Radio recombination line observations of compact planetary nebulae

Details Radio recombination line observations of compact planetary nebulae Radio recombination line observations of compact planetary nebulae

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...215..101g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 215, no. 1, May 1989, p. 101-112.

Astronomy and Astrophysics

Astronomy

13

H Alpha Line, Ionized Gases, Planetary Nebulae, Radio Sources (Astronomy), Recombination Reactions, Angular Resolution, Astronomical Maps, Density Distribution, Electron Density (Concentration), Electron Energy

Scientific paper

Observations of four compact PN (NGC 6369, NGC 6543, NGC 7009, and IC 418), obtained at 14.7 GHz using the D configuration of the VLA during 1984-1985, are reported. The data are presented in extensive tables, graphs, and maps and discussed in detail. The 2-cm continuum emission reveals highly symmetric shell structures, whereas the H76-alpha recombination-line emission has significantly different distributions in NGC 6543 and NGC 7009, attributed to (1) line amplification by stimulated emission in high-density regions and (2) electron-temperature variations within the nebula, respectively. Also reported are observations of IC 418 at H110-alpha, indicating an electron density of 18,000/cu cm.

Affiliated with

Also associated with

No associations

Rating

Radio recombination line observations of compact 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 Radio recombination line observations of compact planetary nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio recombination line observations of compact planetary nebulae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1873899