[HTML][HTML] CO^+^ in the Orion Bar, M17 and S140 star-forming regions.
H St�rzer, J Stutzki, A Sternberg�- Astronomy and Astrophysics�…, 1995 - adsabs.harvard.edu
We present an observational study of mm-wave CO^+^ N= 2-1, J= 5/2-3/2 and J= 3/2-1/2
rotational emission from star-forming molecular clouds in Orion, M17 and S140. Intense
CO^+^ line emission is produced in the molecular cloud/HII region interfaces in the Orion
Bar and M17 SW with peak integrated intensities of 1.3 to 1.9 Kkm/s in the J= 5/2-3/2 line. In
S140 we derive an upper limit of 30mK for this line. The observed CO^+^ emission is likely
produced in the photon-dominated regions on the surfaces of dense molecular clumps at the�…
rotational emission from star-forming molecular clouds in Orion, M17 and S140. Intense
CO^+^ line emission is produced in the molecular cloud/HII region interfaces in the Orion
Bar and M17 SW with peak integrated intensities of 1.3 to 1.9 Kkm/s in the J= 5/2-3/2 line. In
S140 we derive an upper limit of 30mK for this line. The observed CO^+^ emission is likely
produced in the photon-dominated regions on the surfaces of dense molecular clumps at the�…