The Age-Metallicity Relation in the Solar Neighbourhood

Yıl 2023, , 11 - 26, 20.06.2023

Sibel Döner Serap Ak , Özgecan Önal Taş Olcay Plevne

https://doi.org/10.26650/PAR.2023.00002

Öz

Age-metallicity relation for the Galactic disc is a crucial tool and is used to constrain the Galactic chemical evolution models. We investigated the age-metallicity relation of the Galactic disc using the red giant branch stars in the Solar neighbourhood. The data cover the Galactocentric radius of 7 ≤ 𝑅gc (kpc) ≤ 9.5, but extends up to 4 kpc in height from the Galactic plane. We used kinematic age derived from highly precise astrometric data of Gaia Data Release 2 and element abundance ratios from high-resolution spectroscopic data of APOGEE-2 catalogues. We applied a two-component Gaussian mixture model to chemically separate the programme stars into thin and thick disc populations. The stars in each population are grouped into different distance intervals from the Galactic plane. The mean metal abundances and velocity dispersions of the stars in the groups were calculated and the kinematic ages were determined from their kinematic parameters. We found a steep relation for the thin disc with -0.057±0.007 dex Gyr−1 , and even a steeper value of -0.103±0.009 dex Gyr−1 for the thick disc. These age-metallicity relations along with the prominent differences in age, metallicity, and kinematic behaviours seen from the data, clearly show that it is important to consider the distinct formation scenarios of the Galactic disc components in modelling the Milky Way.

