A&a Manuscript No. Narrow-band Imaging and a Search for Planetary Nebulae ?
نویسنده
چکیده
We summarize the results of narrow-band (H and O III] 5007 A) imaging of eight planetary neb-ulae taken during recent observing campaigns: We present the probably largest known PN, MWP 1, with a linear diameter of about 6 pc. We show rst narrow-band images of He 2-437, MeWe 1-5, MeWe 1-8, MeWe 1-9, NGC 1360, and of { like we term them { the \Galactic footballs" A 43 and NGC 7094. We report about a search for planetary nebulae around eleven extremely hot (pre-) white dwarfs which had been not been successful.
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تاریخ انتشار 1998