Grain Formation in Nova Envelopes

Details Grain Formation in Nova Envelopes Grain Formation in Nova Envelopes

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977pthph..57.1939y&link_type=abstract

Progress of Theoretical Physics, Vol. 57, No. 6, pp. 1939-1950

Physics

16

Scientific paper

Grain formation in ejected envelopes of novae is investigated. To solar abundance is assumed as one of the typical examples that C/O is smaller than unity. The magnesium silicate is proved to be the firstmain condensate. We estimate the monomer concentration c1(t1) at the onset of condensation to be about 105 cm-3 for Δ M =3 × 10-4 M&sun; and Vexp = 1000 km sec-1. (Δ M is the ejected mass and Vexp is the expansion velocity.) Then we calculate the time variation of the concentrations of magnesium-silicate grains on the basis of thenonsteady nucleation theory. The size distributions are found to be flat or diffuse and have no conspicuous peak. The boundary whether grains are formed or not is determined mainly by the amount of the ejected mass. The lower limit of the ejected mass for about 10-4Modot. The maximum radius of grains is estimated to be about 50 Å for c1(t1) = 5 × 105 cm-3.

Affiliated with

Also associated with

No associations

Rating

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

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1597146