Dust-induced chemical differentiation in dense regions

Details Dust-induced chemical differentiation in dense regions Dust-induced chemical differentiation in dense regions

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001mnras.325..826c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 325, Issue 2, pp. 826-834.

Astronomy and Astrophysics

Astronomy

4

Dust, Extinction, Ism: Molecules

Scientific paper

Dust grains respond to the physical and chemical conditions of the interstellar region in which they are embedded. The interaction produces an extinction curve which depends on the local environment and on the past history of the dust grains. In this work we present a theoretical study of the effects of radial variations of dust extinction properties on gas-phase chemistry in spherical core-halo clouds. We use observational constraints on the variation range of the extinction curve, and we analyse if the degree of dust environmental processing could be reflected by chemical signatures in the gas-phase molecular concentrations. The results of this work show that significant variations in the photodestruction rates and in the thermal profile of the cloud might induce chemical patterns otherwise excluded in the standard dense-cloud chemistry. Some discrepancies between observations and theoretical provisions are discussed in the light of the present results.

Affiliated with

Also associated with

No associations

Rating

Dust-induced chemical differentiation in dense regions 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 Dust-induced chemical differentiation in dense regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust-induced chemical differentiation in dense regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-802341