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J/A+AS/144/5     Nearby globular clusters photometric catalog (Rosenberg+, 2000)

Photometric catalog of nearby globular clusters. I. A large homogeneous (V,I) color-magnitude diagram data-base. Rosenberg A., Piotto G., Saviane I., Aparicio A. <Astron. Astrophys. Suppl. Ser. 144, 5 (2000)> =2000A&AS..144....5R
ADC_Keywords: Clusters, globular ; Photometry, UBVRI ; Radial velocities ; Abundances, [Fe/H] Keywords: astronomical data base: miscellaneous - catalogs - stars: Hertzsprung-Russel (HR) - stars: population II - globular clusters: general Abstract: We present the first part of the first large and homogeneous CCD color-magnitude diagram (CMD) data base, comprising 52 nearby Galactic globular clusters (GGC) imaged in the V and I bands using only two telescopes (one for each hemisphere). The observed clusters represent 75% of the known Galactic globulars with (m-M)V≤16.15mag, cover most of the globular cluster metallicity range (-2.2≤[Fe/H]≤-0.4), and span Galactocentric distances from ∼1.2 to ∼18.5kpc. In this paper, the CMDs for the 39 GGCs observed in the southern hemisphere are presented. The remaining 13 northern hemisphere clusters of the catalog are presented in a companion paper. For four clusters (NGC 4833, NGC 5986, NGC 6543, and NGC 6638) we present for the first time a CMD from CCD data. The typical CMD span from the 22nd V magnitude to the tip of the red giant branch. Based on a large number of standard stars, the absolute photometric calibration is reliable to the ∼0.02mag level in both filters. This catalog, because of its homogeneity, is expected to represent a useful data base for the measurement of the main absolute and relative parameters characterizing the CMD of GGCs. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 85 39 Identifications, positional data and metallicity estimates for the observed clusters table4.dat 72 39 Photometric parameters table5.dat 66 39 Kinematics, and structural parameters
See also: VII/13 : Globular-Cluster Catalog (Arp 1965) VII/44 : Star Clusters Associations II. Globular Clusters (Ruprecht+ 1981) VII/103 : Catalogue of Galactic globular clusters (Monella, 1985) VII/151 : Structure Parameters of Galactic Globular Clusters (Webbink 1985) II/117 : Catalog of UBVRI Photometry of Globular Clusters (Peterson 1986) VII/195 : Globular Clusters in the Milky Way (Harris, 1996) VII/202 : Globular Clusters in the Milky Way (Harris, 1997) J/A+A/328/83 : Globular clusters luminosity function (Chabrier+ 1997) J/AJ/109/218 : Catalogue of globular cluster profiles (Trager+ 1995) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 --- ID Identification number 4- 11 A8 --- Cluster Cluster name 13- 14 I2 h RAh Right ascension (J2000) 16- 17 I2 min RAm Right ascension (J2000) 19- 22 F4.1 s RAs Right ascension (J2000) 24 A1 --- DE- Declination sign (J2000) 25- 26 I2 deg DEd Declination (J2000) 28- 29 I2 arcmin DEm Declination (J2000) 31- 32 I2 arcsec DEs Declination (J2000) 34- 39 F6.2 deg GLON Galactic longitude 41- 46 F6.2 deg GLAT Galactic latitude 48- 51 F4.1 kpc Rsun Heliocentric distance (1) 53- 56 F4.1 kpc RGC Galactocentric distances 58- 62 F5.1 kpc X X spatial component toward the Galactic Center(2) 64- 67 F4.1 kpc Y Y spatial component in direction of Galactic rotation (2) 69- 73 F5.1 kpc Z Z spatial component towards North Galactic Plane (2) 75- 79 F5.2 --- [Fe/H]z ? Metallicity given in Rutledge et al. (1997PASP..109..907R) on the Zinn & West (1984ApJS...55...45Z) scale (3) 81- 85 F5.2 --- [Fe/H]c ? Metallicity given in Rutledge et al. (1997PASP..109..907R) on the Carretta & Gratton (1997, Cat. J/A+AS/121/95) scale
Note (1): Assuming R=8.0kpc Note (2): spatial components (X,Y,Z) in the Sun-centered coordinate system (X pointing toward the Galactic center, Y in direction of Galactic rotation, Z toward North Galactic Pole) Note (3): For 14 NGC 5139 and 34 NGC 6656, [Fe/H] values were taken directly from Zinn & West (1984ApJS...55...45Z)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 2 I2 --- ID Identification number 4- 11 A8 --- Cluster Cluster name 13- 16 F4.2 mag E(B-V) Foreground reddening 18- 22 F5.2 mag VHB V magnitude level of the horizontal branch 23 A1 --- n_VHB [*] Note on HB levels (1) 25- 28 F4.2 mag (m-M) Apparent visual distance modulus 30- 34 F5.2 mag IntVmag Integrated V magnitude of the cluster 36- 41 F6.2 mag VMAG Absolute visual magnitude 43- 46 F4.2 mag U-B ? Integrated U-B colour index 48- 51 F4.2 mag B-V ? Integrated B-V colour index 53- 56 F4.2 mag V-R ? Integrated V-R colour index 58- 61 F4.2 mag V-I ? Integrated V-I colour index 63- 66 F4.1 --- S(RR) ? Specific frequency of RR Lyrae variables (2) 68- 72 F5.2 --- HBR ? Horizontal-branch morphological parameter (3)
Note (1): *: HB levels measured directly on our CMDs. Note (2): The specific frequency is defined as S = Ntotal*100.4((MV_+15)^, where Ntotal is the total population, and MV the absolute V magnitude (Harris, 1991ApJS..76..115H) Note (3): Lee (1990ApJ...363..159L), HB ratio: HBR=(B-R)/(B+V+R)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 2 I2 --- ID Identification number 4- 11 A8 --- Cluster Cluster name 13- 18 F6.1 km/s HRV ? Heliocentric radial velocity 20- 22 F3.1 km/s e_HRV ? rms uncertainty on HRV 24- 29 F6.1 km/s Vlsr ? Radial velocity relative to the (LSR) 31- 34 F4.2 --- C ? Concentration parameter [C=log(rt/rc) 35 A1 --- n_C [c] c: core-collapsed cluster 37- 40 F4.2 arcmin Radc Core radius 42- 45 F4.2 arcmin Radh Half mass radius 47- 50 F4.2 [yr] log(tc) Log. of the core relaxation time 52- 55 F4.2 [yr] log(th) ? Log. of the relaxation time at the half mass radius 57- 61 F5.2 mag/arcsec+2 SuBr Central surface brightness in V 63- 66 F4.2 [solLum/pc+3] rho Log. of central luminosity density
History: From A&AS electronic version
(End) James Marcout, Patricia Bauer [CDS] 02-Oct-2000
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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