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J/A+A/508/1285  Metallicity estimates of M31 globular clusters  (Galleti+, 2009)

An updated survey of globular clusters in M 31. III. A spectroscopic metallicity scale for the revised Bologna catalog. Galleti S., Bellazzini M., Buzzoni A., Federici L., Fusi Pecci F. <Astron. Astrophys., 508, 1285-1299 (2009)> =2009A&A...508.1285G
ADC_Keywords: Galaxies, nearby ; Clusters, globular ; Abundances Keywords: galaxies: individual: M 31 - galaxies: star clusters - catalogs - Local Group Abstract: We present a new homogeneous set of metallicity estimates based on Lick indices for the old globular clusters of the M31 galaxy. The final aim is to add homogeneous spectroscopic metallicities to as many entries as possible of the Revised Bologna Catalog of M31 (www.bo.astro.it/M31) clusters, by reporting Lick index measurements from any source (literature, new observations, etc.) on the same scale. Description: New empirical relations of [Fe/H] as a function of [MgFe] and Mg2 indices are based on the well-studied galactic globular clusters, complemented with theoretical model predictions for -0.2≤[Fe/H]≤+0.5. Lick indices for M31 clusters from various literature sources (225 clusters) and from new observations by our team (71 clusters) have been transformed into the Trager et al. (2000AJ....119.1645T) system, yielding new metallicity estimates for 245 globular clusters of M31. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 88 88 Lick indices for M31 globular clusters from new observations (Sect. 3.1) tablea2.dat 88 296 Lick indices for M31 globular clusters taken from literature sources and reported into the Trager et al. (1998, Cat. J/ApJS/116/1) system (T98, Sect. 3.2) tablea3.dat 18 245 Metallicities for M31 globular clusters
See also: J/A+A/416/917 : M31 globular clusters revised Bologna Catalog (Galleti+, 2004) J/A+A/456/985 : Radial velocities of 76 M31 candidate clusters (Galleti+, 2006) J/A+A/471/127 : New globular clusters in M31 (Galleti+, 2007) Byte-by-byte Description of file: tablea[12].dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster name 7 A1 --- f_Cluster [*] Non-cluster (1) 9- 13 F5.3 mag Mg2 Mg2 metallicity index 15- 19 F5.3 mag e_Mg2 rms uncertainty on Mg2 21- 26 F6.3 0.1nm Mgb Mgb metallicity index 28- 32 F5.3 0.1nm e_Mgb rms uncertainty on Mgb 34- 39 F6.3 0.1nm Fe5270 Fe5270 metallicity index 41- 45 F5.3 0.1nm e_Fe5270 rms uncertainty on Fe5270 47- 52 F6.3 0.1nm Fe5335 ?=99.999 Fe5335 metallicity index 54- 59 F6.3 0.1nm e_Fe5335 ?=99.999 rms uncertainty on Fe5335 61- 66 F6.3 0.1nm Fe5406 ?=99.999 Fe5406 metallicity index 68- 73 F6.3 0.1nm e_Fe5406 ?=99.999 rms uncertainty on Fe5406 75- 79 F5.2 0.1nm Hbeta ?=99.999 Hβ index 81- 84 F4.2 0.1nm e_Hbeta ?=9.99 rms uncertainty on Hbeta 86 I1 --- y [0/7] BLCC (blue luminous compact clusters) code (2) 88 I1 --- Set [0/7] Origin of the data (3)
Note (1): *: Clusters are classified by Caldwell et al. (2009AJ....137...94C) as non-clusters and in the following analysis are not considered Note (2): BLCC (young cluster) from Fusi Pessi et al. (2005AJ....130..554F) code as follows: 0 = old cluster 1 = color selected 2 = Hβ selected 3 = color and Hβ selected 4 = reportedly young objects by other authors and 5 = unconfirmed GCs and reportedly young and/or possible candidates BLCC with (B-V)0<0.45 7 = classified young by Caldwell et al. (2009AJ....137...94C) Note (3): Dataset code as follows: 0 = Trager et al. (1998, Cat. J/ApJS/116/1) 1 = Puzia et al . (2005A&A...434..909P) 2 = Beasley et al. (2004AJ....128.1623B) 3 = WHT data (AF2/WYFFOS multi-fiber spectrograph at the 4.2m William Herschel telescope) 4 = Perrett et al. (2002, Cat. J/AJ/123/2490) 5 = Huchra et al. (1991ApJ...370..495H) 6 = TNG data (DoLoRes spectrograph at 3.5m Telescopio Nazionale Galileo at La Palma) 7 = LOI data (BFOSC at Cassini 1.52m telescope of the Loiano Observatory, Bologna, Italy)
Byte-by-byte Description of file: tablea3.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Cluster Cluster name 7 A1 --- n_Cluster [*] * for Cluster classified as young by Caldwell et al. (2009AJ....137...94C) 9- 13 F5.2 [-] [Fe/H] Metallicity 15- 18 F4.2 [-] e_[Fe/H] rms uncertainty on [Fe/H]
History: From electronic version of the journal References: Galleti et al., Paper I 2006A&A...456..985G, Cat. J/A+A/456/985 Galleti et al., Paper II 2007A&A...471..127G, Cat. J/A+A/471/127
(End) Patricia Vannier [CDS] 20-Apr-2010
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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