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Understanding the observed properties of interstellar filaments: Insights into the initial conditions of star formation

Doris Arzoumanian

The highly filamentary structure of the interstellar medium is impressively revealed by the unprecedented quality and sky coverage of Herschel and Planck images tracing the Galactic cold dust emission. These observations provide the required data to describe in detail the properties of the filamentary structures observed in both quiescent clouds and in star-forming regions, where the densest filaments appear to be the main sites of star formation.
In this presentation, I will share what we have learned about the properties of the filamentary structures derived from dust continuum data in total and polarized intensity and from molecular line observations. I will than discuss the observational constraints on the formation of molecular filaments and their role in the star formation process.

2020 January 15, 13:30

Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

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