Dust formation and wind acceleration around the aluminum oxide–rich AGB star W Hydrae

Author:

Takigawa Aki1ORCID,Kamizuka Takafumi2ORCID,Tachibana Shogo3ORCID,Yamamura Issei45ORCID

Affiliation:

1. The Hakubi Center for Advanced Research/Division of Earth and Planetary Sciences, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo, Kyoto 606-8502, Japan.

2. Institute of Astronomy, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan.

3. Department of Natural History Science, Hokkaido University, N10W8, Sapporo, Hokkaido 060-0810, Japan.

4. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan.

5. Department of Space and Astronautical Science, SOKENDAI, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan.

Abstract

AlO and 29 SiO distributions around W Hya showed that AlO efficiently forms dust and contributes to the wind acceleration.

Funder

Japan Society for the Promotion of Science

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference32 articles.

1. Dust driven winds;Sedlmayr E.;Space Sci. Rev.,1995

2. I. R. Little-Marenin S. D. Price The Shapes of the Circumstellar Silicate Features (Ames Research Center Summer School on Interstellar Processes: Abstracts of Contributed Papers NASA 1986) 137–138.

3. A study of M Mira variables based on IRAS LRS observations. I. Dust formation in the circumstellar shell;Onaka T.;Astron. Astrophys.,1989

4. Dust features in the 10-μm infrared spectra of oxygen-rich evolved stars;Speck A. K.;Astron. Astrophys. Suppl. Ser.,2000

5. Morphology and crystal structures of solar and presolar Al2O3 in unequilibrated ordinary chondrites;Takigawa A.;Geochim. Cosmochim. Acta,2014

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