Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...555..472w&link_type=abstract
The Astrophysical Journal, Volume 555, Issue 1, pp. 472-476.
Astronomy and Astrophysics
Astronomy
6
Ism: Lines And Bands, Ism: Molecules, Methods: Laboratory, Molecular Data, Ultraviolet: Ism
Scientific paper
The three unidentified interstellar lines λλ1368.74, 1369.13, and 1370.87 are here assigned to the CH molecule, including the diffuse interstellar band (DIB) at 1369.13 Å. A consistent rotational assignment of the interstellar lines and the 3d-X 2Π laboratory spectrum is presented. The predominant broadening mechanism of the lines appears to be predissociation, which is found to be greater for lines with upper levels of d parity, including the DIB, than for lines with upper levels of c parity. The oscillator strength of the 3d-X 2Π transition is estimated to be f~0.033. Using the theoretical n* dependence of the parameters together with the wavenumber of the observed laboratory Q-form branch, an unidentified interstellar line at 1270.96 Å is assigned to the strongest line of the 4d-X 2Π transition of CH.
No associations
LandOfFree
Assignment of the λ1369.13 Diffuse Interstellar Absorption Band and Three Other Far-Ultraviolet Interstellar Absorption Lines to the CH Molecule 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 Assignment of the λ1369.13 Diffuse Interstellar Absorption Band and Three Other Far-Ultraviolet Interstellar Absorption Lines to the CH Molecule, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assignment of the λ1369.13 Diffuse Interstellar Absorption Band and Three Other Far-Ultraviolet Interstellar Absorption Lines to the CH Molecule will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1774104