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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34T/48NEU5B
Repositorysid.inpe.br/mtc-m21d/2023/03.17.11.48
Last Update2023:03.17.11.48.16 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21d/2023/03.17.11.48.16
Metadata Last Update2023:03.23.14.13.14 (UTC) administrator
DOI10.1051/0004-6361/202244334
ISSN0004-6361
1432-0746
Citation KeyCorazzaMiraWuen:2022:PoCoPo
TitlePotential contributions of Pop III and intermediate-mass Pop II stars to cosmic chemical enrichment
Year2022
MonthDec.
Access Date2024, June 16
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size12633 KiB
2. Context
Author1 Corazza, Lia Camargo
2 Miranda, Oswaldo Duarte
3 Wuensche, Carlos Alexandre
Resume Identifier1
2 8JMKD3MGP5W/3C9JJ2G
ORCID1 0000-0002-5284-8930
2 0000-0002-0109-2483
3 0000-0003-1373-4719
Group1 AST-CEA-DIPGR-INPE-MCTI-GOV-BR
2 DIAST-CGCE-INPE-MCTI-GOV-BR
3 DIAST-CGCE-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1
2 oswaldo.miranda@inpe.br
3 ca.wuensche@inpe.br
JournalAstronomy and Astrophysics
Volume668
PagesA191
Secondary MarkA1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_INTERDISCIPLINAR A2_ENGENHARIAS_IV A2_ASTRONOMIA_/_FÍSICA B2_ENSINO C_ENGENHARIAS_II
History (UTC)2023-03-17 11:48:16 :: simone -> administrator ::
2023-03-17 11:48:17 :: administrator -> simone :: 2022
2023-03-17 11:48:44 :: simone -> administrator :: 2022
2023-03-23 14:13:14 :: administrator -> simone :: 2022
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
Keywordsstars: Population III
stars: Population II
dark ages
reionization
first stars
large-scale structure of Universe
cosmology: observations
cosmology: theory
Abstractontext. We propose a semi-analytic model that is developed to understand the cosmological evolution of the mean metallicity in the Universe. In particular, we study the contributions of Population III (Pop III) and Population II (Pop II) stars to the production of Fe, Si, Zn, Ni, P, Mg, Al, S, C, N, and O. Aims. We aim to quantify the roles of two different models in the chemical enrichment of the Universe. The first model (A) considers both stars with Pop III and Pop II yields. For the second model (B), the yields involved are only for Pop II stars. Methods. We start by describing the cosmic star formation rate (CSFR) through an adaptation of a scenario developed within the hierarchical scenario of structure formation with a Press-Schechter-like formalism. We adapt the formalism to implement the CSFR to the standard chemical evolution scenario to investigate the course of chemical evolution on a cosmological basis. Calculations start at redshift z;similar to;20, and we compare the results of our two models with data from damped Lyman-alpha systems (DLAs), and globular clusters (GCs). Results. Our main results find that metal production in the Universe occurred very early, quickly increasing with the formation of the first stars. When comparing results for [Fe/H] with observations from GCs, yields of Pop II stars are not enough to explain the observed chemical abundances, requiring stars with physical properties similar those expected from Pop III stars. Conclusions. Our semi-analytic model can deliver consistent results for the evolution of cosmic metallicities. Our results show that the chemical enrichment in the early Universe is rapid, and at redshift similar to 12.5, the metallicity reaches 10(-4)Z(circle dot) for the model that includes Pop III stars. In addition, we explore values for the initial mass function (IMF) within the range [0.85, 1.85].
AreaCEA
Arrangement 1urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > AST > Potential contributions of...
Arrangement 2urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Potential contributions of...
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4. Conditions of access and use
data URLhttp://urlib.net/ibi/8JMKD3MGP3W34T/48NEU5B
zipped data URLhttp://urlib.net/zip/8JMKD3MGP3W34T/48NEU5B
Languageen
Target Fileaa44334-22.pdf
User Groupsimone
Reader Groupadministrator
simone
Visibilityshown
Archiving Policyallowpublisher allowfinaldraft
Update Permissionnot transferred
5. Allied materials
Mirror Repositoryurlib.net/www/2021/06.04.03.40.25
Next Higher Units8JMKD3MGPCW/3F2NE4L
8JMKD3MGPCW/46KTFK8
Citing Item Listsid.inpe.br/bibdigital/2013/10.12.16.06 3
sid.inpe.br/mtc-m21/2012/07.13.14.57.32 2
sid.inpe.br/bibdigital/2022/04.03.17.52 2
DisseminationWEBSCI; PORTALCAPES; COMPENDEX; SCOPUS.
Host Collectionurlib.net/www/2021/06.04.03.40
6. Notes
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