Comment on the coal model of interstellar dust.

Details Comment on the coal model of interstellar dust. Comment on the coal model of interstellar dust.

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...293..559p&link_type=abstract

Astronomy and Astrophysics 293, 559-561 (1995)

Astronomy and Astrophysics

Astrophysics

4

Interstellar Dust, Infrared, Interstellar Medium, Reflection Nebula, Diffuse Medium

Scientific paper

We contest the ability of the "coal model" (Papoular et al. 1989, 1991, 1993) of interstellar grains to explain the observed unidentified IR bands at 3.3 - 6.2 - 7.7 - 8.6 - 11.3μm. Using the optical properties of coal as measured in the laboratory by the authors of the model, we calculate the equilibrium temperature of coal grains in NGC 2023, a typical reflection nebula that exhibits these emission bands. We find T<120K and show that this temperature is significantly too low to explain the observed emission at 3.3μm. Further, we consider the emission of a typical cirrus cloud in the mid IR and conclude that the coal model cannot explain the basic observations which have led to the temperature fluctuation model, including the emission colour temperature non-depedence upon the distance from the exciting source.

Affiliated with

Also associated with

No associations

Rating

Comment on the coal model of interstellar dust. 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 Comment on the coal model of interstellar dust., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comment on the coal model of interstellar dust. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1817541