Abundances of PN towards Galactic bulge (Escudero+, 2001)

Details Abundances of PN towards Galactic bulge (Escudero+, 2001) Abundances of PN towards Galactic bulge (Escudero+, 2001)

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ycat..33800300e&link_type=abstract

VizieR On-line Data Catalog: J/A+A/380/300. Originally published in: 2001A&A...380..300E

Physics

Planetary Nebulae, Abundances: Peculiar

Scientific paper

In this work we report spectrophotometric observations of a planetary nebula sample towards the galactic bulge. A total of 45 PNe was observed and their physical parameters (electron density and temperature) were derived. Ionic abundances were calculated using a three-level atom model and abundances were derived through ionisation correction factors. Results show low abundance objects at high galactic latitudes, indicating a possible vertical gradient inside the bulge. A few objects with low N/O ratio were found, which could have originated from old, low mass progenitors.
(2 data files).

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