Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-03-07
Astronomy and Astrophysics
Astrophysics
16 page, accepted by Ap&SS
Scientific paper
10.1007/s10509-006-9049-4
A systematic study of the linear thermal instability of a self-gravitating magnetic molecular cloud is carried out for the case when the unperturbed background is subject to local expansion or contraction. We consider the ambipolar diffusion, or ion-neutral friction on the perturbed states. In this way, we obtain a non-dimensional characteristic equation that reduces to the prior characteristic equation in the non-gravitating stationary background. By parametric manipulation of this characteristic equation, we conclude that there are, not only oblate condensation forming solutions, but also prolate solutions according to local expansion or contraction of the background. We obtain the conditions for existence of the Field lengths that thermal instability in the molecular clouds can occur. If these conditions establish, small-scale condensations in the form of spherical, oblate, or prolate may be produced via thermal instability.
Ghanbari Jamshid
Nejad-Asghar Mohsen
No associations
LandOfFree
Formation of Small-Scale Condensations in the Molecular Clouds via Thermal Instability 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 Formation of Small-Scale Condensations in the Molecular Clouds via Thermal Instability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Formation of Small-Scale Condensations in the Molecular Clouds via Thermal Instability will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-446297