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J/MNRAS/396/1075 Globular cluster in nearby dwarf galaxies. II (Georgiev+, 2009)

Globular cluster systems in nearby dwarf galaxies. II. Nuclear star clusters and their relation to massive Galactic globular clusters. Georgiev I.Y., Hilker M., Puzia T.H., Goudfrooij P., Baumgardt H. <Mon. Not. R. Astron. Soc., 396, 1075-1085 (2009)> =2009MNRAS.396.1075G
ADC_Keywords: Galaxies, nearby ; Associations, stellar ; Morphology Keywords: galaxies: dwarf - galaxies: irregular - galaxies: nuclei - galaxies: star clusters Abstract: We compare nuclear globular clusters (nGCs) in dwarf galaxies and Galactic GCs with extended (hot) horizontal branches (EHB-GCs) in order to test the suggested external origin of the latter and the conditions at which GC self-enrichment can operate. Using luminosities and structural parameters of nGCs in low-mass (mainly late-type) dwarf galaxies from Hubble Space Telescope (HST)/Advanced Camera for Surveys (ACS) imaging, we derive the present-day escape velocities (Vesc) of stellar ejecta to reach the cluster tidal radius and compare them with those of EHB-GCs. Description: Data reduction, photometry, completeness analysis, contamination and structural parameter measurements of all clusters are described in detail in Georgiev et al. (2008, Cat. J/AJ/135/1858 and 2009, Cat. J/MNRAS/392/879). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tables3.dat 84 175 Properties of nuclear clusters of late-type dwarf galaxies tables4.dat 82 140 Properties of Galactic globular clusters
See also: J/AJ/135/1858 : Old globular clusters in dwarf irr. galaxies (Georgiev+ 2008) J/MNRAS/392/879 : Globular clusters in nearby dwarf galaxies (Georgiev+, 2009) Byte-by-byte Description of file: tables3.dat
Bytes Format Units Label Explanations
1- 5 A5 --- GType Host galaxy type (dIrr, dE, dSph or Sm) 8- 18 A11 --- [GPH2009] Cluster name (Georgiev et al. 2009, Cat. J/MNRAS/392/879) 20- 24 F5.2 Mpc Dist Distance to the galaxy (1) 26- 30 F5.3 mag E(B-V) Foreground Galactic extinction E(B-V) from NED 32- 36 F5.3 mag (V-I)0 Cluster V-I color index (corrected for foreground extinction) 38- 43 F6.2 mag VMAG Cluster absolute V magnitude 45- 48 F4.2 [Msun] logM log10 of cluster mass 50- 53 F4.2 --- ell Cluster ellipticity 55- 59 F5.2 pc rh Cluster half-light radius 61- 64 F4.2 --- c concentration index, c=log(rt/rc) (ratio of tidal to core radius) 66- 71 F6.2 km/s Vesc Escape velocity to reach the tidal radius 73- 78 F6.1 pc rp Projected distance from the galaxy center 80- 84 F5.1 --- rp.n ? Projected distance normalized to galaxy effective radius reff (rp/reff) (2)
Note (1): Distance to the galaxy adopted from (Tully et al. 2006AJ....132..729T, Karachentsev et al. 2006AJ....131.1361K, and 2007, Cat. J/AJ/133/504) Note (2): where reff=sqrt(a*b), where a and b are the galaxy semi major and minor axes.
Byte-by-byte Description of file: tables4.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Cluster name 10 A1 --- --- [/] 11- 22 A12 --- OName Other name 24- 27 F4.2 mag E(B-V) Foreground Galactic extinction E(B-V) from Harris (1996, Cat. VII/195) 29- 33 F5.2 mag (V-I)0 ?=- Cluster V-I color index (corrected for foreground extinction) 35- 40 F6.2 mag VMAG Cluster absolute V magnitude 42- 45 F4.2 [Msun] logM log10 of cluster mass 47- 51 F5.2 pc rh Cluster half-light radius 53- 56 F4.2 --- c Concentration index, c=log(rt/rc) (ratio of tidal to core radius) 58- 62 F5.2 km/s Vesc Escape velocity to reach the tidal radius 64- 68 F5.2 [-] [Fe/H] Matallicity 70- 74 F5.2 --- HBR ?=- HB ratio HBR=(B-R)/(B+V+R) from Harris (1996, Cat. VII/195) 76- 79 A4 --- HBt ?=- HB morphology (1) 81- 82 A2 --- Class Classification (2)
Note (1): sEHB and mEHB, B and R for strong and moderately extended (from Lee et al. 2007ApJ...661L..49L), blue and red HBs, if HBR>0 or HBR<0, respectively. Note (2): Classification of the cluster according to which Galactic GC sub-population it belongs as follows: BD = bulge/disk OH = old halo YH = young halo SG = Saggitarius UN = unknown classification The cluster Class was adopted from Mackey & van den Bergh (2005MNRAS.360..631M), which follows the original Zinn (1993, ASP Conf. Ser. Vol. 48,, p. 38) classification.
History: From electronic version of the journal References: Georgiev et al., Paper I 2009MNRAS.392..879G, Cat J/MNRAS/392/879 Georgiev et al., Paper III 2010MNRAS.406.1967G
(End) Patricia Vannier [CDS] 14-Feb-2011
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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