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Mid-Infrared Studies of the Cool Dust Distribution in Bipolar Planetary Nebulae

Published online by Cambridge University Press:  08 August 2017

Kentaro Asano ,
Takashi Miyata ,
Takafumi Kamizuka  and
Toshiya Ueta
Kentaro Asano
Affiliation:
Department of Space Astronomy and Astrophysics Institute of Space and Astronautical Science (ISAS) Japan Aerospace Exploration Agency (JAXA), Sagamihara, Kanagawa 252-5210, Japan Department of Physics and Astronomy, University of Denver, Denver CO 80210, USA email: Kentaro.Asano@du.edu
Takashi Miyata
Affiliation:
Institute Astronomy, Graduate School of Science, The University of Tokyo, Mitaka, Tokyo 181-0015, Japan
Takafumi Kamizuka
Affiliation:
Institute Astronomy, Graduate School of Science, The University of Tokyo, Mitaka, Tokyo 181-0015, Japan
Toshiya Ueta
Affiliation:
Department of Physics and Astronomy, University of Denver, Denver CO 80210, USA email: Kentaro.Asano@du.edu
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Abstract

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To understand mass loss history and mass loss and dust formation history of massive AGB stars, we carried out observations of three bipolar planetary nebulae (BPNe) in 30 micron bands from a ground-based telescope. All of our targets have a compact strong emission source in the mid-infrared (MIR) around the position of the central star of planetary nebula (CSPN). These detected emissions can be originated from cool dust. Our results show that the cool dust component is compactly distributed and much more massive than previous studies indicated. These findings suggest that they experienced a strong mass loss into the equatorial direction in past.

Keywords

Bipolarmass losing starplanetary nebulaedust
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution , October 2016 , pp. 365 - 366
Copyright
Copyright © International Astronomical Union 2017 

References

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