Observations of C3 in Translucent Sight Lines

Details Observations of C3 in Translucent Sight Lines Observations of C3 in Translucent Sight Lines

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003apj...582..823o&link_type=abstract

The Astrophysical Journal, Volume 582, Issue 2, pp. 823-829.

Astronomy and Astrophysics

Astronomy

36

Astrochemistry, Ism: Lines And Bands, Ism: Molecules

Scientific paper

The A1Πu<-- X1Σ+g transition of the simplest polyatomic carbon chain molecule, C3, at 4051.6 Å has been searched for toward reddened stars where abundant C2 had been reported and toward other stars with high color excess. Absorption from C3 has been detected toward 15 stars with color excess E(B-V) from 0.33 to 1.12. The observed C3 column densities, ranging from 1012 to 1013 cm-2, are well correlated with the corresponding C2 column densities, with N(C2)/N(C3)~40, indicating their close chemical relation. The carbon-rich sight line toward HD 204827 (for which no previous C2 observation had been reported) has by far the highest C3 and C2 column densities. The chemistry of formation of C3 from C2 is discussed. A search for the next strongest 020-000 vibronic band was unsuccessful as a result of the low Franck-Condon factor and interference with a stellar line. Searches for C4 and C5 were negative.

Affiliated with

Also associated with

No associations

Rating

Observations of C3 in Translucent Sight Lines 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 C3 in Translucent Sight Lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of C3 in Translucent Sight Lines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1525897