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J/AJ/128/712          Washington Photometry in NGC 5128          (Harris+, 2004)

Wide-field Washington photometry of the NGC 5128 globular cluster system. I. The database. Harris G.L.H., Geisler D., Harris W.E., Schmidt B.P., Hesser J.E., Reid M., Milne M., Hulme S.C., Kidd T.T. <Astron. J., 128, 712-722 (2004)> =2004AJ....128..712H
ADC_Keywords: Clusters, globular ; Photometry, CMT1T2V Keywords: galaxies: individual (NGC 5128) - galaxies: stellar content - globular clusters: general Abstract: To investigate the global properties of the globular cluster system (GCS) around NGC 5128, the central giant elliptical galaxy in the nearby Centaurus group, we have obtained deep CCD imaging for an area of almost 2°2 centered on the galaxy. Our data, in the CMT1 Washington photometric system, reach an approximate limiting magnitude of T1∼R∼22 and contain magnitudes, colors, and coordinates for more than 100,000 objects. Of these, the vast majority (about 99%) are either foreground stars or faint background galaxies; the old-halo globular clusters make up the remaining tiny fraction of the sample. Our database, however, provides the material for understanding the large-scale features of the GCS, including its metallicity distribution (MDF), luminosity distribution, and spatial structure. Description: The observations were obtained with the Big Throughput Camera (BTC) at the Cerro Tololo Inter-American Observatory 4m telescope, during two nights in 1998 (May 11-13) and two nights in 1999 (May 26-28). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 77 107040 Big Throughput Camera (BTC) Data for All Measured Objects
See also: J/AJ/128/723 : Washington Photometry in NGC 5128. II (Harris+, 2004) J/A+A/369/812 : UVKs photometry of NGC 5128 globular clusters (Rejkuba, 2001) J/ApJS/150/367 : Globular clusters in NGC 5128 (Peng+, 2004) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 10 F10.6 deg RAdeg Right ascension in decimal degrees (J2000) 12- 20 F9.5 deg DEdeg Declination in decimal degrees (J2000) 22- 28 F7.3 arcmin Rad Distance from NGC 5128 center 30- 35 F6.2 deg Theta Position angle 37- 42 F6.3 mag T1mag ?=99.999 Washington T1 band magnitude 44- 49 F6.3 mag e_T1mag ?=99.999 Error in T1 51- 56 F6.3 mag Mmag ?=99.999 Washington M-band magnitude 58- 63 F6.3 mag e_Mmag ?=99.999 Error in Mmag 65- 70 F6.3 mag Cmag ?=99.999 Washington C-band magnitude 72- 77 F6.3 mag e_Cmag ?=99.999 Error in Cmag
History: From electronic version of the journal References: Harris et al., Paper II 2004AJ....128..723H, Cat. J/AJ/128/723
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 24-Jan-2005
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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