Seminário com o Prof. Dr. Sebastian Francisco Sanchez – 20 de novembro de 2015 – 10h15min

16/11/2015 16:58

O PROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA convida para o seminário: 

 

                                                       Ionized gas in CALIFA galaxies*

sebastian

Investigador Titular Instituto de Astronomia Universidad Nacional Autonoma de Mexico Circuito de la Investigacion Cientifica Ciudad Universitaria

Prof. Dr. Sebastian Francisco Sanchez

Instituto de Astronomia / Universidad Nacional Autonoma de Mexico

*Presença obrigatória para os alunos matriculados na disciplina seminários

Resumo:

We present here a summary of the most recent results derived by the CALIFA survey. In particular we focus on the characteristics of the ionized gas, and our exploration of the gas abundances using these integral field data. CALIFA_HexPoster_LR2We found ionized gas in all galaxies, irrespectively of their morphological type. The nature of the ionized gas and its relation with the properties of the underlying stellar populations are explored in detail. Using our own developed tools we have extracted the ionized gas properties of ~10.000 HII regions, in order to explore: (i) the relation between these properties and those of the host galaxies and the underlying stellar population; (ii) the local relation between the gas abundance and the stellar mass density; (iii) the abundance gradient, and its universal nature. All these results indicate that star-formation, stellar mass growth and chemical enrichment are local processes in galaxies, dominated by the local potential well, and they are consistent with an inside-out scenario of galaxy growth.

 

Data: 20 de novembro de 2015 – (sexta-feira)- Local: Sala 212 – Auditório do Departamento de Física – Horário: 10h15min

 

 

 

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