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J/A+A/464/967       Abundances of red giants in NGC 6388      (Carretta+, 2007)

Na-O Anticorrelation and HB. VI. The chemical composition of the peculiar bulge globular cluster NGC 6388. Carretta E., Bragaglia A., Gratton R.G., Momany Y., Recio-Blanco A., Cassisi S., Francois P., James G., Lucatello S., Moehler S. <Astron. Astrophys. 464, 967 (2007)> =2007A&A...464..967C
ADC_Keywords: Clusters, globular ; Stars, population II ; Abundances ; Radial velocities Keywords: stars: abundances - stars: atmospheres - stars: Population II - Galaxy: globular clusters: general - Galaxy: globular clusters: individual: NGC 6388 Abstract: We present the LTE abundance analysis of high resolution spectra for red giant stars in the peculiar bulge globular cluster NGC 6388. Spectra of seven members were taken using the UVES spectrograph at the ESO VLT2 and the multiobject FLAMES facility. We exclude any intrinsic metallicity spread in this cluster: on average, [Fe/H]=-0.44±0.01±0.03dex on the scale of the present series of papers, where the first error bar refers to individual star-to-star errors and the second is systematic, relative to the cluster. Elements involved in H-burning at high temperatures show large spreads, exceeding the estimated errors in the analysis. In particular, the pairs Na and O, Al and Mg are anticorrelated and Na and Al are correlated among the giants in NGC 6388, the typical pattern observed in all galactic globular clusters studied so far. Stars in NGC 6388 shows an excess of alpha-process elements, similar to the one found in the twin bulge cluster NGC 6441. Mn is found underabundant in NGC 6388, in agreement with the average abundance ratio shown by clusters of any metallicity. Abundances of neutron-capture elements are homogeneously distributed within NGC 6388; the [Eu/Fe] ratio stands above the value found in field stars of similar metallicity. Description: Spectra for 13 RGB stars in NGC 6388 were obtained with UVES/FLAMES@VLT; based on radial velocity, 7 of them resulted member stars. Abundances of Fe, O, Na, alpha-elements and heavier elements were derived using equivalent widths, model atmospheres and atmospheric parameters based on photometry. For each star we give identification, equatorial coordinates, VBIJK magnitudes, heliocentric radial velocity. For the 7 member stars we also present Teff, logg, [A/H], v_t, [Fe/H], [O/Fe], [Na/Fe], [Mg/Fe], [Al/Fe], [Si/Fe], [Ca/Fe], [Sc/Fe], [Ti/Fe], [V/Fe], [Cr/Fe], [Mn/Fe], [Co/Fe], [Ni/Fe], [Y/Fe], [Zr/Fe], [Ba/Fe], [La/Fe], [Ce/Fe], and [Eu/Fe]. We present here the EWs for all the above elements for the 7 member stars. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 80 13 List and relevant informations for the target stars observed in NGC 6388 with UVES table3.dat 40 2324 Equivalent widths
See also: J/A+A/455/271 : Abundances of red giants in NGC 6441 (Gratton+, 2006) J/A+A/464/927 : Abundances of red giants in NGC 6752 (Carreta+, 2007) J/A+A/464/953 : Abundances of red giants in NGC 6441 (Gratton+, 2007) J/A+A/464/939 : Abundances of red giants in NGC 6218 (Carreta+, 2007) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 6 I6 --- ID Identification number 8 I1 --- Fiber [1/2] fiber configuration 10- 11 I2 h RAh Right ascension (J2000) (1) 13- 14 I2 min RAm Right ascension (J2000) (1) 16- 21 F6.3 s RAs Right ascension (J2000) (1) 23 A1 --- DE- Declination sign (J2000) (1) 24- 25 I2 deg DEd Declination (J2000) (1) 27- 28 I2 arcmin DEm Declination (J2000) (1) 30- 34 F5.2 arcsec DEs Declination (J2000) (1) 36- 41 F6.3 mag Vmag Johnson V magnitude (1) 43- 48 F6.3 mag Bmag Johnson B magnitude (1) 50- 55 F6.3 mag Icmag Cousins I magnitude (1) 57- 62 F6.3 mag Jmag 2MASS J magnitude 64- 69 F6.3 mag Kmag 2MASS K magnitude 71- 77 F7.2 km/s HRV Heliocentric radial velocity 79- 80 A2 --- Memb [NM ] M=Member, NM=non member
Note (1): Data from Momany et al. (2004A&A...420..605M)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 6 I6 --- ID Identification number 8- 12 A5 --- El Element 16- 22 F7.2 0.1nm Lambda Wavelength 24- 27 F4.2 eV EP Excitation Potential 29- 34 F6.2 --- loggf Oscillator strength 36- 40 F5.1 0.1pm EW Equivalent width (mÅ)
Acknowledgements: Eugenio Carretta, eugenio.carretta(at)oabo.inaf.it References: Carreta et al., Paper I, NGC 2808 2006A&A...450..523C Carreta et al., Paper II, NGC 6752 2007A&A...464..927C, Cat. J/A+A/464/927 Gratton et al., Paper III, NGC 6441 2006A&A...455..271G, Cat. J/A+A/455/271 Carreta et al., Paper IV, NGC 6218 2007A&A...464..939C, Cat. J/A+A/464/939 Gratton et al., Paper V, NGC 6441 2007A&A...464..953G, Cat. J/A+A/464/953
(End) Patricia Vannier [CDS] 22-Feb-2007
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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