Observations of peripheral regions of the Orion Nebula

Details Observations of peripheral regions of the Orion Nebula Observations of peripheral regions of the Orion Nebula

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234..909k&link_type=abstract

Astrophysical Journal, Part 1, vol. 234, Dec. 15, 1979, p. 909-911.

Astronomy and Astrophysics

Astrophysics

3

Abundance, Orion Nebula, Oxygen Ions, Forbidden Bands, Helium, Hydrogen Atoms, Ionized Gases, Oxygen Atoms

Scientific paper

Three positions in the Orion Nebula - near the Trapezium, 3 arcmin, 25 arcsec south and 6 arcmin, 5 arcsec north of the Trapezium - were observed in an attempt to measure any depletion in oxygen that might be caused by the formation of dust grains in the outer parts of the nebula. No such depletion is found. Without the errors of observation, the O/H ratio is the same for all three regions; a variation greater than 60% cannot be justified. Neutral helium is very important in the outermost position observed, where the He(+)/H(+) ratio is less than half the value found in the central part of the nebula. In the outermost region oxygen is much more highly ionized as compared with planetary nebulae of similar low helium ionization.

Affiliated with

Also associated with

No associations

Rating

Observations of peripheral regions of the Orion Nebula 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 Observations of peripheral regions of the Orion Nebula, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of peripheral regions of the Orion Nebula will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1443079