Galactic Abundance Patterns via Peimbert Types I & II Planetary Nebulae

Details Galactic Abundance Patterns via Peimbert Types I & II Planetary Nebulae Galactic Abundance Patterns via Peimbert Types I & II Planetary Nebulae

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.0807m&link_type=abstract

American Astronomical Society Meeting 207, #08.07; Bulletin of the American Astronomical Society, Vol. 37, p.1162

Astronomy and Astrophysics

Astronomy

Scientific paper

Planetary Nebulae (PNe) are well known fonts of information about both stellar evolution and galactic chemical evolution. Abundance patterns in PNe are used to note signatures and constraints of nuclear processing, and as tracers of the distribution of metals throughout galaxies. In this poster abundance gradients and heavy element ratios are presented based upon newly acquired spectrophotometry of a sample of Galactic Peimbert Type I PNe. This new data set is extracted from spectra that extend from λ 3600 - 9600Å allowing the use of [S III] features at λ 9069 and 9532Å. Since a significant portion of S in PNe resides in S+2 and higher ionization stages, including these features improves the extrapolation from observed ion abundances to total element abundance. An alternate metallicity tracer, Sulfur is precluded from enhancement and depletion across the range of PNe progenitor masses. Its stability in intermediate mass stars makes it a useful tool to probe the natal conditions as well as the evolution of PNe progenitors. This is a continuation of our Type II PNe work, the impetus being to compile a relatively large set of line strengths and abundances with internally consistent observation, reduction, calibration, and abundance determination, minimizing systematic affects that come from compiling various data sets. This research is supported by the AAS Small Research Grants program, the Franklin & Marshall Committee on Grants, and NSF grant AST-0307118.

Affiliated with

Also associated with

No associations

Rating

Galactic Abundance Patterns via Peimbert Types I & II Planetary Nebulae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Galactic Abundance Patterns via Peimbert Types I & II Planetary Nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galactic Abundance Patterns via Peimbert Types I & II Planetary Nebulae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1277347