF NNN in Simbad For NGC 6451, numbers from Piatti (1998, Cat. J/ApJS/116/263), Cl* NGC 6451 PCB NNN in Simbad Note (3): 1pix=0.43". North is to the left and west is upwards
Acknowledgements: Ernst Paunzen
(End) E. Paunzen (IfA, Vienna) 28-May-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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