Abundances in HII regions and PNe of M81 (Stanghellini+, 2010)

Details Abundances in HII regions and PNe of M81 (Stanghellini+, 2010) Abundances in HII regions and PNe of M81 (Stanghellini+, 2010)

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ycat..35219003s&link_type=abstract

VizieR On-line Data Catalog: J/A+A/521/A3. Originally published in: 2010A&A...521A...3S

Physics

Galaxies: Nearby, H Ii Regions, Planetary Nebulae, Abundances

Scientific paper

We acquired Hectospec/MMT spectra of 39 PNe and 20 HII regions, with 33 spectra viable for temperature and abundance analysis. Our PN observations represent the first PN spectra in M81 ever published, while several HII region spectra have been published before, although without a direct electron temperature determination. We determine elemental abundances of helium, nitrogen, oxygen, neon, sulfur, and argon in PNe and HII regions, and determine their averages and radial gradients.
(3 data files).

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