Detection of Vibrationally Excited CO in IRC+10216

Details Detection of Vibrationally Excited CO in IRC+10216 Detection of Vibrationally Excited CO in IRC+10216

2008-11-28

arxiv.org/abs/0811.4736v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in ApJ Letters

Scientific paper

Using the Submillimeter Array we have detected the J=3-2 and 2-1 rotational transitions from within the first vibrationally excited state of CO toward the extreme carbon star IRC+10216 (CW Leo). The emission remains spatially unresolved with an angular resolution of ~2" and, given that the lines originate from energy levels that are ~3100 K above the ground state, almost certainly originates from a much smaller (~10^{14} cm) sized region close to the stellar photosphere. Thermal excitation of the lines requires a gas density of ~10^{9} cm^{-3}, about an order of magnitude higher than the expected gas density based previous infrared observations and models of the inner dust shell of IRC+10216.

Affiliated with

Also associated with

No associations

Rating

Detection of Vibrationally Excited CO in IRC+10216 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 Detection of Vibrationally Excited CO in IRC+10216, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of Vibrationally Excited CO in IRC+10216 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-710410