J/A+A/643/A71 Members for 20 open clusters (Gutierrez Albarran+, 2020)
The Gaia-ESO Survey: Calibrating the lithium-age relation with open clusters and
associations. I. Cluster age range and initial membership selections.
Gutierrez Albarran M.L., Montes D., Gomez Garrido M., Tabernero H.M.,
Gonzalez Hernandez J.I., Marfil E., Frasca A., Lanzafame A.C., Klutsch A.,
Franciosini E., Randich S., Smiljanic R., Korn A.J., Gilmore G.,
Alfaro E.J., Baratella M., Bayo A., Bensby T., Bonito R., Carraro G.,
Delgado Mena E., Feltzing S., Gonneau A., Heiter U., Hourihane A.,
Jimenez Esteban F., Jofre P., Masseron T., Monaco L., Morbidelli L.,
Prisinzano L., Roccatagliata V., Sousa S., Van der Swaelmen M., Worley C.C.,
Zaggia S.
<Astron. Astrophys. 643, A71 (2020)>
=2020A&A...643A..71G 2020A&A...643A..71G (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Associations, stellar ; Abundances ;
Stars, late-type ; Radial velocities ; Spectroscopy
Keywords: open clusters and associations: general - stars: late-type -
stars: abundances - techniques: spectroscopic
Abstract:
Previous studies of open clusters have shown that lithium depletion is
not only strongly age dependent but also shows a complex pattern with
other parameters that is not yet understood. For pre- and
main-sequence late-type stars, these parameters include metallicity,
mixing mechanisms, convection structure, rotation, and magnetic
activity. We perform a thorough membership analysis for a large number
of stars observed within the Gaia-ESO survey (GES) in the field of 20
open clusters, ranging in age from young clusters and associations, to
intermediate-age and old open clusters. Based on the parameters
derived from the GES spectroscopic observations, we obtained lists of
candidate members for each of the clusters in the sample by deriving
RV distributions and studying the position of the kinematic selections
in the EW(Li) versus Teff plane to obtain lithium members. We used
gravity indicators to discard field contaminants and studied [Fe/H]
metallicity to further confirm the membership of the candidates. We
also made use of studies using recent data from the Gaia DR1 and DR2
releases to assess our member selections. We identified likely member
candidates for the sample of 20 clusters observed in GES (iDR4) with
UVES and GIRAFFE, and conducted a comparative study that allowed us to
characterize the properties of these members, as well as identify
field contaminant stars, both lithium-rich giants and non-giant
outliers.
This work is the first step towards the calibration of the lithium-age
relation and its dependence on other GES parameters. During this
project we aim to use this relation to infer the ages of GES field
stars, and identify their potential membership to young associations
and stellar kinematic groups of different ages.
Description:
The 20 tables, which conform Appendix C in our paper, show the results
of our analysis and the final selections of candidate members for each
cluster, as well as the lists of giant and non-giant contaminants of
interest also studied in this work. We indicate here for reference the
columns for each table: The star ID, the GES object name from
coordinates (CNAME), the RV of each star with its error, Teff with
error, logg with error, gamma index with error (for the young
clusters), [Fe/H] metallicity with error, corrected values of EW(Li)
with error, and flags for EW(Li) errors (see footnotes in the tables
for more details). These are followed by the membership analysis
columns, listing all candidates following all our criteria (RV,
EW(Li), logg and/or gamma index, [Fe/H]), as well as additional
columns, whenever possible, listing candidates according to different
studies from the literature. Each table ends with the list of final
candidate members and non-members, as well as a final column listing
the giant and non-giant contaminants with Li.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
br44.dat 101 93 Membership analysis and selection for Berkeley 44
br81.dat 101 269 Membership analysis and selection for Berkeley 81
m67.dat 101 21 Membership analysis and selection for M 67
ngc2516.dat 101 740 Membership analysis and selection for NGC 2516
ngc4815.dat 101 200 Membership analysis and selection for NGC 4815
