Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars. / Andersen, A. C.; Höfner, S.; Gautschy-Loidl, R.

In: Astronomy & Astrophysics, Vol. 400, 03.2003, p. 981-992.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Andersen, AC, Höfner, S & Gautschy-Loidl, R 2003, 'Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars', Astronomy & Astrophysics, vol. 400, pp. 981-992. https://doi.org/10.1051/0004-6361:20030036

APA

Andersen, A. C., Höfner, S., & Gautschy-Loidl, R. (2003). Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars. Astronomy & Astrophysics, 400, 981-992. https://doi.org/10.1051/0004-6361:20030036

Vancouver

Andersen AC, Höfner S, Gautschy-Loidl R. Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars. Astronomy & Astrophysics. 2003 Mar;400:981-992. https://doi.org/10.1051/0004-6361:20030036

Author

Andersen, A. C. ; Höfner, S. ; Gautschy-Loidl, R. / Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars. In: Astronomy & Astrophysics. 2003 ; Vol. 400. pp. 981-992.

Bibtex

@article{95a66f99fbd849eea4e1ea205930958f,
title = "Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars",
abstract = "We present self-consistent dynamical models for dust-driven winds of carbon-rich AGB stars. The models are based on the coupled system of frequency-dependent radiation hydrodynamics and time-dependent dust formation. We investigate in detail how the wind properties of the models are influenced by the micro-physical properties of the dust grains that are required by the description of grain formation. The choice of dust parameters is significant for the derived outflow velocities, the degrees of condensation and the resulting mass-loss rates of the models. In the transition region between models with and without mass-loss the choice of micro-physical parameters turns out to be very significant for whether a particular set of stellar parameters will give rise to a dust-driven mass-loss or not. We also calculate near-infrared colors to test how the dust parameters influence the observable properties of the models, however, at this point we do not attempt to fit particular stars.",
author = "Andersen, {A. C.} and S. H{\"o}fner and R. Gautschy-Loidl",
year = "2003",
month = mar,
doi = "10.1051/0004-6361:20030036",
language = "English",
volume = "400",
pages = "981--992",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "E D P Sciences",

}

RIS

TY - JOUR

T1 - Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars

AU - Andersen, A. C.

AU - Höfner, S.

AU - Gautschy-Loidl, R.

PY - 2003/3

Y1 - 2003/3

N2 - We present self-consistent dynamical models for dust-driven winds of carbon-rich AGB stars. The models are based on the coupled system of frequency-dependent radiation hydrodynamics and time-dependent dust formation. We investigate in detail how the wind properties of the models are influenced by the micro-physical properties of the dust grains that are required by the description of grain formation. The choice of dust parameters is significant for the derived outflow velocities, the degrees of condensation and the resulting mass-loss rates of the models. In the transition region between models with and without mass-loss the choice of micro-physical parameters turns out to be very significant for whether a particular set of stellar parameters will give rise to a dust-driven mass-loss or not. We also calculate near-infrared colors to test how the dust parameters influence the observable properties of the models, however, at this point we do not attempt to fit particular stars.

AB - We present self-consistent dynamical models for dust-driven winds of carbon-rich AGB stars. The models are based on the coupled system of frequency-dependent radiation hydrodynamics and time-dependent dust formation. We investigate in detail how the wind properties of the models are influenced by the micro-physical properties of the dust grains that are required by the description of grain formation. The choice of dust parameters is significant for the derived outflow velocities, the degrees of condensation and the resulting mass-loss rates of the models. In the transition region between models with and without mass-loss the choice of micro-physical parameters turns out to be very significant for whether a particular set of stellar parameters will give rise to a dust-driven mass-loss or not. We also calculate near-infrared colors to test how the dust parameters influence the observable properties of the models, however, at this point we do not attempt to fit particular stars.

U2 - 10.1051/0004-6361:20030036

DO - 10.1051/0004-6361:20030036

M3 - Journal article

VL - 400

SP - 981

EP - 992

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

ER -

ID: 346008315