Fragmentation of elongated cylindrical clouds. III - Formation of binary and multiple systems

Details Fragmentation of elongated cylindrical clouds. III - Formation of binary and multiple systems Fragmentation of elongated cylindrical clouds. III - Formation of binary and multiple systems

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...377..553b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 377, Aug. 20, 1991, p. 553-558. Research supported by NSERC and SNSF.

Other

86

Binary Stars, Fragmentation, Molecular Clouds, Star Formation, Stellar Systems, Astronomical Models, Jeans Theory, Three Dimensional Models

Scientific paper

Using three-dimensional hydrodynamical simulations, the fragmentation of uniform, isothermal, elongated molecular clouds, slowly rotating around an axis perpendicular to their elongation is studied. It is argued that this process could result in the formation of binary and multiple stars. This new method for forming binary stars can explain wide binaries with large eccentricities and various mass ratios. At relatively low initial Jeans numbers (the ratio of the absolute value of gravitational to thermal energies), a simple binary system is formed. For higher initial Jeans numbers, multiple fragmentation occurs between the binary fragments, forming a multiple system. This spontaneous additional fragmentation is believed to be induced by rotation. The disks around the fragments were observed to be perturbed by the presence of multiple fragments resulting in a m = 1 disk instability. This instability results in the formation of another companion.

Affiliated with

Also associated with

No associations

Rating

Fragmentation of elongated cylindrical clouds. III - Formation of binary and multiple systems 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 Fragmentation of elongated cylindrical clouds. III - Formation of binary and multiple systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fragmentation of elongated cylindrical clouds. III - Formation of binary and multiple systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1725549