The relationship between carbon monoxide abundance and visual extinction in interstellar clouds

Details The relationship between carbon monoxide abundance and visual extinction in interstellar clouds The relationship between carbon monoxide abundance and visual extinction in interstellar clouds

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...262..590f&link_type=abstract

Astrophysical Journal, Part 1, vol. 262, Nov. 15, 1982, p. 590-605. NASA-supported research.

Astronomy and Astrophysics

Astrophysics

688

Abundance, Carbon Monoxide, Interstellar Extinction, Interstellar Matter, Molecular Clouds, Astronomical Catalogs, Gas Density, Isotopes, Mass

Scientific paper

Carbon monoxide column densities are compared to visual extinctions toward field stars in the rho Oph and Taurus molecular cloud complexes. The relationship of C(0-18) column density to extinction is established, and new determinations for (C-13)O column densities are given for a range of visual extinctions extended to beyond 20 mag. A prescription for determining hydrogen column densities and masses of molecular clouds from observations of CO isotopes is presented and discussed critically. These measurements agree well with the predictions of gas phase chemistry models which include chemical fractionation and selective isotopic photodestruction. The functional dependence of the C(O-18) column density on extinction is characterized by two different regimes separated by a distinct transition observed to occur at 4 mag in both molecular cloud complexes, whereas the functional dependence of (C-13)O is quite different in the two regions. Some saturation is found to occur for C(O-18) emission at high visual extinction and use the rarer isotopic species C(O-17) and (C-13)(O-18) to correct for it.

Affiliated with

Also associated with

No associations

Rating

The relationship between carbon monoxide abundance and visual extinction in interstellar clouds 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 The relationship between carbon monoxide abundance and visual extinction in interstellar clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The relationship between carbon monoxide abundance and visual extinction in interstellar clouds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1756270