New Planetary Nebulae in the Galactic Bulge region with l>0deg - I. Discovery method and first results

2); (2) Department of Physics; 3) ((1) Institute of Astronomy & Astrophysics; (3) Foundation for Research; Euthimios V. Paleologou (2); Fotis Mavromatakis (2); Ioannis Papamastorakis (2; National Observatory of Athens (Greece); Panayotis Boumis (1; Technology-Hellas (Greece))

arxiv: astro-ph/0211078 · v1 · submitted 2002-11-05 · 🌌 astro-ph

New Planetary Nebulae in the Galactic Bulge region with l>0deg - I. Discovery method and first results

Panayotis Boumis (1 , 2) , Euthimios V. Paleologou (2) , Fotis Mavromatakis (2) , Ioannis Papamastorakis (2 , 3) ((1) Institute of Astronomy & Astrophysics , National Observatory of Athens (Greece) , (2) Department of Physics

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University of Crete (Greece) (3) Foundation for Research Technology-Hellas (Greece))

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keywords firstbeenbulgedetectedgalacticknownnebulaeoptical

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We present the first results of an [O III] 5007 A interference filter survey for Planetary Nebulae (PNe) in the Galactic bulge. Covering (at first) the 66 per cent of the survey area, we detected a total of 90 objects, including 25 new PNe, 57 known PNe and 8 known PNe candidates. Deep Halpha+[N II] CCD images have been obtained as well as low resolution spectra for the newly discovered PNe. Their spectral signature suggests that the detected emission originates from a photoionized nebula. In addition, absolute line fluxes have been measured and the electron densities are given. Accurate optical positions and optical diameters were also determined.

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New Planetary Nebulae in the Galactic Bulge region with l>0deg - I. Discovery method and first results

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