Resumen
Los cúmulos abiertos son objetos muy útiles en astrofísica; se han utilizado para estudiar la teoría de la formación y la evolución estelar, así como la estructura de la vía láctea. En ese contexto, se analizaron estrellas enanas y gigantes pertenecientes a los cúmulos abiertos IC 2391 y NGC 6475. Los espectros de alta resolución se obtuvieron de la base de datos ESO/Archive. Para obtener los parámetros atmosféricos (Teff, log g, ε, [Fe/H]) y las abundancias químicas, se aplicó la hipótesis del equilibrio termodinámico local (local thermodynamic equilibrium, LTE). Nuestros resultados corroboraron el comportamiento de las abundancias químicas en el disco galáctico.
Palabras clave
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Beers, T.C., Carollo, D. (2009). Galactic archaeology: Overcoming great barriers. Nature Physics, 5(7), 463-464.
Cantat-Gaudin, T., Anders, F., Castro-Ginard, A., Jordi, C., Romero-Go´mez, M., Soubi- ran, C., Casamiquela, L., Tarricq, Y., Moitinho, A., Vallenari, A., Bragaglia, A., Krone-Martins, A., Kounkel, M. (2020). Painting a portrait of the Galactic disc with its stellar clusters. Astronomy and Astrophysics, 640, Article A1, A1. https://doi.org/10.1051/0004-6361/202038192
De Silva, G. M., D’Orazi, V., Melo, C., Torres, C. A. O., Gieles, M., Quast, G. R., Sterzik, M. (2013). Search for associations containing young stars: chemical tagging IC 2391 and the Argus association. Monthly Notices of the Royal Astronomical Society, 431(2), 1005-1018. https://doi.org/10.1093/mnras/stt153
Delgado-Mena, E., Moya, A., Adibekyan, V., Tsantaki, M., González-Hernández, J. I., Israelian, G., Davies, G. R., Chaplin, W. J., Sousa, S. G., Ferreira, A. C. S., Santos, N. C. (2019). Abundance to age ratios in the HARPS-GTO sample with Gaia DR2. Chemical clocks for a range of [Fe/H]. Astronomy and Astrophysics, 624, A78. https://doi.org/10.1051/0004-6361/201834783
Feinstein, A. (1961). Spectroscopic Observations of M 7. Publications of the Astronomical Society of the Pacific, 73(435), 452. https://doi.org/10.1086/127728
Gaia Collaboration. (2018). VizieR Online Data Catalog: Gaia DR2 (Gaia Collaboration, 2018). VizieR Online Data Catalog, Article I/345.
Gaia Collaboration. (2022). VizieR Online Data Catalog: Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022). VizieR Online Data Catalog, Article I/355.
Jacobson, H. R., Friel, E. D., Jılková, L., Magrini, L., Bragaglia, A., Vallenari, A., Tosi, M., Randich, S., Donati, P., Cantat-Gaudin, T., Sordo, R., Smiljanic, R., Overbeek, J. C., Carraro, G., Tautvaišienė, G., San Roman, I., Villanova, S., Geisler, D., Muñoz, C., . . Zaggia, S. (2016). The Gaia-ESO Survey: Probes of the inner disk abundance gradient. Astronomy and Astrophysics, 591, Article A37. https://doi.org/10.1051/0004-6361/201527654
Katime-Santrich, O. J., Kerber, L., Abuchaim, Y., Gonçalves, G. (2022). On the validity of the spectroscopic age indicators [Y/Mg], [Y/Al], [Y/Si], [Y/Ca], and [Y/Ti] for giant stars. Monthly Notices of the Royal Astronomical Society, 514(4), 4816-4827. https://doi.org/10.1093/mnras/stac1183
Katime-Santrich, O.J.K., Pereira, C.B., Drake, N.A. (2013). Chemical analysis of giant stars in the young open cluster NGC 3114. Astronomy and Astrophysics, 554, Article A2, https://doi.org/10.1051/0004-6361/201220252
Kurucz, R. L. (1981). A table of semiempirical gf values. Pt 1: Wavelengths: 5.2682 NM to 272.3380 nm; Pt 2: Wavelengths: 272.3395 NM to 599.3892 nm; Pt 3: Wave-lengths: 599.4004 NM to 9997.2746 NM Pt 4: FeII.
Kurucz, R. L., Peytremann, E. (1975). A table of semiempirical gf values. Pt 1: Wave- lengths: 5.2682 NM to 272.3380 nm; Pt 2: Wavelengths: 272.3395 NM to 599.3892 nm; Pt 3: Wavelengths: 599.4004 NM to 9997.2746 NM. SAO Special Report.
Luck, R. E. (2015). Abundances in the Local Region. I. G and K Giants. The Astrophysical Journal, 150(3), Article 88. https://doi.org/10.1088/0004-6256/150/3/88
Magrini, L., Randich, S., Kordopatis, G., Prantzos, N., Romano, D., Chieffi, A., Limongi, M., François, P., Pancino, E., Friel, E., Bragaglia, A., Tautvaišienė, G., Spina, L., Overbeek, J., Cantat-Gaudin, T., Donati, P., Vallenari, A., Sordo, R., Jiménez- Esteban, F. M., . . . Zaggia, S. (2017). The Gaia-ESO Survey: radial distribution of abundances in the Galactic disc from open clusters and young-field stars. Astronomy and Astrophysics, 603, Article A2. https://doi.org/10.1051/0004-6361/201630294
Magrini, L., Viscasillas-Vázquez, C., Spina, L., Randich, S., Romano, D., Franciosini, E., Recio-Blanco, A., Nordlander, T., D’Orazi, V., Baratella, M., Smiljanic, R., Dantas, M. L.L., Pasquini, L., Spitoni, E., Casali, G., Van der Swaelmen, M., Bensby, T., Stonkute, E., Sacco, S.F.G.G., . . . Morbidelli, L. (2022). The Gaia-ESO survey: mapping the shape and evolution of the radial abundance gradients with open clusters. arXiv e-prints, Article arXiv:2210.15525.
Mermilliod, J. C., Mayor, M., Udry, S. (2008). Red giants in open clusters. XIV. Mean radial velocities for 1309 stars and 166 open clusters. Astronomy and Astrophysics, 485(1), 303-314. https://doi.org/10.1051/0004-6361:200809664
Mermilliod, J., Mayor, M., Udry, S. (2009). Catalogues of radial and rotational velocities of 1253 F-K dwarfs in 13 nearby open clusters. Astronomy and Astrophysics, 498(3), 949-960. https://doi.org/10.1051/0004-6361/200810244
Sales-Silva, J.V., Peña-Suárez, V.J., Katime-Santrich, O.J., Pereira, C.B., Drake, N.A., Roig, F. (2014). High-resolution Spectroscopic Observations of Binary Stars and Yellow Stragglers in Three Open Clusters: NGC 2360, NGC 3680, and NGC 5822. The Astrophysical Journal, 148(5), Article 83. https://doi.org/10.1088/0004-6256/148/5/83
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Derechos de autor 2023 Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales