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A Possible Solution...
A Possible Solution to the Mass-Loss Problem in M-type AGB Stars
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Olofsson, H. (författare)
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Ramstedt, S. (författare)
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- Sacuto, Stéphane (författare)
- Uppsala universitet,Teoretisk astrofysik
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visa fler...
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Maercker, M. (författare)
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- Höfner, Susanne (författare)
- Uppsala universitet,Teoretisk astrofysik
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Kerschbaum, F. (författare)
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visa färre...
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: Why Galaxies Care about AGB Stars II.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Mass loss is a fundamental, observationally well-established feature of AGB stars, but many aspects of this process are not yet understood. To date, self-consistent dynamical models of dust-driven winds reproducing the observed mass-loss rates seem only possible for M-type stars if the grains in the close circumstellar environment grow to larger sizes than previously assumed. In order to study the grain-size distribution where the mass loss is initiated, high-spatial-resolution interferometry observations are necessary. We have observed two M-type stars using the VLTI/MIDI instrument to constrain the dust-grain sizes through modeling the 10 μm silicate feature. Here we present preliminary results.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)