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Unravelling the origin of peculiar metal gradients in interacting systems

Grant number: 19/01639-1
Support type:Scholarships abroad - Research Internship - Master's degree
Effective date (Start): April 01, 2019
Effective date (End): July 31, 2019
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
Principal researcher:Claudia Lucia Mendes de Oliveira
Grantee:Maria Luísa Gomes Buzzo
Supervisor abroad: Bodo Ziegler
Home Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: University of Vienna, Austria  
Associated to the scholarship:18/09165-6 - Recovering galaxies' formation history from multi-band photometry, BP.MS


In this project, we propose to use MUSE/VLT data of the intriguing merging galaxy NGC 1487, in order to map its chemical distribution in a pixel-by-pixel manner, and to determine the mechanism that is producing inhomogeneities in its metal distribution, as suggested by previous Gemini data. Although gas flows could be responsible in producing flat and inverted metallicity gradients, the role of external gas accretion in producing inhomogeneities in the metal distribution of interacting systems is not yet determined. Then, the project is based in using MUSE data to determine, pixel-by-pixel, i) the metal distribution, ii) ionization mechanisms, iii) physical conditions of the gas, iv) electron densities, v) star formation in NGC 1487. All this information will be used to understand the metal mixing process that is taking place in this small-scale analogue of the Antennae merger. (AU)

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