The Gaia -ESO Survey: Calibrating the lithium-age relation with open clusters and associations: I. Cluster age range and initial membership selections

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The Gaia -ESO Survey : Calibrating the lithium-age relation with open clusters and associations: I. Cluster age range and initial membership selections. / Albarrán, M. L.Gutiérrez; Montes, D.; Garrido, M. Gómez; Tabernero, H. M.; Hernández, J. I.González; 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.; Esteban, F. Jiménez; Jofre, P.; Masseron, T.; Monaco, L.; Morbidelli, L.; Prisinzano, L.; Roccatagliata, V.; Sousa, S.; Van Der Swaelmen, M.; Worley, C. C.; Zaggia, S.

In: Astronomy and Astrophysics, Vol. 643, aa37620, 01.11.2020.

Research output: Contribution to journalArticle

Harvard

Albarrán, MLG, Montes, D, Garrido, MG, Tabernero, HM, Hernández, JIG, Marfil, E, Frasca, A, Lanzafame, AC, Klutsch, A, Franciosini, E, Randich, S, Smiljanic, R, Korn, AJ, Gilmore, G, Alfaro, EJ, Baratella, M, Bayo, A, Bensby, T, Bonito, R, Carraro, G, Delgado Mena, E, Feltzing, S, Gonneau, A, Heiter, U, Hourihane, A, Esteban, FJ, Jofre, P, Masseron, T, Monaco, L, Morbidelli, L, Prisinzano, L, Roccatagliata, V, Sousa, S, Van Der Swaelmen, M, Worley, CC & Zaggia, S 2020, 'The Gaia -ESO Survey: Calibrating the lithium-age relation with open clusters and associations: I. Cluster age range and initial membership selections', Astronomy and Astrophysics, vol. 643, aa37620. https://doi.org/10.1051/0004-6361/202037620

APA

Albarrán, M. L. G., Montes, D., Garrido, M. G., Tabernero, H. M., Hernández, J. I. G., 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., ... Zaggia, S. (2020). The Gaia -ESO Survey: Calibrating the lithium-age relation with open clusters and associations: I. Cluster age range and initial membership selections. Astronomy and Astrophysics, 643, [aa37620]. https://doi.org/10.1051/0004-6361/202037620

CBE

Albarrán MLG, Montes D, Garrido MG, Tabernero HM, Hernández JIG, Marfil E, Frasca A, Lanzafame AC, Klutsch A, Franciosini E, Randich S, Smiljanic R, Korn AJ, Gilmore G, Alfaro EJ, Baratella M, Bayo A, Bensby T, Bonito R, Carraro G, Delgado Mena E, Feltzing S, Gonneau A, Heiter U, Hourihane A, Esteban FJ, Jofre P, Masseron T, Monaco L, Morbidelli L, Prisinzano L, Roccatagliata V, Sousa S, Van Der Swaelmen M, Worley CC, Zaggia S. 2020. The Gaia -ESO Survey: Calibrating the lithium-age relation with open clusters and associations: I. Cluster age range and initial membership selections. Astronomy and Astrophysics. 643:Article aa37620. https://doi.org/10.1051/0004-6361/202037620

MLA

Vancouver

Author

Albarrán, M. L.Gutiérrez ; Montes, D. ; Garrido, M. Gómez ; Tabernero, H. M. ; Hernández, J. I.González ; 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. ; Esteban, F. Jiménez ; Jofre, P. ; Masseron, T. ; Monaco, L. ; Morbidelli, L. ; Prisinzano, L. ; Roccatagliata, V. ; Sousa, S. ; Van Der Swaelmen, M. ; Worley, C. C. ; Zaggia, S. / The Gaia -ESO Survey : Calibrating the lithium-age relation with open clusters and associations: I. Cluster age range and initial membership selections. In: Astronomy and Astrophysics. 2020 ; Vol. 643.

RIS

TY - JOUR

T1 - The Gaia -ESO Survey

T2 - Calibrating the lithium-age relation with open clusters and associations: I. Cluster age range and initial membership selections

AU - Albarrán, M. L.Gutiérrez

AU - Montes, D.

AU - Garrido, M. Gómez

AU - Tabernero, H. M.

AU - Hernández, J. I.González

AU - Marfil, E.

AU - Frasca, A.

AU - Lanzafame, A. C.

AU - Klutsch, A.

AU - Franciosini, E.

AU - Randich, S.

AU - Smiljanic, R.

AU - Korn, A. J.

AU - Gilmore, G.

AU - Alfaro, E. J.

AU - Baratella, M.

AU - Bayo, A.

AU - Bensby, T.

AU - Bonito, R.

AU - Carraro, G.

AU - Delgado Mena, E.

AU - Feltzing, S.

AU - Gonneau, A.

AU - Heiter, U.

AU - Hourihane, A.

AU - Esteban, F. Jiménez

AU - Jofre, P.

AU - Masseron, T.

AU - Monaco, L.

AU - Morbidelli, L.

AU - Prisinzano, L.

AU - Roccatagliata, V.

AU - Sousa, S.

AU - Van Der Swaelmen, M.

AU - Worley, C. C.

AU - Zaggia, S.

PY - 2020/11/1

Y1 - 2020/11/1

N2 - Context. 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. Aims. 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. Methods. 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 radial velocity 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. Results. 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. Conclusions. 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.

AB - Context. 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. Aims. 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. Methods. 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 radial velocity 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. Results. 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. Conclusions. 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.

KW - Open clusters and associations: general

KW - Stars: abundances

KW - Stars: late-type

KW - Techniques: spectroscopic

U2 - 10.1051/0004-6361/202037620

DO - 10.1051/0004-6361/202037620

M3 - Article

AN - SCOPUS:85095973714

VL - 643

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 1432-0746

M1 - aa37620

ER -