Cosmic Dust: origin, applications & implications

Session

Dust as a galaxy probe

3b

14 Jun 2018, 15:30

Main Auditorium (Geological Museum, University of Copenhagen)

Conveners

Dust as a galaxy probe: Dust as a galaxy probe

• Georgios Magdis

20. Dust as a galaxy probe

Prof. Susanne Aalto (Chalmers University of Technology)

14/06/2018, 15:30

Dust as a tool

Review Talk

In this talk I will discuss our current view of dust as a tracer of galaxy properties – from dust in extended, star forming disks and winds – to properties of dusty nuclei and compact, collimated nuclear outflows . I will show optical studies of dust in absorption - and dust in emission at long wavelengths (from infrared to mm/submm). Finally, I will present new results on very optically thick...

21. Insights into the Life Cycle of Dust at Low Metallicity from the Local Group and Nearby Galaxies

Dr Karin Sandstrom (University of California, San Diego)

14/06/2018, 16:15

Dust as a tool

Invited talk

Dust plays critical roles in many of the processes occurring in the interstellar medium and dust's infrared emission serves as a probe of the ISM and star formation in galaxies out to high redshift. The role of dust in ISM physics and its use as a probe of distant galaxies both depend on the characteristics of the grain population: the dust-to-gas ratio and the grain composition, charge, and...

133. Radiative transfer model of dust attenuation curves in clumpy, galactic environments

Kwang-il Seon (Korea Astronomy & Space Sciences Institute)

14/06/2018, 16:50

Dust as a tool

Contributed talk

The attenuation of starlight by dust in galactic environments is investigated through models of radiative transfer in a spherical, clumpy interstellar medium (ISM). We show that the attenuation curves are primarily determined by the wavelength dependence of absorption rather than by the underlying extinction (absorption+scattering) curve; the observationally derived attenuation curves cannot...