On the origin of binaries with twin components

Details On the origin of binaries with twin components On the origin of binaries with twin components

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...360..997t&link_type=abstract

Astronomy and Astrophysics, Vol. 360, p.997-1002

Astronomy and Astrophysics

Astrophysics

28

Stars: Binaries: Close, Stars: Binaries: General, Stars: Formation

Scientific paper

The existence of a statistically significant excess of dwarf binaries with mass ratios from 0.95 to 1, as first noted by Lucy & Ricco (?), is confirmed by modern data. Excess of such binaries, called twins, is found only for periods shorter than 40 days, and in the 2-30 days period range they constitute 10-20% of the total binary population. Twins must have been formed by a special mechanism. It cannot be a mass transfer in contact pre-main-sequence binaries, fission is also unlikely. As shown by Bate (2000), accretion onto a close binary shifts mass ratio towards 1, so twins may originate from binaries that became close while still surrounded by massive envelopes. Many twins are members of higher-multiplicity systems and/or clusters, which probably explains an early formation of a close binary by stellar dynamics.

Affiliated with

Also associated with

No associations

Rating

On the origin of binaries with twin components 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 On the origin of binaries with twin components, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the origin of binaries with twin components will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-734243