Grain Formation in Atmospheres of Cool Dwarfs

Details Grain Formation in Atmospheres of Cool Dwarfs Grain Formation in Atmospheres of Cool Dwarfs

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ap%26ss.251..171a&link_type=abstract

Astrophysics and Space Science, Volume 251, Issue 1-2, pp. 171-175

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

We have constructed a grid of model atmospheres for cool dwarf stars and brown dwarfs with Teff ≤ 3000 K that includes (i) an equation of state which accounts for over 600 gas phase species and 1000 liquids and solids, and (ii) the opacities of corundum (Al2O3), iron, enstatite (MgSiO3) and forsterite (Mg2SiO4), as well as amorphous carbon and SiC. We confirm earlier findings of Tsuji, Ohnaka & Aoki (1996a) that grains are abundant in the outer photospheric layers of red and brown dwarfs with spectral type later than M8. We identify high temperature condensates including perovskite (CaTiO3) that depletes the photospheres of important absorbers including TiO, and we confirm the disappearance of TiO bands in the observed spectra of cool dwarfs.

Affiliated with

Also associated with

No associations

Rating

Grain Formation in Atmospheres of Cool Dwarfs 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 Grain Formation in Atmospheres of Cool Dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grain Formation in Atmospheres of Cool Dwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1184628