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J/A+A/541/A150      Lithium in M67 and Hyades                   (Pace+, 2012)

Lithium in M67: from the main sequence to the red giant branch. Pace G., Castro M., Melendez M., Theado S., do Nascimento Jr.J.-D. <Astron. Astrophys. 541, A150 (2012)> =2012A&A...541A.150P
ADC_Keywords: Clusters, open ; Abundances ; Photometry ; Equivalent widths Keywords: stars: abundances - stars: atmosphere Abstract: Lithium abundances in open clusters are a very effective probe of mixing processes, and their study can help to understand the large depletion of lithium in the Sun. Due to its age and metallicity, the open cluster M67 is especially interesting on this regard. Many studies on lithium abundances in M67 have already been performed, but a homogeneous global analysis of lithium in stars from subsolar up to the most massive members, was never accomplished for a large sample based on high-quality spectra. We tested our non-standard models, which were calibrated using the Sun with observational data. We collected literature data to follow, for the first time in a homogeneous way, NLTE lithium abundances of all observed single stars in M67 more massive than about 0.9 solar masses. Description: Collection of literature data about lithium abundances, photometry, radial velocity and temperatures in stars in M67 (table1.dat) and the Hyades (table2.dat). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 125 103 Photometry, lithium abundances and parameters in M67 table2.dat 56 59 Photometry, lithium abundances and parameters in the Hyades
See also: J/MNRAS/253/610 : Li abundances for 81 F dwarfs (Lambert+, 1991) J/AJ/106/1059 : Lithium in the Pleiades (Soderblom+, 1993) J/AJ/106/1080 : Lithium in Praesepe (Soderblom+, 1993) J/A+A/363/239 : Lithium abundances in single giant stars (De Medeiros+, 2000) J/A+A/371/943 : Lithium abundances for 185 main-sequence stars (Chen+, 2001) J/A+A/372/862 : Lithium abundances in IC 2602 and IC 2391 (Randich+, 2001) J/A+A/409/251 : Li abundances and velocities in F and G stars (Mallik+, 2003) J/A+A/442/961 : Lithium content of Galactic Halo stars (Charbonnel+, 2005) J/A+A/475/539 : BV photometry & Li abundances in NGC3960 (Prisinzano+, 2007) J/A+A/479/141 : Iz photometry, RV and EW(Li) in IC 4665 (Manzi+, 2008) J/A+A/496/441 : Radial velocities of Berkeley 32 stars (Randich+, 2009) J/A+A/505/L13 : Lithium in globular NGC 6397 (Gonzalez Hernandez+, 2009) J/A+A/519/L3 : Lithium content of ω Cen (Monaco+, 2010) J/MNRAS/412/81 : Lithium abundance in M4 red giants (Mucciarelli+, 2011) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Star name (1) 11- 19 F9.5 deg RAdeg Right ascension in decimal degrees (J2000) 21- 28 F8.5 deg DEdeg Declination in decimal degrees (J2000) 30- 35 F6.3 mag Vmag V magnitude 37- 41 F5.3 mag B-V B-V colour index 43- 45 I3 % pmb ?=- Membership probability 47- 52 F6.3 km/s RV ? Radial velocity 54- 58 F5.3 [cm/s2] logg logarithm of the surface gravity (2) 60- 63 F4.2 mag Dist Distance in magnitudes of the data point in the CMD to the closest point on the isochrone of Castro et al., 2011A&A...526A..17C 65 I1 --- r_Aor Reference flag for the source of lithium abundance (3) 67- 70 F4.2 Msun Mass1 Mass computed with the BaSTI isochrone (Pietrinferni et al., 2004ApJ...612..168P) 72- 75 F4.2 Msun Mass2 Mass computed with the isochrone of Castro et al., 2011A&A...526A..17C 77- 81 F5.2 --- Aor Lithium abundance taken from reference in r_Aor 83- 86 I4 K Tor Temperature taken from the reference in r_Aor 88- 92 F5.2 --- Aiso1 Lithium abundance corrected according to Tiso1 94- 97 I4 K Tiso1 Temperature computed with the BaSTI isochrone 99-103 F5.2 --- Aiso2 Lithium abundance corrected according to Tiso2 105-108 I4 K Tiso2 Temperature computed with the isochrone of Castro et al. 2011A&A...526A..17C 110-114 F5.2 --- Acal Lithium abundance corrected according to Tcal 116 A1 --- l_Tcal Limit flag on Tcal (upper limit) 117-120 I4 K Tcal Temperature computed with photometric calibrations (4) 122-125 F4.2 --- e_Acal ? Error in the lithium abundance
Note (1): The identification system is either YBP, i.e. from Yadav et al. 2008, Cat. J/A+A/484/609, <Cl* NGC 2682 YBP NNNN> or Sand, from Sanders 1977A&AS...27...89S, <Cl* NGC 2682 Sand NNNNa>. RA, DE, V, B-V, vrad are taken from Yadav et al., 2008, Cat. J/A+A/484/609 for stars with YBP identifier, from the original source of lithium abundance for stars with Sanders identifier. Note (2): computed with the isochrone of Castro et al., 2011A&A...526A..17C. Note (3): References for lithium abundances as follows: 1 = Canto Martins et al., 2011A&A...527A..94C 2 = Castro et al., 2011A&A...526A..17C 3 = Pasquini et al., 2008A&A...489..677P 4 = Randich et al., 2007A&A...469..163R 5 = Jones, Fischer and Soderblom, 1999AJ....117..330J, original data 6 = Jones, Fischer and Soderblom, 1999AJ....117..330J, correction of literature measurements 7 = Balachandran, 1995ApJ...446..203B Note (4): Tcal is computed using either Casagrande (2010, Cat. J/A+A/512/A54) or, only for giants, Kucinskas et al. (2005, Cat. J/A+A/442/281)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- vB vanBueren identification number (1) 5- 8 F4.2 mag Vmag V magnitude 10- 14 F5.3 mag B-V B-V colour index 16- 19 I4 K Teff Effective temperature 21- 24 F4.2 [cm/s2] logg Logarithm of the surface gravity 26- 30 F5.3 Msun Mass Mass, in solar masses 32 A1 --- l_EW Limit flag on EW (upper limit) 33- 37 F5.1 0.1pm EW Equivalent width of the lithium line 39- 40 I2 0.1pm e_EW ? Error in the equivalent width 42 A1 --- l_A Limit flag on A (upper limit) 43- 46 F4.2 --- A Lithium abundance 48- 51 F4.2 --- e_A ? Error in the lithium abundance 53- 54 A2 --- r_EW Reference flag for the EW measurement (2) 56 A1 --- r_Vmag Reference flag for the photometry (3)
Note (1): vanBueren identification number is from van Bueren H.G. 1952BAN....11..385V, <Cl Melotte 25 NNN> in Simbad. Note (2): References for EW measurement as follows: Ra = Randich et al., 2007A&A...469..163R T = Thorburn et al., 1993ApJ...415..150T S = Soderblom et al., 1990AJ.....99..595S BB = Boesgaard & Budge, 1988ApJ...332..410B BT = Boesgaard & Tripicco, 1986ApJ...302L..49B D = Duncan & Jones, 1983ApJ...271..663D Re = Rebolo & Beckman, 1988A&A...201..267R Note (3): References for the photometry as follows: B = Balachandran, 1995ApJ...446..203B J = Joner et al., 2006, Cat. J/AJ/132/111 S = Simbad database
Acknowledgements: Giancarlo Pace, gpace(at)
(End) Giancarlo Pace [CAUP, Portugal], Patricia Vannier [CDS] 30-Mar-2012
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