Computer Science
Scientific paper
May 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pnas...83.2777a&link_type=abstract
Proceedings of the National Academy of Sciences of the United States of America, Volume 83, Issue 9, pp. 2777-2781
Computer Science
6
Scientific paper
One of the highest excitation planetary nebulae known, M1-1, was studied with the image-tube scanner on the Shane 3-m telescope at Lick Observatory and with the International Ultraviolet Explorer. Large fractions of abundant elements such as C, N, O, S, and Ar exist in unobservable stages of ionization. Hence, it is difficult to establish the chemical composition of this nebula. The logarithmic abundance values of various elements compared those of the Sun appear to be as follows: [Note: Table omitted. See the image of page 2777 for this table.] Here log N(H)=12. In contrast to NGC 6537, the composition of M1-1 does not appear to differ markedly from that of the Sun. N may be enhanced but there is no enhancement of He or C. In spite of its high excitation and its presumed origin from a relatively massive star, M1-1 shows no evidence for pronounced nuclear processing.
Aller Lawrence H.
Feibelman Walter A.
Keyes Charles D.
No associations
LandOfFree
Ultraviolet Spectrum and Probable Chemical Composition of the High-Excitation Planetary Nebula M1-1 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 Ultraviolet Spectrum and Probable Chemical Composition of the High-Excitation Planetary Nebula M1-1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultraviolet Spectrum and Probable Chemical Composition of the High-Excitation Planetary Nebula M1-1 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1776054