... Detection of the 609 m line of neutral atomic carbon in the RingNebula . ... find halo H emission in NGC 6720 (the RingNebula), in Ring-like NGC 6772 and 6781 ... fine-structure line of neutral atomic carbon (CI) in the RingNebula (NGC 6720 ...
... in the warm transition regions around the RingNebula using the optical [C I] and [N ... the bipolar model proposed by Bryce, Balick & Meaburn (1994) for the RingNebula ...
... All the lines show a velocity gradient across the nebula which confirms that the ring is intrinsically circular and expanding at 10.3 0.4 km s . ...
... Such an interaction would consist in a significant momentum transport from the bipolar fast flow to the rest of the nebula. Accepted by Astrophys. ...
... Discovery of a planetary nebula around the OH/IR star V1018 Sco . ... Compact Array images dense gas in a circumnuclear ring. ... to observe a unique, recently formed planetary nebula that is associated with a long ...
... The chemical composition resembles that found in the bright ring at the end of the major axis, but the intricate and largely unknown structure of this planetary nebula (PN) complicates the analysis considerably. ...
... s H2O - 2004 Optical properties H detection of a faint PN: (MASH PN survey) PN is centred on the OH maser position Ring diameter ~ 39 arcsec Optical nebula 13 cm star Compact Array : nonthermal radio continuum detected at 3, 6, 13, 20 cm Non-thermal radio ...
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... Discovery of a planetary nebula around the OH/IR star V1018 Sco . The OH/IR star . Discovery of the planetary nebula . ... The OH/IR star . Discovery of the planetary nebula . Radio continuum and H 2 O maser emission: first results . Discussion. ...