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Old 04-May-2006, 11:36 PM
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Default 44 New Planetary Nebulae

Title: New Planetary Nebulae towards the Galactic bulge
Authors: P. Boumis (1), S. Akras (1), P. A. M. van Hoof (2), G. C. Van de Steene (2), J. Papamastorakis (3), J. A. Lopez (4) ((1) Institute of Astronomy & Astrophysics, National Observatory of Athens, Greece, (2) Royal Observatory of Belgium, Brussels, Belgium (3) University of Crete, Heraklion, Crete, Greece (4) Instituto de Astronomia, UNAM, Ensenada, Mexico)

44 New Planetary Nebulae were discovered through an (O III) 5007 A emission line survey in the Galactic bulge region with l>0 deg.

The researchers detected 240 objects, including 44 new Planetary Nebulae. Deep Halpha+(N II) CCD images as well as low resolution spectra were obtained for the new Planetary Nebulae in order to study them in detail. Preliminary photo-ionisation models of the new Planetary Nebulae with Cloudy (the photo-ionisation code technique) resulted in first estimates of the physical parameters and abundances.
They are compared to the abundances of Galactic Planetary Nebulae.

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