Carbon monoxide emission from the Ring Nebula in Lyra

Details Carbon monoxide emission from the Ring Nebula in Lyra Carbon monoxide emission from the Ring Nebula in Lyra

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...218..252b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 218, no. 1-2, July 1989, p. 252-256. Research supported by CAICYT.

Astronomy and Astrophysics

Astrophysics

53

Carbon Monoxide, Emission Spectra, Lyra Constellation, Planetary Nebulae, Stellar Mass Ejection, Stellar Spectra, Angular Resolution, Ionized Gases, Molecular Gases, Stellar Luminosity

Scientific paper

CO J = 2-1 and J = 1-0 mapping of the Ring Nebula (NGC 6720) with 13 arcsec and 21 arcsec angular resolution, respectively, is presented. The CO emission appears to be extended over a region of 100 arcsec x 80 arcsec and it indicates that the mass of the molecular gas is 0.1 solar mass, i.e., significantly higher than the mass of the ionized gas, and several orders of magnitude higher than the mass of hot H2 as deduced from near infrared observations. The molecular gas is found to be concentrated in an expanding ring or hollow cylinder which is highly fragmented. Its 'youngness' and the moderate luminosity of its stellar progenitor during the post-AGB phase, explain why CO remains abundant in the Ring Nebula.

Affiliated with

Also associated with

No associations

Rating

Carbon monoxide emission from the Ring Nebula in Lyra 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 Carbon monoxide emission from the Ring Nebula in Lyra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon monoxide emission from the Ring Nebula in Lyra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1703299