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Sub-arcsec mid-IR imaging of OH 231.8+4.2

Published online by Cambridge University Press:  15 December 2006

C. Muthumariappan ,
Sun Kwok  and
Kevin Volk
C. Muthumariappan
Affiliation:
Institute of Astronomy & Astrophysics, Academia Sinica, Taiwan email: [email protected]
Sun Kwok
Affiliation:
Department of Physics, University of Hong Kong, Hong Kong, China email: [email protected]
Kevin Volk
Affiliation:
Gemini Observatory, Hilo, Hawai'i, U.S.A email:[email protected]
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Abstract

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We present 0.18$^{\prime\prime}$ resolution mid-infrared images of OH231.8+4.2 using the Gemini South telescope. The images show a bright central core of $\sim$1$^{\prime\prime}$ in size, with extended emissions in the lobes. We find evidence for different chemical composition of the dust in the core and the lobes from the narrow-band images.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S234: Planetary Nebulae in our Galaxy and Beyond , April 2006 , pp. 475 - 476
Copyright
© 2006 International Astronomical Union