J/A+A/653/A13 Lithium in NGC 2243 and NGC 104 (Aoki+, 2021)
Lithium in NGC 2243 and NGC 104.
Aoki M., Primas F., Pasquini L., Weiss A., Salaris M., Carollo D.
<Astron. Astrophys. 653, A13 (2021)>
=2021A&A...653A..13A 2021A&A...653A..13A (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, globular ; Abundances ; Radial velocities ;
Effective temperatures
Keywords: stars: abundances - techniques: spectroscopic -
globular clusters: individual: NGC 104 -
open clusters and associations: individual: NGC 2243
Abstract:
We aim to determine the initial Li content of two clusters of similar
metallicity but very different age, the old open cluster NGC 2243 and
the metal-rich globular cluster NGC 104. We compare the lithium
abundances derived for a large sample of stars (from the turn-off to
the red giant branch) in each cluster. For NGC 2243, the Li abundances
are taken from the catalogues released by the Gaia-ESO Public
Spectroscopic Survey, while for NGC 104 we measured the Li abundance
using FLAMES/GIRAFFE spectra, which include both archival data and new
observations.
Description:
The table contains the NGC 104 cluster members together with their
coordinates, photometry, radial velocities, SNR, effective
temperatures, logg values, and measured Li abundances. These
informations of our sample stars are listed in Table 2 of the article.
Objects:
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RA (2000) DE Designation(s)
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00 24 05.36 -72 04 53.2 NGC 104 = Cl Melotte 1
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 100 357 NGC 104 cluster members with their parameters
and measured Li abundances
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See also:
J/MNRAS/485/3042 : UBVRI photometry in 48 globular clusters (Stetson+, 2019)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Target star name
15- 16 I2 h RAh Right ascension (J2000.0)
18- 19 I2 min RAm Right ascension (J2000.0)
21- 25 F5.2 s RAs Right ascension (J2000.0)
27 A1 --- DE- Declination sign (J2000.0)
28- 29 I2 deg DEd Declination (J2000.0)
31- 32 I2 arcmin DEm Declination (J2000.0)
34- 38 F5.2 arcsec DEs Declination (J2000.0)
40- 44 F5.2 mag Vmag Visual magnitude (1)
46- 49 F4.2 mag B-V B-V magnitude (1)
51- 54 I4 K Teff Effective temperature
56- 58 I3 K e_Teff Error of Effective temperature
60- 63 F4.2 [cm/s2] logg Surface gravity
65- 68 F4.2 [cm/s2] e_logg Error of logg
70- 75 F6.2 --- SNR Signal to Noise Ratio at 6708A
77- 82 F6.2 km/s RV Radial velocity
84- 87 F4.2 km/s e_RV Error of radial velocity
89 A1 --- l_A(Li) Upper limit signal of Li abundance
91- 95 F5.2 [-] A(Li) Measured Li abundance
97-100 F4.2 [-] e_A(Li) ? Error of Li abundance
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Note (1): The optical photometry (B, V) were obtained from the UBVRI photometry
in 48 globular clusters (Stetson et al., 2019, Cat. J/MNRAS/485/3042).
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Acknowledgements:
Misa Aoki, 96minoko(at)gmail.com
(End) Patricia Vannier [CDS] 06-May-2021