ngc6005.dat 108 552 Membership analysis and selection for NGC 6005
ngc6633.dat 108 1630 Membership analysis and selection for NGC 6633
ngc6705.dat 108 737 Membership analysis and selection for NGC 6705
ngc6802.dat 108 187 Membership analysis and selection for NGC 6802
pismis18.dat 101 124 Membership analysis and selection for Pismis 18
tr20.dat 101 1361 Membership analysis and selection for Trumpler 20
tr23.dat 108 147 Membership analysis and selection for Trumpler 23
ngc2243.dat 99 747 Membership analysis and selection for NGC 2243
cha.dat 118 710 Membership analysis and selection for Cha I
ic2391.dat 118 419 Membership analysis and selection for IC 2391
ic2602.dat 118 1826 Membership analysis and selection for IC 2602
ic4665.dat 118 560 Membership analysis and selection for IC 4665
rho.dat 118 309 Membership analysis and selection for rho Oph
gamma.dat 110 1251 Membership analysis and selection for Gamma Vel
ngc2547.dat 105 454 Membership analysis and selection for NGC 2547
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See also:
J/A+A/567/A55 : Metallicity of the γ Vel cluster (Spina+, 2014)
J/A+A/563/A94 : Kinematics of the Gamma Vel cluster (Jeffries+, 2014)
J/A+A/566/A50 : Classification of stellar spectra 644-681nm (Damiani+, 2014)
J/A+A/574/L7 : Gaia-ESO Survey: Li-rich stars in NGC2547 (Sacco+, 2015)
J/A+A/575/A4 : Activity and accretion in γ Vel and Cha I (Frasca+, 2015)
J/A+A/589/A70 : Gamma Vel cluster membership and IMF (Prisinzano+, 2016)
J/A+A/612/A99 : Gaia-ESO Survey in 7 open star cluster fields (Randich+, 2018)
J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)
J/A+A/626/A80 : Census of Rho Oph candidate members from Gaia DR2
(Canovas+, 2019)
Byte-by-byte Description of file: [bmpt]*.dat ngc2516.dat ngc[46]*.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- ID Star ID
7- 22 A16 --- CNAME GES object name from coordinates
(HHMMSSss+DDMMSSs)
24- 29 F6.1 km/s RV ? Radial velocity
31- 35 F5.1 km/s e_RV ? Radial velocity error
37- 40 I4 K Teff ? Effective temperature
42- 45 I4 K e_Teff ? Effective temperature error
47- 50 F4.2 [cm/s2] logg ? Surface gravity
52- 55 F4.2 [cm/s2] e_logg ? Surface gravity error
57- 61 F5.2 [-] [Fe/H] ? Metallicity
63- 67 F5.3 [-] e_[Fe/H] ? Metallicity error
69 A1 --- l_EW(Li) Limit flag on EW(Li)
70- 72 I3 0.1pm EW(Li) ? Corrected equivalent width of Li (G1)
74- 78 F5.1 0.1pm e_EW(Li) ? Corrected equivalent width of Li error
80 I1 --- feEW(Li) ? Flag for EW(Li) error (G2)
82- 84 A3 --- MembRV [Y?f N] Membership analysis,
RV criterium (G3)
86- 87 A2 --- MembEW(Li) [Y? -N] Membership analysis,
EW(Li) criterium (G3)
88- 89 A2 --- Memblogg [Y? -N] Membership analysis,
logg criterium (G3)
90 A1 --- Memb[Fe/H] [Y-N] Membership analysis,
[Fe/H] criterium (G3)
92 A1 --- R2018 [Y-N] Cluster candidates according to
Randich et al.
(2018, Cat. J/A+A/612/A99) (G3)
94 A1 --- CG2018 [Y-N] Cluster candidates according to
Cantat-Gaudin et al.
(2018, Cat. J/A+A/618/A93) (G3)
96- 98 A3 --- Final [Y?ge -n] Final candidate members and
non-members (G3)
100-108 A9 --- Non-memb Giant and non-giant contaminants
with Li (G4)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: ngc2243.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- ID Star ID
7- 22 A16 --- CNAME GES object name from coordinates
(HHMMSSss+DDMMSSs)
24- 30 F7.2 km/s RV ? Radial velocity
32- 35 F4.2 km/s e_RV ? Radial velocity error
37- 40 I4 K Teff ? Effective temperature
42- 45 I4 K e_Teff ? Effective temperature error
47- 50 F4.2 [cm/s2] logg ? Surface gravity
52- 55 F4.2 [cm/s2] e_logg ? Surface gravity error
57- 61 F5.2 [-] [Fe/H] ? Metallicity
63- 66 F4.2 [-] e_[Fe/H] ? Metallicity error
68 A1 --- l_EW(Li) Limit flag on EW(Li)
69- 71 I3 0.1pm EW(Li) ? Corrected equivalent width of Li (G1)
73- 75 I3 0.1pm e_EW(Li) ? Corrected equivalent width of Li error
77 I1 --- feEW(Li) ? Flag for EW(Li) error (G2)
79 A1 --- MembRV [YN-] Membership analysis,
gamma criterium (G3)
81 A1 --- MembEW(Li) [YN-] Membership analysis,
EW(Li) criterium (G3)
83 A1 --- Memblogg [YN-] Membership analysis,
logg criterium (G3)
85 A1 --- Memb[Fe/H] [YN-] Membership analysis,
[Fe/H] criterium (G3)
87 A1 --- CG2018 [YN-] Cluster candidates according to
Cantat-Gaudin et al.
