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DOI :10.26650/PAR.2023.00002   IUP :10.26650/PAR.2023.00002    Tam Metin (PDF)

The Age-Metallicity Relation in the Solar Neighbourhood

Sibel Döner, Serap Ak, Özgecan Önal Taş, Olcay Plevne

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

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DIŞA AKTAR



APA

Döner, S., Ak, S., Önal Taş, Ö., & Plevne, O. (2023). The Age-Metallicity Relation in the Solar Neighbourhood. Physics and Astronomy Reports, 1(1), 11-26. https://doi.org/10.26650/PAR.2023.00002


AMA

Döner S, Ak S, Önal Taş Ö, Plevne O. The Age-Metallicity Relation in the Solar Neighbourhood. Physics and Astronomy Reports. 2023;1(1):11-26. https://doi.org/10.26650/PAR.2023.00002


ABNT

Döner, S.; Ak, S.; Önal Taş, Ö.; Plevne, O. The Age-Metallicity Relation in the Solar Neighbourhood. Physics and Astronomy Reports, [Publisher Location], v. 1, n. 1, p. 11-26, 2023.


Chicago: Author-Date Style

Döner, Sibel, and Serap Ak and Özgecan Önal Taş and Olcay Plevne. 2023. “The Age-Metallicity Relation in the Solar Neighbourhood.” Physics and Astronomy Reports 1, no. 1: 11-26. https://doi.org/10.26650/PAR.2023.00002


Chicago: Humanities Style

Döner, Sibel, and Serap Ak and Özgecan Önal Taş and Olcay Plevne. “The Age-Metallicity Relation in the Solar Neighbourhood.” Physics and Astronomy Reports 1, no. 1 (Sep. 2024): 11-26. https://doi.org/10.26650/PAR.2023.00002


Harvard: Australian Style

Döner, S & Ak, S & Önal Taş, Ö & Plevne, O 2023, 'The Age-Metallicity Relation in the Solar Neighbourhood', Physics and Astronomy Reports, vol. 1, no. 1, pp. 11-26, viewed 18 Sep. 2024, https://doi.org/10.26650/PAR.2023.00002


Harvard: Author-Date Style

Döner, S. and Ak, S. and Önal Taş, Ö. and Plevne, O. (2023) ‘The Age-Metallicity Relation in the Solar Neighbourhood’, Physics and Astronomy Reports, 1(1), pp. 11-26. https://doi.org/10.26650/PAR.2023.00002 (18 Sep. 2024).


MLA

Döner, Sibel, and Serap Ak and Özgecan Önal Taş and Olcay Plevne. “The Age-Metallicity Relation in the Solar Neighbourhood.” Physics and Astronomy Reports, vol. 1, no. 1, 2023, pp. 11-26. [Database Container], https://doi.org/10.26650/PAR.2023.00002


Vancouver

Döner S, Ak S, Önal Taş Ö, Plevne O. The Age-Metallicity Relation in the Solar Neighbourhood. Physics and Astronomy Reports [Internet]. 18 Sep. 2024 [cited 18 Sep. 2024];1(1):11-26. Available from: https://doi.org/10.26650/PAR.2023.00002 doi: 10.26650/PAR.2023.00002


ISNAD

Döner, Sibel - Ak, Serap - Önal Taş, Özgecan - Plevne, Olcay. “The Age-Metallicity Relation in the Solar Neighbourhood”. Physics and Astronomy Reports 1/1 (Sep. 2024): 11-26. https://doi.org/10.26650/PAR.2023.00002



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