Fragmentation of filamentary molecular clouds with longitudinal magnetic fields: Formation of disks and their collapse

Details Fragmentation of filamentary molecular clouds with longitudinal magnetic fields: Formation of disks and their collapse Fragmentation of filamentary molecular clouds with longitudinal magnetic fields: Formation of disks and their collapse

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...444..770n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 444, no. 2, p. 770-786

Astronomy and Astrophysics

Astrophysics

71

Accretion Disks, Gravitational Collapse, Interstellar Matter, Magnetic Fields, Mathematical Models, Molecular Clouds, Star Formation, Asymptotic Methods, Gravity Anomalies, Kinematics, Magnetohydrodynamics, Rotation, Two Dimensional Models

Scientific paper

We followed the fragmentation of magnetized filamentary clouds and the formation of disks with numerical simulations and a semianalytical approach. Two-dimensional magnetohydrodynamical simulations showed that a filamentary cloud with longitudinal magnetic fields fragments to form gemoetrically thin disks perpendicular to the magnetic field. Each disk contracts dynamically toward the symmetry axis keeping quasi-static equilibrium in the direction parallel to the axis. We followed the late-stage evolution of the disk with a one-dimensional numerical simulation assuming that the disk is infitesimally thin and found that hte disk approaches a state in which the surface density is inversely proportional to the distance from the center, suggesting the existence of a similarity solution. With some simplification we obtaine numerically some similarity solutions for one-dimensional dynamically contracting disks.

Affiliated with

Also associated with

No associations

Rating

Fragmentation of filamentary molecular clouds with longitudinal magnetic fields: Formation of disks and their collapse 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 filamentary molecular clouds with longitudinal magnetic fields: Formation of disks and their collapse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fragmentation of filamentary molecular clouds with longitudinal magnetic fields: Formation of disks and their collapse will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1058618