Observations of the H2CO molecule - The density of dark clouds

Details Observations of the H2CO molecule - The density of dark clouds Observations of the H2CO molecule - The density of dark clouds

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....51..469l&link_type=abstract

Astronomy and Astrophysics, vol. 51, no. 3, Sept. 1976, p. 469-473.

Astronomy and Astrophysics

Astrophysics

25

Formaldehyde, Interstellar Matter, Microwave Spectra, Millimeter Waves, Radiative Transfer, Collision Rates, Electron Transitions, Line Spectra, Molecular Excitation, Molecular Spectra

Scientific paper

Observations of dark clouds in the 1(10)-1(11) and 2(11)-1(11) transitions of H2CO, together with a non-LTE analysis of radiative transfer in these clouds, enable the hydrogen number density and the formaldehyde column density to be determined. Densities needed to excite the H2CO millimeter lines are shown to be of the order of 10,000 per cu cm, and it is found that the collisional rate coefficients are unable to explain the 6-cm line strength in at least one low-temperature (10 K) cloud.

Affiliated with

Also associated with

No associations

Rating

Observations of the H2CO molecule - The density of dark 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 Observations of the H2CO molecule - The density of dark clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of the H2CO molecule - The density of dark clouds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1412778