Detection and Evolution of Complex Hydrocarbons in TMC

Details Detection and Evolution of Complex Hydrocarbons in TMC Detection and Evolution of Complex Hydrocarbons in TMC

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.7107v&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #71.07; Bulletin of the American Astronomical Society, Vol. 30, p.1356

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The cold, dark cloud cores are the important sites to probe the interstellar chemistry prevailing prior to the onset of collapse. TMC1 is an ideal object to study the chemistry in dark clouds under quiescent conditions. It shows a carbon rich chemistry with chemical gradients across its densest ridge extending over 0.2 pc x 0.6 pc. We present the results of the DSN 70m observations of complex carbon chain mol ecules (cumelene carbenes H_2C_n, radicals C_nH, cyanopolyynes HC_{2n+1}N, cumulene rings C_nH_2) at a few locations (CCS, cyanopolyyne, ammonia and SO peaks) along TMC1 ridge. We report the first detection of C_8H in TMC. Large differences are seen in t he intensity ratios among these molecules at different velocities as well as po sitions. Our results indicate differences in the chemical evolutionary statu s among the clumps in the TMC1 ridge. This can be interpreted in terms of a de nsity and time dependent chemical models for the formation and evolution of co mplex molecules. This research was conducted at the Jet Propulsion Laboratory, California Institute of Technology under support from the National Aeronautics and Space Administration.

Affiliated with

Also associated with

No associations

Rating

Detection and Evolution of Complex Hydrocarbons in TMC 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 and Evolution of Complex Hydrocarbons in TMC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection and Evolution of Complex Hydrocarbons in TMC will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-995694