Carbon stars with oxygen-rich circumstellar dust shells Observational evidence for the onset of the carbon star phase

Details Carbon stars with oxygen-rich circumstellar dust shells Observational evidence for the onset of the carbon star phase Carbon stars with oxygen-rich circumstellar dust shells Observational evidence for the onset of the carbon star phase

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...309l..39w&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 309, Oct. 1, 1986, p. L39-L42. Research supported b

Astronomy and Astrophysics

Astrophysics

177

Carbon Stars, Cosmic Dust, Oxygen, Stellar Envelopes, Stellar Evolution, Stellar Spectrophotometry, Emission Spectra, Visible Spectrum

Scientific paper

Results from the IRAS Low Resolution Spectrograph (LRS) are presented which show that some carbon stars are surrounded by circumstellar shells containing oxygen-rich silicate-type dust rather than carbon-rich dust. This observation suggests that these stars have quite recently become carbon stars because they are still surrounded by the last remnant of the oxygen-rich M-type phase. It also suggests a direct transition from M-type to C-type rather than through an intermediate S phase. The transition takes place in about 100 years. Using a simple statistical argument, the typical duration of the carbon star phase is estimated to be from 1000 to 10,000 years.

Affiliated with

Also associated with

No associations

Rating

Carbon stars with oxygen-rich circumstellar dust shells Observational evidence for the onset of the carbon star phase 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 Carbon stars with oxygen-rich circumstellar dust shells Observational evidence for the onset of the carbon star phase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon stars with oxygen-rich circumstellar dust shells Observational evidence for the onset of the carbon star phase will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1736064