IR emission from carbon-dust in nebulae.

Details IR emission from carbon-dust in nebulae. IR emission from carbon-dust in nebulae.

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...325..269c&link_type=abstract

Astronomy and Astrophysics, v.325, p.269-276

Astronomy and Astrophysics

Astrophysics

1

Ism: Dust, Ism: Planetary Nebulae

Scientific paper

The relevance of dust in circumstellar emission has to be carefully considered in order to properly interpret astronomical observations. In this work we focus on carbon-rich planetary nebulae in order to produce models able to account for IR and submillimeter dust emission. The effects of dust selective absorption on the ionization structure are investigated by means of dust opacities measured in laboratory experiments. The infrared spectrum emitted by dust present in both ionized and neutral circumstellar regions is calculated for various choices of the model parameters. The IR dust continuum emission in planetary nebula NGC 7027 is also modelled on the basis of a possible evolutionary scenario for carbon dust grains. Our results provide evidence that by means of UV dust processing it is possible to account for most of the spectral distribution of carbon-rich planetary nebulae. However, non-equilibrium emission is needed to explain near-IR bands and part of the underlying continuum.

Affiliated with

Also associated with

No associations

Rating

IR emission from carbon-dust in nebulae. 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 IR emission from carbon-dust in nebulae., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IR emission from carbon-dust in nebulae. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1222313