Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Dors, Oli L. | - |
| dc.creator | Cardaci, Monica Viviana | - |
| dc.creator | Hägele, Guillermo Federico | - |
| dc.creator | Krabbe, Angela | - |
| dc.date | 2018-02-02T16:17:49Z | - |
| dc.date | 2018-02-02T16:17:49Z | - |
| dc.date | 2014-08 | - |
| dc.date | 2018-01-12T16:21:00Z | - |
| dc.date.accessioned | 2019-04-29T15:28:59Z | - |
| dc.date.available | 2019-04-29T15:28:59Z | - |
| dc.date.issued | 2018-02-02T16:17:49Z | - |
| dc.date.issued | 2018-02-02T16:17:49Z | - |
| dc.date.issued | 2014-08 | - |
| dc.date.issued | 2018-01-12T16:21:00Z | - |
| dc.identifier | Dors, Oli L.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Krabbe, Angela; Metallicity evolution of AGNs from UV emission-lines; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 443; 8-2014; 1291-1300 | - |
| dc.identifier | 0035-8711 | - |
| dc.identifier | http://hdl.handle.net/11336/35481 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/294932 | - |
| dc.description | We analysed the evolution of the metallicity of the gas with the redshift for a sample of AGNs in a very wide redshift range (0 < z<4) using ultraviolet emission lines from the narrow-line regions (NLRs) and photoionization models. The new index C43 = log[(C IV+C III])/He II] is suggested as a metallicity indicator for AGNs. Based on this indicator, we confirmed the no metallicity evolution of NLRs with the redshift pointed out by previous works. We found that metallicity of AGNs shows similar evolution than the one predicted by cosmic semianalytic models of galaxy formation set within the cold dark matter merging hierarchy (for z < 3). Our results predict a mean metallicity for local objects in agreement with the solar value (12+log(O/H)=8.69). This value is about the same that the maximum oxygen abundance value derived for the central parts of local spiral galaxies. Very low metallicity log (Z/Zsun) ~ −0.8 for some objects in the range 1.5<z<3 is derived. | - |
| dc.description | Fil: Dors, Oli L.. Universidade do Vale do Paraíba; Brasil | - |
| dc.description | Fil: Cardaci, Monica Viviana. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | - |
| dc.description | Fil: Hägele, Guillermo Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina | - |
| dc.description | Fil: Krabbe, Angela. Universidade do Vale do Paraíba; Brasil | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Wiley Blackwell Publishing, Inc | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stu1218 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/443/2/1291/1064609 | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | Abundances (galaxias) | - |
| dc.subject | Evolution of galaxies | - |
| dc.subject | Formation of galaxies | - |
| dc.subject | Astronomía | - |
| dc.subject | Ciencias Físicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Metallicity evolution of AGNs from UV emission-lines | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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