Astronomy and Astrophysics – Astrophysics
Scientific paper
1993-07-22
Astronomy and Astrophysics
Astrophysics
23, AASTEX, DPNU-93-10
Scientific paper
10.1086/173561
We discuss the fragmentation of a filamentary cloud on the basis of a 1-dimensional hydrodynamical simulation of a self-gravitating gas cloud. The simulation shows that dense cores are produced with a semi-regular interval in space and time from one edge to the other. At the initial stage the gas near one of the edges is attracted inwards by gravity and the accumulation of the gas makes a dense core near the edge. When the dense core grows in mass up to a certain amount, it gathers gas from the other direction. Accordingly the dense core becomes isolated from the main cloud and the parent filamentary cloud has a new edge. This cycle repeats and the fragmentation process propagates towards the other edge. The propagation speed is a few tens of percent larger than the sound speed. According to the theory, the age difference for the northwest-most and southeast-most cores in TMC-1 is estimated to be 0.68~pc/0.6~km~s$^{-1}$ = $ 10 ^6 $~y. The estimated age difference is consistent with that obtained from the chemical chronology.
Hanawa Tomoyuki
Hirahara Yasuhiro
Yamamoto Satoshi
No associations
LandOfFree
Sequential Star Formation in Taurus Molecular Cloud 1 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 Sequential Star Formation in Taurus Molecular Cloud 1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sequential Star Formation in Taurus Molecular Cloud 1 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-530072