(2018, Cat. J/A+A/618/A93) (G3)
89 A1 --- Final [YNn-] Final candidate members and
non-members (G3)
91- 99 A9 --- Non-memb Giant and non-giant contaminants
with Li (G4)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: cha.dat ic*.dat rho.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- ID Star ID
7- 22 A16 --- CNAME GES object name from coordinates
(HHMMSSss+DDMMSSs)
23 A1 --- n_CNAME [f] Note on CNAME (1)
25- 30 F6.1 km/s RV ? Radial velocity
32- 36 F5.1 km/s e_RV ? Radial velocity error
38- 41 I4 K Teff ? Effective temperature
43- 45 I3 K e_Teff ? Effective temperature error
47- 50 F4.2 [cm/s2] logg ? Surface gravity
52- 55 F4.2 [cm/s2] e_logg ? Surface gravity error
57- 61 F5.3 --- gamma ? Gamma index (2)
63- 67 F5.3 --- e_gamma ? Gamma index error
69- 73 F5.2 [-] [Fe/H] ? Metallicity
75- 78 F4.2 [-] e_[Fe/H] ? Metallicity error
80 A1 --- l_EW(Li) Limit flag on EW(Li)
81- 83 I3 0.1pm EW(Li) ? Corrected equivalent width of Li (G1)
85- 86 I2 0.1pm e_EW(Li) ? Corrected equivalent width of Li error
88 I1 --- feEW(Li) ? Flag for EW(Li) error (G2)
90 A1 --- Membgamma [Y-N] Membership analysis, gamma criterium
92 A1 --- Memblogg [Y-N] Membership analysis, logg criterium
94 A1 --- MembRV [Y-N] Membership analysis, RV criterium
96 A1 --- MembEW(Li) [Y-N] Membership analysis, EW(Li) criterium
98 A1 --- MembHalpha [Y-N] Membership analysis, Halpha criterium
100 A1 --- Memb[Fe/H] [Y-N] Membership analysis, [Fe/H] criterium
102 A1 --- R2018 [YnN-] Cluster candidates according to
Randich et al. (2018, Cat. J/A+A/612/A99)
104 A1 --- CG2018 [Y-Nn] Cluster candidates according to
(Cantat-Gaudin et al., 2018,
Cat. J/A+A/618/A93)
105 A1 --- C2019 Cluster candidates according to
Canovas et al. (2019, Cat. J/A+A/626/A80)
106-108 A3 --- Final [Yg? n-] Final candidate members and
non-members (G3)
110-118 A9 --- Non-memb Giant and non-giant contaminants
with Li (G4)
--------------------------------------------------------------------------------
Note (1): f: strong accretor members.
Note (2): Empirical gravity indicator defined by
Damiani et al. (2014, Cat. J/A+A/566/A50).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: gamma.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- ID Star ID
7- 22 A16 --- CNAME GES object name from coordinates
(HHMMSSss+DDMMSSs)
24- 29 F6.1 km/s RV ? Radial velocity
31- 35 F5.1 km/s e_RV ? Radial velocity error
37- 40 I4 K Teff ? Effective temperature
42- 44 I3 K e_Teff ? Effective temperature error
46- 49 F4.2 [cm/s2] logg ? Surface gravity
51- 54 F4.2 [cm/s2] e_logg ? Surface gravity error
56- 60 F5.3 --- gamma ? Gamma index (1)
62- 66 F5.3 --- e_gamma ? Gamma index error
68- 72 F5.2 [-] [Fe/H] ? Metallicity
74- 77 F4.2 [-] e_[Fe/H] ? Metallicity error
79 A1 --- l_EW(Li) Limit flag on EW(Li)
80- 82 I3 0.1pm EW(Li) ? Corrected equivalent width of Li (G1)
84- 86 I3 0.1pm e_EW(Li) ? Corrected equivalent width of Li error
88 I1 --- feEW(Li) ? Flag for EW(Li) error (G2)
90 A1 --- J2014 [YN-AB] Cluster candidates according to
Pop. Jeffries et al.
