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Unravelling the Structure of Aspherical Protoplanetary Nebulae I. HST Imaging and OH Maser-Line Observations of Roberts 22

Unravelling the Structure of Aspherical Protoplanetary Nebulae I. HST Imaging and OH Maser-Line Observations of Roberts 22

Sahai, R.; Zijlstra, A.; Bujarrabal, V.; Hekkert, P. L.
URI: http://hdl.handle.net/2014/20803
Date: 1998-12
Citation: Astronomical Journal
USA

Abstract:

We have obtained high-resolution wide-band, narrow-band and polarimetric images of the bipolar protoplanetary nebula Roberts 22 with the Wide-Field & Planetary Camera 2 on HST. OH maser-line emission has also been observed using the Australia Telescope Compact Array.

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