J/AJ/109/218 Catalogue of globular cluster profiles (Trager+ 1995)
Catalogue of Galactic globular-cluster surface-brightness profiles
Trager S.C., King I.R., Djorgovski S.
<Astron. J. 109, 218 (1995)>
=1995AJ....109..218T 1995AJ....109..218T
ADC_Keywords: Clusters, globular ; Photometry, surface
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 for individual objects are in tables file. The header
information, which provides the Chebyshev and power-of-x coefficients,
for each cluster are in tables.hdr file
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
gc.dat 28 125 Globular cluster sample (table added by CDS)
tables.dat 55 17148 Data points for surface-brightness profiles (SBP)
tables.hdr 90 1525 Chebyshev and power-of-x coefficients
--------------------------------------------------------------------------------
See also:
II/117 : Catalog of UBVRI Photometry of Globular Clusters (Peterson 1986)
VII/151 : Structure Parameters of Galactic Globular Clusters (Webbink 1985)
Byte-by-byte Description of file: gc.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Name Cluster name
10- 28 A19 --- SName Cluster name understandable by SIMBAD
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tables.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Name *Cluster name
10- 15 F6.3 [arcsec] logr Log of radius of surface brightness meas.
18- 22 F5.2 mag/arcsec2 muV Meas. surface brightness at r, in V mags.
25- 29 F5.2 mag/arcsec2 muVf Fitted surface brightness at r, from
Chebyshev fit
31- 36 F6.2 mag/arcsec2 Resid Residual of Chebyshev fit at r, muV-muVf
40- 44 F5.3 --- Weight [0/1] Weight of data point in Chebyshev fit
47- 55 A9 --- DataSet *Data set name
--------------------------------------------------------------------------------
Note on Name: hp stands for HP 1, <Cl Haute-Provence 1> in Simbad
Note on 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 1m 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.
--------------------------------------------------------------------------------
Origin: AAS CD-ROM series, Volume 4, 1995 Lee Brotzman [ADS] 26-Apr-1995
History:
* 10-Jul-1995: from AAS CD-ROM series, Volume 4, 1995 (Lee Brotzman)
* 28-Nov-2014: addition of the "gc.dat" file
(End) [CDS] 10-Jul-1995