(2014, Cat. J/A+A/563/A94) (2)
92 A1 --- D2014 [YN-] Cluster candidates according to
Damiani et al.
(2014, Cat. J/A+A/566/A50) (G3)
94 A1 --- S2014 [YN-] Cluster candidates according to
Spina et al.
(2014, Cat. J/A+A/567/A55) (G3)
96 A1 --- F2015 [YN-] Cluster candidates according to
Frasca et al. (2015, Cat. J/A+A/575/A4)
study (G3)
98 A1 --- P2016 [YN-] Cluster candidates according to
Prisinzano et al.
(2016, Cat. J/A+A/589/A70) (G3)
100 A1 --- Final [YNn-] Final candidate members and
non-members (G3)
102-110 A9 --- Non-memb Giant and non-giant contaminants
with Li (G4)
--------------------------------------------------------------------------------
Note (1): Empirical gravity indicator defined by
Damiani et al. (2014, Cat. J/A+A/566/A50).
Note (2): The letters "Y" and "N" indicate if the star is a cluster member
or not. A for Pop A., B for Pop. B.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: ngc2547.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- ID Star ID (number or F)
7- 22 A16 --- CNAME GES object name from coordinates
(HHMMSSss+DDMMSSs)
24- 29 F6.1 km/s RV ? Radial velocity
31- 35 F5.1 km/s e_RV ? Radial velocity error
37- 40 I4 K Teff ? Effective temperature
42- 44 I3 K e_Teff ? Effective temperature error
46- 49 F4.2 [cm/s2] logg ? Surface gravity
51- 54 F4.2 [cm/s2] e_logg ? Surface gravity error
56- 60 F5.3 --- gamma ? Gamma index (1)
62- 66 F5.3 --- e_gamma ? Gamma index error
68- 72 F5.2 [-] [Fe/H] ? Metallicity
74- 77 F4.2 [-] e_[Fe/H] ? Metallicity error
79 A1 --- l_EW(Li) Limit flag on EW(Li)
80- 82 I3 0.1pm EW(Li) ? Corrected equivalent width of Li (G1)
84- 85 I2 0.1pm e_EW(Li) ? Corrected equivalent width of Li error
87 I1 --- feEW(Li) ? Flag for EW(Li) error (G2)
89 A1 --- PopS2015 Cluster candidates according to
Sacco et al. (2015, Cat. J/A+A/574/L7) (G3)
91 A1 --- PopR2018 Cluster candidates according to
Randich et al.
(2018, Cat. J/A+A/612/A99) (G3)
93 A1 --- PopCG2018 Cluster candidates according to
Cantat-Gaudin et al.
(2018, Cat. J/A+A/618/A93) (G3)
95 A1 --- Popfinal Final candidate members and non-members (G3)
97-105 A9 --- Non-memb Giant and non-giant contaminants
with Li (G4)
--------------------------------------------------------------------------------
Note (1): Empirical gravity indicator defined by
Damiani et al. (2014, Cat. J/A+A/566/A50).
--------------------------------------------------------------------------------
Global notes:
Note (G1): The values of EW(Li) for this cluster are corrected (subtracted
adjacent Fe (6707.43Å line).
Note (G2): Flags for the errors of the corrected EW(Li) values, as follows:
1 = EW(Li) corrected by blends contribution using models
2 = EW(Li) measured separately (Li line resolved - UVES only)
3 = Upper limit (no error for EW(Li) is given).
Note (G3): The letters "Y" and "N" indicate if the star is a cluster member
or not, ? for uncertain.
e = For more details about the membership of the stars listed as possible
candidates in the table, see the individual notes Appendix A for M67,
in the paper.
g = For more details about the membership of the particular stars marked
in the table, see the individual notes of Appendix A for NGC 6633
or IC4665, in the paper.
Note (G4): "Li-rich G", "G" and "NG" indicate "Li-rich giant", "giant"
and "non-giant" Li field contaminants, respectively.
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Acknowledgements:
Marta Gutierrez Albarran, mlgutierrez(at)ucm.es
(End) Marta Gutierrez Albarran [UCM, Spain], Patricia Vannier [CDS] 12-Aug-2020