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 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:
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FileName Lrecl Records Explanations
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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
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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
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Bytes Format Units Label Explanations
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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 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 2004ApJ...612..168P)
72- 75 F4.2 Msun Mass2 Mass computed with the isochrone of
Castro et al., 2011A&A...526A..17C 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 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
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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 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 2011A&A...526A..17C.
Note (3): References for lithium abundances as follows:
1 = Canto Martins et al., 2011A&A...527A..94C 2011A&A...527A..94C
2 = Castro et al., 2011A&A...526A..17C 2011A&A...526A..17C
3 = Pasquini et al., 2008A&A...489..677P 2008A&A...489..677P
4 = Randich et al., 2007A&A...469..163R 2007A&A...469..163R
5 = Jones, Fischer and Soderblom, 1999AJ....117..330J 1999AJ....117..330J, original data
6 = Jones, Fischer and Soderblom, 1999AJ....117..330J 1999AJ....117..330J, correction of
literature measurements
7 = Balachandran, 1995ApJ...446..203B 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)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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)
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Note (1): vanBueren identification number is from van Bueren H.G.
1952BAN....11..385V 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 2007A&A...469..163R
T = Thorburn et al., 1993ApJ...415..150T 1993ApJ...415..150T
S = Soderblom et al., 1990AJ.....99..595S 1990AJ.....99..595S
BB = Boesgaard & Budge, 1988ApJ...332..410B 1988ApJ...332..410B
BT = Boesgaard & Tripicco, 1986ApJ...302L..49B 1986ApJ...302L..49B
D = Duncan & Jones, 1983ApJ...271..663D 1983ApJ...271..663D
Re = Rebolo & Beckman, 1988A&A...201..267R 1988A&A...201..267R
Note (3): References for the photometry as follows:
B = Balachandran, 1995ApJ...446..203B 1995ApJ...446..203B
J = Joner et al., 2006, Cat. J/AJ/132/111
S = Simbad database
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Acknowledgements:
Giancarlo Pace, gpace(at)astro.up.pt
(End) Giancarlo Pace [CAUP, Portugal], Patricia Vannier [CDS] 30-Mar-2012