Projeto Observacional para 2015B - SO2015B-019

Autor: Vinicius de Abreu Oliveira
Instituição: UFSM
e-mail: prof.vinic@gmail.com

Co-autores:
David Sanmartin
L. Drissen
C. Robert
Gilles Joncas

Título: Internal variation of electron temperature for HII regions

Resumo: In this project we propose to obtain MOS spectroscopy of two HII regions in Magellanic Cloud to estimate the internal fluctuation of electron temperature. The existence of large spatial temperature fluctuation are predicted as na explanation for the abundance discrepancy (AD) problem , i.e. the significant differences of abundance estimated from recombination lines and collisionally excited lines. Nevertheless, this interpretation remains significantly controversial. Our goal is investigating the spatial variation in electron temperature inside the HII regions NGC 2070 (30 Dor) and LHA 120-N11E and provide details and explanations to the AD problem, like turbulent motions, e.g. In order that, the electron temperature will be estimated using the point-to-point method over the nebulae and our expectation is to determinate the internal temperature fluctuation as well as the abundances of heavy elements.