The Abundance of (3) He and Evidence for a Large Halo in the Planetary Nebulae NGC3242

Details The Abundance of (3) He and Evidence for a Large Halo in the Planetary Nebulae NGC3242 The Abundance of (3) He and Evidence for a Large Halo in the Planetary Nebulae NGC3242

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.9714b&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #97.14; Bulletin of the American Astronomical Society, Vol. 28, p.1403

Astronomy and Astrophysics

Astronomy

Scientific paper

Observations of the hyperfine (3) He(+) line and radio recombination lines of H and (4) He at 8.7 GHz indicate the presence of a low surface brightness, extended halo surrounding the planetary nebula NGC3242. Numerical models are developed to produce synthetic spectra for an ionized nebula which predict such a halo for NGC3242. We determine a (3) He(+) /H(+) abundance ratio of 0.6 +/- 0.1 x 10(-3) , which is consistent with the expected enrichment of (3) He predicted by standard stellar models of low-mass stars. We conclude that the ionized halo is associated with the planetary nebula.

Affiliated with

Also associated with

No associations

Rating

The Abundance of (3) He and Evidence for a Large Halo in the Planetary Nebulae NGC3242 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 The Abundance of (3) He and Evidence for a Large Halo in the Planetary Nebulae NGC3242, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Abundance of (3) He and Evidence for a Large Halo in the Planetary Nebulae NGC3242 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-818122