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Sökning: WFRF:(Majewski S.) > (2020-2024) > Exploring the S-pro...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00007108naa a2200601 4500
001oai:DiVA.org:mau-50500
003SwePub
008220308s2022 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-505002 URI
0247 a https://doi.org/10.3847/1538-4357/ac42542 DOI
040 a (SwePub)mau
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Sales-Silva, J. V.u Observatório Nacional/MCTIC, R. Gen. José Cristino, 77, 20921-400, Rio de Janeiro, Brazil4 aut
2451 0a Exploring the S-process History in the Galactic Disk :b Cerium Abundances and Gradients in Open Clusters from the OCCAM/APOGEE Sample
264 c 2022-02-21
264 1b Institute of Physics (IOP),c 2022
338 a electronic2 rdacarrier
520 a The APOGEE Open Cluster Chemical Abundances and Mapping 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 in 218 stars belonging to 42 open clusters. Our results indicate that, in general, for ages < 4 Gyr, younger open clusters have higher [Ce/Fe] and [Ce/α-element] ratios than older clusters. In addition, metallicity segregates open clusters in the [Ce/X]–age plane (where X can be H, Fe, or the α-elements O, Mg, Si, or Ca). These metallicity-dependent relations result in [Ce/Fe] and [Ce/α] ratios with ages that are not universal clocks. Radial gradients of [Ce/H] and [Ce/Fe] ratios in open clusters, binned by age, were derived for the first time, with d[Ce/H]/dRGC being negative, while d[Ce/Fe]/dRGC is positive. [Ce/H] and [Ce/Fe] gradients are approximately constant over time, with the [Ce/Fe] gradient becoming slightly steeper, changing by ∼+0.009 dex kpc−1 Gyr−1. Both the [Ce/H] and [Ce/Fe] gradients are shifted to lower values of [Ce/H] and [Ce/Fe] for older open clusters. The chemical pattern of Ce in open clusters across the Galactic disk is discussed within the context of s-process yields from asymptotic giant branch (AGB) stars, gigayear time delays in Ce enrichment of the interstellar medium, and the strong dependence of Ce nucleosynthesis on the metallicity of its AGB stellar sources.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
7001 a Daflon, S.u Observatório Nacional/MCTIC, R. Gen. José Cristino, 77, 20921-400, Rio de Janeiro, Brazil4 aut
7001 a Cunha, K.u Observatório Nacional/MCTIC, R. Gen. José Cristino, 77, 20921-400, Rio de Janeiro, Brazil; Steward Observatory, University of Arizona, Tucson, AZ 85719, USA4 aut
7001 a Souto, D.u Departamento de Física, Universidade Federal de Sergipe, Av. Marechal Rondon, S/N, 49000-000 São Cristóvão, SE, Brazil4 aut
7001 a Smith, V. V.u Noirlab, Tucson, AZ 85719, USA4 aut
7001 a Chiappini, C.u Leibniz-Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, Germany4 aut
7001 a Donor, J.u Department of Physics & Astronomy, Texas Christian University, TCU Box 298840, Fort Worth, TX 76129, USA4 aut
7001 a Frinchaboy, P. M.u Department of Physics & Astronomy, Texas Christian University, TCU Box 298840, Fort Worth, TX 76129, USA4 aut
7001 a Garcia-Hernandez, D. A.u Instituto de Astrofísica de Canarias (IAC), E-38205 La Laguna, Tenerife, Spain; Universidad de La Laguna (ULL), Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain4 aut
7001 a Hayes, C.u Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA4 aut
7001 a Majewski, S. R.u Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325, USA4 aut
7001 a Masseron, T.u Instituto de Astrofísica de Canarias (IAC), E-38205 La Laguna, Tenerife, Spain; Universidad de La Laguna (ULL), Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain4 aut
7001 a Schiavon, R. P.u Astrophysics Research Institute, Liverpool John Moores University, Liverpool, L3 5RF, UK4 aut
7001 a Weinberg, D. H.u Department of Astronomy & Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, OH 43210, USA; Institute for Advanced Study, Princeton, NJ 08540, USA4 aut
7001 a Beaton, R. L.u The Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA 91101, USA4 aut
7001 a Fernandez-Trincado, J. G.u Instituto de Astronomía, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile; Instituto de Astronomía y Ciencias Planetarias, Universidad de Atacama, Copayapu 485, Copiapó, Chile4 aut
7001 a Jönsson, Henriku Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM)4 aut0 (Swepub:mau)ak0675
7001 a Lane, R. R.u Centro de Investigación en Astronomía, Universidad Bernardo O'Higgins, Avenida Viel 1497, Santiago, Chile4 aut
7001 a Minniti, D.u Departamento de Ciencias Fisicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Fernandez Concha 700, Las Condes, Santiago, Chile; Vatican Observatory, I-00120 Vatican City State, Italy4 aut
7001 a Manchado, A.u Instituto de Astrofísica de Canarias (IAC), E-38205 La Laguna, Tenerife, Spain; Universidad de La Laguna (ULL), Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain; Instituto de Astrofísica de Canarias, C. Vía Láctea, s/n, 38205 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain4 aut
7001 a Moni Bidin, C.u Instituto de Astronomía, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile4 aut
7001 a Nitschelm, C.u Centro de Astronomía (CITEVA), Universidad de Antofagasta, Avenida Angamos 601, Antofagasta 1270300, Chile4 aut
7001 a O'Connell, J.u Departamento de Astronomía, Casilla 160-C, Universidad de Concepción, Concepción, Chile4 aut
7001 a Villanova, S.u Departamento de Astronomía, Casilla 160-C, Universidad de Concepción, Concepción, Chile4 aut
7102 a Observatório Nacional/MCTIC, R. Gen. José Cristino, 77, 20921-400, Rio de Janeiro, Brazilb Observatório Nacional/MCTIC, R. Gen. José Cristino, 77, 20921-400, Rio de Janeiro, Brazil; Steward Observatory, University of Arizona, Tucson, AZ 85719, USA4 org
7730 t Astrophysical Journald : Institute of Physics (IOP)g 926:2q 926:2x 0004-637Xx 1538-4357
8564 u https://doi.org/10.3847/1538-4357/ac4254y Fulltext
8564 u https://mau.diva-portal.org/smash/get/diva2:1643052/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 u https://iopscience.iop.org/article/10.3847/1538-4357/ac4254/pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-50500
8564 8u https://doi.org/10.3847/1538-4357/ac4254

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