Expanding shells within the Helix nebula /NGC 7293/

Details Expanding shells within the Helix nebula /NGC 7293/ Expanding shells within the Helix nebula /NGC 7293/

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..82..423m&link_type=abstract

Astrophysics and Space Science, vol. 82, no. 2, Mar. 1982, p. 423-439. Research supported by the Science Research Council.

Astronomy and Astrophysics

Astrophysics

23

Planetary Nebulae, Stellar Structure, Astronomical Photography, Expansion, Fabry-Perot Interferometers, Line Spectra, Nitrogen Ions, Oxygen Ions, Radial Velocity, Spherical Shells

Scientific paper

Filter photographs and Fabry-Perot interferograms of the Helix nebula reveal evidence of approximately spherical expansion. Helicentric radial velocities from plus 44 to minus 51 km/s have been detected over the center of the nebula. A 'dumb-bell' configuration, viewed at a small angle to the longest axis, is proposed to explain many of these observations.

Affiliated with

Also associated with

No associations

Rating

Expanding shells within the Helix nebula /NGC 7293/ 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 Expanding shells within the Helix nebula /NGC 7293/, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expanding shells within the Helix nebula /NGC 7293/ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1015114