Access to Astronomical Catalogues

← Click to display the menu
J/A+A/483/183      Catalogue of Blue Stragglers                (Moretti+, 2008)

Environmental effects on the globular cluster blue straggler population: a statistical approach. Moretti A., de Angeli F., Piotto G. <Astron. Astrophys. 483, 183 (2008)> =2008A&A...483..183M
ADC_Keywords: Clusters, globular ; Photometry Keywords: stars: blue stragglers - stars: luminosity function, mass function - stars: Hertzsprung-Russell (HR) and C-M diagrams - Galaxy: globular clusters: general Abstract: We present the Blue Stragglers (BSS) Catalogues extracted from the photometric data base of 74 Galactic GCs published by Piotto et al., 2002, Cat. J/A+A/391/945. All the clusters were observed in the F439W and F555W photometric bands pointing the HST/WFPC2 camera to the central core. Candidates were selected according to their position in the colour magnitude diagrams. A detailed description of the selection process is given in the paper. We give for each cluster a list of blue straggler candidates together with their photometric data. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file clusters.dat 79 56 Cluster information (from Simbad) phot/* 118 56 Files with cluster photometry
See also: J/A+A/391/945 : HST photometry of 74 galactic globular clusters (Piotto+, 2002) Byte-by-byte Description of file: clusters.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Cluster Cluster name 10- 14 F5.1 pix Xpos X position on the chip 16- 21 F6.1 pix Ypos Y position on the chip 23- 24 I2 h RAh Simbad Right ascension (J2000) 26- 27 I2 min RAm Simbad Right ascension (J2000) 29- 33 F5.2 s RAs Simbad Right ascension (J2000) 35 A1 --- DE- Simbad Declination sign (J2000) 36- 37 I2 deg DEd Simbad Declination (J2000) 39- 40 I2 arcmin DEm Simbad Declination (J2000) 42- 45 F4.1 arcsec DEs Simbad Declination (J2000) 47- 52 F6.1 km/s RV ? Simbad radial velocity 54- 58 F5.2 mag Bmag ? Simbad B magnitude 60- 64 F5.2 mag Vmag ? Simbad V magnitude 66- 68 I3 --- NStar Number of blue stragglers candidates in the cluster 70- 79 A10 --- FileName Name of the files with cluster data in subdirectory phot
Byte-by-byte Description of file: phot/*
Bytes Format Units Label Explanations
1- 6 I6 --- ID Running number on the chip 8- 14 F7.3 pix Xpos Position on the chip along X-axis 16- 22 F7.3 pix Ypos Position on the chip along Y-axis 24- 30 F7.4 mag Vmag ? Johnson V magnitude, reddening corrected 32- 38 F7.4 mag Bmag ? Johnson B magnitude, reddening corrected 40- 46 F7.4 mag F555W ? HST F555W magnitude, reddening corrected 48- 54 F7.4 mag F439W ? HST F439W magnitude, reddening corrected 56- 61 F6.4 mag e_F555W Photometric error on F555W 63- 68 F6.4 mag e_F439W Photometric error on F555W 70- 76 F7.4 mag Vmagnr ? Johnson V magnitude before dereddening 78- 84 F7.4 mag Bmagnr ? Johnson B magnitude before dereddening 86- 92 F7.4 mag F555Wnr HST F555W magnitude before dereddening 94-100 F7.4 mag F439Wnr HST F439W magnitude before dereddening 102-108 F7.4 mag chi Chi fit parameter 110-116 F7.4 mag Sharp Sharp parameter (1) 118 I1 --- Chip [1/4] Chip number (2)
Note (1): The sharp parameter is significantly positive for non-stellar objects as semi-resolved galaxies and unrecognized blended double stars, and significantly negative for cosmic rays. Stellar objects have the sharp parameter in the [-0.2-+0.2] range. Note (2): Chip number as follows: 1 = planetary camera (PC) 2 = Wide Field 1 3 = Wide Field 2 3 = Wide Field 3
Acknowledgements: Alessia Moretti, alessia.moretti(at)unipd.it
(End) Patricia Vannier [CDS] 03-Mar-2008
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

catalogue service

© UDS/CNRS

Contact