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Cosmic Dust: origin, applications & implications

11–15 Jun 2018
Geological Museum, University of Copenhagen
Europe/Copenhagen timezone

Contact info for the conference

Session

Dust production in low mass stars

2b
11 Jun 2018, 14:00
Main Auditorium (Geological Museum, University of Copenhagen)

Main Auditorium

Geological Museum, University of Copenhagen

Øster Voldgade 5 - 7, 1350 København K, Denmark

Conveners

Dust production in low mass stars: Dust production in low mass stars

  • Ciska Kemper (ASIAA)

Dust production in low mass stars: Dust production in low mass stars

  • Ciska Kemper (ASIAA)

Presentation materials

There are no materials yet.

  1. 14. Dust production in low- and intermediate-mass stars
    Prof. Susanne Höfner (Uppsala University)
    11/06/2018, 14:00
    The creation and evolution of dust
    Review Talk

    Stars in their late stages of evolution are generally considered to be major sources of interstellar dust. However, there is a long standing debate over the relative contributions by massive stars (both before and after they explode as supernovae), compared to low- and intermediate-mass stars, which expel a significant fraction of their total mass in stellar winds during the cool giant phase....

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  2. 15. Dust production in low mass stars
    Dr Sundar Srinivasan (Academia Sinica)
    11/06/2018, 14:45
    The creation and evolution of dust
    Invited talk

    Outflows from asymptotic giant branch (AGB) and red supergiant (RSG) stars regulate the lifecycle of dust in the interstellar medium (ISM) in nearby galaxies. Metals produced in AGB nucleosynthesis are transported to the surface where they cool to form molecules and, further out, dust. The chemistry of this material depends on the surface atomic ratio of carbon to oxygen, resulting in either...

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  3. 52. Infrared light curves of dusty & metal-poor AGB stars
    Steve Goldman (Space Telescope Science Institute)
    11/06/2018, 15:45
    The creation and evolution of dust
    Contributed talk

    The effects of metallicity on both the dust production and mass loss of evolved stars have consequences for stellar masses, stellar lifetimes, the progenitors of core-collapse supernovae, and the origin of dust in the ISM. With the DUST in Nearby Galaxies with Spitzer (DUSTiNGS) survey, we have discovered samples of dusty evolved AGB stars out to the edge of the Local Group, reaching...

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  4. 100. The metallicity-depence of mass loss in carbon stars
    Dr Sara Bladh (Uppsala University)
    11/06/2018, 16:10
    The creation and evolution of dust
    Contributed talk

    AGB stars are major contributors of dust in the universe, feeding newly produced elements into the surrounding interstellar medium in the form of gas and dust through their stellar winds.

    The detailed modelling of these dense winds or outflows is therefore crucial for understanding both the chemical evolution of galaxies, and the dust production in the interstellar medium. The mass loss...

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  5. 33. The submm properties of dust around carbon AGB stars
    Matthias Maercker (Chalmers University of Technology)
    11/06/2018, 16:35
    The creation and evolution of dust
    Contributed talk

    The origin and properties of dust in the universe, and the contribution from AGB stars, is a fundamental question in galaxy evolution. We constrain the properties of the dust grains in the thin detached shells around the carbon AGB stars R Scl, U Ant, V644 Sco, and DR Ser. The shells were created during recent thermal pulses, and the dust properties play a crucial role in understanding the...

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