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J/AJ/107/1381                        Sampling of globular clusters (Tello, 1994)

Sampling of globular clusters and the distance to the Galactic Center. I. Data description and analysis TELLO C. <Astron. J. 107, 1381 (1994)> =1994AJ....107.1381T (SIMBAD/NED Reference)
Abstract: A recent compilation of globular cluster data [Harris, private communication (1991)] has been examined for the purpose of selecting a sufficiently large set of globular clusters with reliable distance estimates. The absolute differences between recent and past estimates of the cluster parameters V(HB) and E(B-V) have been studied in statistically representative (but not mutually exclusive) subsets; resulting in a conservative estimate of the average distance modulus error of 0.40mag for a total selected sample of 134 objects. The effects of spatial and metallicity segregation on the statistics of this sample are investigated. The adopted distance scale uses consistent correction terms for metallicity and reddening according to the precepts in Racine & Harris [AJ, 98, 1609 (1989)]. From a direct comparison with the spatial configuration of clusters derived in the past, random observational errors are shown to dominate the uncertainties in locating the clusters along their lines of sight. Addresses: Tello C. Divisao de Astrofisica, Instituto Nacional de Pesquisas Espaciasis (INPE/MCT), CP 515, Sao Jose dos Campos, SP, Brazil File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 70 135 Derived distance components for 134 selected globular clusters table4.tex 214 214 LaTeX version of table4.dat
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Name Object name (1) 9- 13 F5.1 deg GLON Galactic longitude 15- 19 F5.1 deg GLAT Galactic latitude 22- 26 F5.2 mag V(HB) Estimated level of the horizontal branch 29- 33 F5.2 --- m/H Metallicity measure [m/H] 36- 39 F4.2 mag E(B-V) Reddening determination 42- 46 F5.1 kpc Dsun Radial distance from the Sun 48- 52 F5.1 kpc Xsun X component of distance = Dsun cos b cos l 54- 58 F5.1 kpc Ysun Y component of distance = Dsun cos b sin l 60- 64 F5.1 kpc Zsun Z component of distance = Dsun sin b 66- 67 A2 --- S1 'S1' if S0 cluster revised estimates in V(HB) 69- 70 A2 --- S2 'S2' if S0 cluster revised estimates in E(B-V)
Note (1): Globular cluster Pal 10 appears in table4.dat although it does not belong to the selected sample S0.
Origin: AAS CD-ROM series, Volume 2, 1994
(End) Lee Brotzman [ADS] 23-Apr-1994, Patricia Bauer [CDS] 21-Oct-1994
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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