Anahtar Kelimeler

Galaxy: solar neighbourhood, disc, structure, stars: red giant branch

Kaynakça

• Ahumada R., et al., 2020, ApJS, 249, 3 google scholar
• Ak S., Bilir S., Karaali S., Buser R., Cabrera-Lavers A., 2007a, New Astronomy, 12, 605 google scholar
• Ak S., Bilir S., Karaali S., Buser R., 2007b, Astronomische Nachrichten, 328, 169 google scholar
• Allende Prieto C., et al., 2008, Astronomische Nachrichten, 329, 1018 google scholar
• Allende Prieto C., Kawata D., Cropper M., 2016, A&A, 596, A98 google scholar
• Bailer-Jones C. A. L., 2015, PASP, 127, 994 google scholar
• Bailer-Jones C. A. L., Rybizki J., Fouesneau M., Mantelet G., Andrae R., 2018, AJ, 156, 58 google scholar
• Bensby T., Feltzing S., Oey M. S., 2014, A&A, 562, A71 google scholar
• Bergemann M., et al., 2014, A&A, 565, A89 google scholar
• Bilir S., Karaali S., Ak S., Yaz E., Hamzaoglu E., 2006, New Astron omy, 12, 234 google scholar
• Bilir S., Cabrera-Lavers A., Karaali S., Ak S., Yaz E., Lopez-Corredoira M., 2008, Publ. Astron. Soc. Australia, 25, 69 google scholar
• Bilir S., Karaali S., AkS., ÖnalÖ., DagtekinN. D., YontanT., Gilmore G., Seabroke G. M., 2012, MNRAS, 421, 3362 google scholar
• Blanton M. R., et al., 2017, AJ, 154, 28 google scholar
• Boeche C., et al., 2013, A&A, 553, A19 google scholar
• Bowen I. S., Vaughan A. H. J., 1973, Appl. Opt., 12, 1430 google scholar
• Boyer M. L., McDonald I., van Loon J. T., Woodward C. E., Gehrz R. D., Evans A., Dupree A. K., 2008, AJ, 135, 1395 google scholar
• Bressan A., Marigo P., Girardi L., Salasnich B., Dal Cero C., Rubele S., Nanni A., 2012, MNRAS, 427, 127 google scholar
• Cabrera-Lavers A., Bilir S., Ak S., Yaz E., López-Corredoira M., 2007, A&A, 464, 565 google scholar
• Carraro G., Ng Y. K., Portinari L., 1998, MNRAS, 296, 1045 google scholar
• Casagrande L., Schönrich R., Asplund M., Cassisi S., Ramírez I., Meléndez J., Bensby T., Feltzing S., 2011, A&A, 530, A138 google scholar
• Casali G., et al., 2020, A&A, 639, A127 google scholar
• Chandrasekhar S., 1960, Principles of stellar dynamics google scholar
• Chiappini C., Matteucci F., Gratton R., 1997, ApJ, 477, 765 google scholar
• Chiba M., Beers T. C., 2000, AJ, 119, 2843 google scholar
• Chiosi C., 1998, in Aparicio A., Herrero A., Sánchez F., eds, Stellar astrophysics for the local group: VIII Canary Islands Winter School of Astrophysics. p. 1 google scholar
• Coskunoglu B., et al., 2011, MNRAS, 412, 1237 google scholar
• Cox A. N., 2000, Allen’s astrophysical quantities google scholar
• De Silva G. M., et al., 2015, MNRAS, 449, 2604 google scholar
• Duran Ş., Ak S., Bilir S., Karaali S., Ak T., Bostancı Z. F., Coskunoglu B., 2013, Publ. Astron. Soc. Australia, 30, e043 google scholar
• Edvardsson B., Andersen J., Gustafsson B., Lambert D. L., Nissen P. E., Tomkin J., 1993, A&A, 275, 101 google scholar
• Eggen O. J., Lynden-Bell D., Sandage A. R., 1962, ApJ, 136, 748 google scholar
• Feltzing S., Holmberg J., Hurley J. R., 2001, A&A, 377, 911 google scholar
• Feuillet D. K., Frankel N., Lind K., Frinchaboy P. M., García-Hernández D. A., Lane R. R., Nitschelm C., Roman-Lopes A., 2019, MNRAS, 489, 1742 google scholar
• Freeman K., Bland-Hawthorn J., 2002, ARA&A, 40, 487 google scholar
• Fuhrmann K., 1998, A&A, 338, 161 google scholar
• Gaia Collaboration et al., 2018, A&A, 616, A1 google scholar
• García Pérez A. E., et al., 2016, AJ, 151, 144 google scholar
• Gilmore G., Wyse R. F. G., 1985, AJ, 90, 2015 google scholar
• Gilmore G., et al., 2012, The Messenger, 147, 25 google scholar
• Gratton R., Carretta E., Matteucci F., Sneden C., 1996, in Morrison H. L., Sarajedini A., eds, Astronomical Society of the Pacific Conference Series Vol. 92, Formation of the Galactic Halo...Inside and Out. p. 307 google scholar
• Haywood M., Di Matteo P., Lehnert M. D., Katz D., Gómez A., 2013, A&A, 560, A109 google scholar
• Holtzman J. A., et al., 2015, AJ, 150, 148 google scholar
• Holtzman J. A., et al., 2018, AJ, 156, 125 google scholar
• Iben Icko J., 1968, ApJ, 154, 581 google scholar
• Johnson D. R. H., Soderblom D. R., 1987, AJ, 93, 864 google scholar
• J0rgensen B. R., Lindegren L., 2005, A&A, 436, 127 google scholar
• Karaali S., Bilir S., Gökçe E. Y., Plevne O., 2019, Publ. Astron. Soc. Australia, 36, e040 google scholar
• Lin J., Dotter A., Ting Y.-S., Asplund M., 2018, MNRAS, 477, 2966 google scholar
• Lutz T. E., Kelker D. H., 1973, PASP, 85, 573 google scholar
• Majewski S. R., et al., 2017, AJ, 154, 94 google scholar
• Miglio A., et al., 2017, Astronomische Nachrichten, 338, 644 google scholar
• Mihalas D., Binney J., 1981, Galactic astronomy. Structure and kinematics google scholar
• Minchev I., Chiappini C., Martig M., 2013, A&A, 558, A9 google scholar
• Minchev I., Chiappini C., Martig M., 2016, Astronomische Nachrichten, 337, 944 google scholar
• Navarro J. F., Abadi M. G., Venn K. A., Freeman K. C., Anguiano B., 2011, MNRAS, 412, 1203 google scholar
• Ng Y. K., Bertelli G., 1998, A&A, 329, 943 google scholar
• Nidever D. L., et al., 2015, AJ, 150, 173 google scholar
• Nissen P. E., Christensen-Dalsgaard J., Mosumgaard J. R., Silva Aguirre V., Spitoni E., Verma K., 2020, A&A, 640, A81 google scholar
• Nordström B., et al., 2004, A&A, 418, 989 google scholar
• Olsen E. H., 1983, A&AS, 54, 55 google scholar
• Olsen E. H., 1993, A&AS, 102, 89 google scholar
• Origlia L., Ferraro F. R., Fusi Pecci F., Rood R. T., 2002, ApJ, 571,458 google scholar
• Pedregosa F., et al., 2011, Journal of Machine Learning Research, 12, 2825 google scholar
• Plevne O., Önal Tas, Ö., Bilir S., Seabroke G. M., 2020, ApJ, 893, 108 google scholar
• Pont F., Eyer L., 2004, MNRAS, 351, 487 google scholar
• Recio-Blanco A., et al., 2022, arXiv e-prints, p. arXiv:2206.05541 google scholar
• Rich R. M., Reitzel D. B., Howard C. D., Zhao H., 2007, ApJ, 658, L29 google scholar
• Schwarzschild I. M., Selberg H., 1962, ApJ, 136, 150 google scholar
• Searle L., Zinn R., 1978, ApJ, 225, 357 google scholar
• Smith H. J., 1987, A&A, 188, 233 google scholar
• Soubiran C., Bienayme O., Siebert A., 2003, A&A, 398, 141 google scholar
• Soubiran C., Bienayme O., Mishenina T. V., Kovtyukh V. V., 2008,A&A, 480, 91 google scholar
• Spitzer Lyman J., Schwarzschild M., 1953, ApJ, 118, 106 google scholar
• Steinmetz M., et al., 2006, AJ, 132, 1645 google scholar
• Tunçel Güçtekin S., Bilir S., Karaali S., Plevne O., Ak S., 2019,Advances in Space Research, 63, 1360 google scholar
• Twarog B. A., 1980, ApJ, 242, 242 google scholar
• Wielen R., 1977, A&A, 60, 263 google scholar
• Wilson J. C., et al., 2019, PASP, 131, 055001 google scholar
• Wojno J., et al., 2018, MNRAS, 477, 5612 google scholar
• Wyse R. F. G., Gilmore G., 1988, AJ, 95, 1404 google scholar
• Yanny B., et al., 2009, AJ, 137, 4377 google scholar
• Yaz E., Karaali S., 2010, New Astronomy, 15, 234 google scholar
• Zhao G., Zhao Y.-H., Chu Y.-Q., Jing Y.-P., Deng L.-C., 2012, Research in Astronomy and Astrophysics, 12, 723 google scholar
• Çelebi M., Bilir S., Ak S., Ak T., Bostancı Z. F., Yontan T., 2019, Ap&SS, 364, 172 google scholar
• van Leeuwen F., 2007, A&A, 474, 653 google scholar