Narrow-band imaging and a search for planetary nebulae

Details Narrow-band imaging and a search for planetary nebulae Narrow-band imaging and a search for planetary nebulae

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..135..487r&link_type=abstract

Astronomy and Astrophysics Supplement, v.135, p.487-491

Astronomy and Astrophysics

Astrophysics

8

Planetary Nebulae: General, Planetary Nebulae: Individual: A 43, He 2-437, Mwp 1, Ngc 1360, Ngc 7094

Scientific paper

We summarize the results of narrow-band (Hα and [\O 3] lambda 5007 Angstroms) imaging of eight planetary nebulae taken during recent observing campaigns: We present the probably largest known PN, MWP 1, with a linear diameter of about 6 pc. We show first 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 not been successful. Based on observations obtained at the German-Spanish Astronomical Center, Calar Alto, operated by the Max-Planck-Institut für Astronomie Heidelberg jointly with the Spanish National Commission for Astronomy and at the European Southern Observatory, La Silla, Chile.

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