Exploring the s-process history in the Galactic disk: Cerium abundances and gradients in Open Clusters from the OCCAM/APOGEE sample
| Autor: | J. V. Sales-Silva, S. Daflon, K. Cunha, D. Souto, V. V. Smith, C. Chiappini, J. Donor, P. M. Frinchaboy, D. A. García-Hernández, C. Hayes, S. R. Majewski, T. Masseron, R. P. Schiavon, D. H. Weinberg, R. L. Beaton, J. G. Fernández-Trincado, H. Jönsson, R. R. Lane, D. Minniti, A. Manchado, C. Moni Bidin, C. Nitschelm, J. O’Connell, S. Villanova |
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| Rok vydání: | 2021 |
| Předmět: |
Astronomi
astrofysik och kosmologi Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) Astronomy Astrophysics and Cosmology FOS: Physical sciences Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Solar and Stellar Astrophysics (astro-ph.SR) |
| DOI: | 10.48550/arxiv.2112.02196 |
| Popis: | The APOGEE Open Cluster Chemical Abundances and Mapping (OCCAM) survey is used to probe the chemical evolution of the s-process element cerium in the Galactic disk. Cerium abundances were derived from measurements of Ce II lines in the APOGEE spectra using the Brussels Automatic Code for Characterizing High Accuracy Spectra (BACCHUS) in 218 stars belonging to 42 open clusters. Our results indicate that, in general, for Ages $ Comment: 20 pages, 10 figures, Accepted to ApJ |
| Databáze: | OpenAIRE |
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