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Knocking on Giant's Door: Modelling the dust-to-stellar properties of distant, massive galaxies

Darko Donevski
SISSA, Trieste, Italy

Thanks to pre-selection techniques from large surveys made with infrared/sub-mm telescopes (e.g. Donevski et al. 2018), a huge progress in unveiling the high-z tail (z > 4) of dusty star-forming galaxies (DSFGs) has been made. However, there are important drawbacks, such that far-IR selection of DSFGs in wide fields are restricted only to sources from the brightest-end of the luminosity function. Due to the lack of information from shorter wavelengths, some vital properties of DSFGs, such as stellar mass and AGN-fraction remain unconstrained. In this talk, I will present how to benefit from rich panchromatic data available in deep fields and apply state-of-the art SED modelling techniques in order to unveil the nature of fainter DSFGs. I will discuss how the dust-to-stellar properties of distant sources can be used as a powerful diagnostics tool of their star-formation activity, and refer the status of existing tensions with different galaxy formation models.

2019 December 05, 15:00

Observatório Astronómico de Lisboa (Seminar room)
Tapada da Ajuda, 1349-018 Lisboa

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia