The ionization structure and abundance of argon in gaseous nebulae

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

47

Abundance, Argon, Gas Ionization, Planetary Nebulae, Cosmic Gases, H Ii Regions, Helium, Hydrogen, Line Spectra, Neon, Oxygen, Solar System, Sulfur

Scientific paper

Line fluxes in the range 3500-8000 A have been obtained for 11 planetary nebulae and an H II region. A procedure which assumes that the observable ionization stages of argon (A(++), A(3+), and A(++)) coexist with those of helium (He(+) and He(++)) is found to yield argon abundances which are not correlated with the ionization level of the nebula and which are similar to previous determinations and to the solar system value. The standard procedures for deriving helium, oxygen, and neon abundances are found to work reliably in this study; there may be problems for nitrogen. A new procedure for deriving sulfur abundances is suggested; it too yields results which are not correlated with ionization level and which are close to the solar system value.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

The ionization structure and abundance of argon in gaseous 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 The ionization structure and abundance of argon in gaseous nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The ionization structure and abundance of argon in gaseous nebulae will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-991514

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.