CDROM/AJ/V109/P0218 Catalogue of GC Profiles (Trager+ 1995) ================================================================================ Catalogue of Galactic Globular-Cluster Surface-Brightness Profiles S. C. Trager, Ivan R. King, & S. Djorgovski <1995, AJ, 109, 218> =1995AJ....109..218T ================================================================================ Abstract: We present a catalogue of surface-brightness profiles (SBPs) of 125 Galactic globular clusters, the largest such collection ever gathered. The SBPs are constructed from generally inhomogeneous data, but are based heavily on the Berkeley Globular Cluster Survey of Djorgovski & King. All but four of the SBPs have photometric zero points. We derive central surface brightnesses, King-model concentrations, core radii, half-light, and other fraction-of-light radii where data permit, and we briefly discuss their use. Description: The data file table1.txt is a plain text representation of the SBPs as given in the printed paper. Author-supplied documentation is provided for this file in table1.doc. The data for individual objects was extracted into separate files named for the object with the extension ".dat". The header information, which provides the Chebyshev and power-of-x coefficients were also extracted into separate files with the extension ".hdr". File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table1.txt 90 18797 Data points for SBPs table1.doc 69 26 Author-supplied documentation for table1.txt table1.idx 80 131 Index to data and header files -------------------------------------------------------------------------------- Byte-by-byte Description of files: *.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 7 F7.3 --- log_r Log of radius of surface brightness meas. 8-14 F7.2 mag mu_V Meas. surface brightness at r, in V mags. 15-21 F7.2 mag mu_Vf Fitted surface brightness at r, from Chebyshev fit 22-28 F7.2 mag Resid Residual of Chebyshev fit at r, mu_V - mu_Vf 29-36 F8.3 --- Weight Weight of data point in Chebyshev fit 37-38 2X --- --- Blank 39-48 A10 --- DataSet *Data set name -------------------------------------------------------------------------------- Notes for files: *.dat -------------------------------------------------------------------------------- DataSet: The CCD data follow a naming convention: "C" stands for data taken at CTIO; e.g. "CRB1" stands for the first "B" image from the CTIO 1.5m reflector with the RCA chip. "L" stands for the Lick 1 m Nickel reflector: these datasets are labeled as, e.g. "LTR-B", the second frame from the Lick Nickel reflector, taken with the T1 chip through the Spinrad "R" filter. See Sec. 2.1 of printed paper for details of chips and filters. "DJB2" stands for the second "B" image taken by Djorgovski. For Terzan 5, "I" refers to an I-band image from CTIO kindly provided by Dr. T. Armandroff. "UPGA.4" means the first ("A") ultraviolet ("U") plate used for photographic photometry ("PG") of the cluster in question. "SCAN" data are scanning photoelectric photometry. "ANN" data are centered-aperture photoelectric photometry. Photographic star counts are referenced by plate number; see caption to Figure 2 in printed paper for references. -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 26-Apr-1995