Name: Eduardo Telles

Institution: MCT/ON

e-mail: etelles(no-spam)on.br

Partner Country: BRA

Science Meeting: Yes

User Meeting: None Selected

NGO Staff Meeting: None Selected

Presentation: Yes

Format: Poster

Title: Recycling of the ISM in HII galaxies

Abstract:

The spatial variations of the abundance of heavy elements should reflect the physical mechanisms involved in their recycling processes. We present the results for the HII galaxy UM 408, observed at the Gemini south observatory using GMOS-IFU spectroscopy. UM 408 is a compact and low metallicity galaxy without WR signature in their spectra. Maps of emission lines, continuum, EW(Hβ), Log [OIII]/Hβ and Te are derived and compared with the spatial distribution of 12 Log(O/H). We do not observe a significant gradient in the oxygen abundance, suggesting that the new metals formed in the current star formation episode are possibly not observed and reside in a hot or cool gas phase, whereas the metals from previous events are well mixed and homogeneously distributed through the whole extent of the galaxy. Under this supposition an underlying old stellar population would be expected.