Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the propensity of the formation of massive clumps via fragmentation
  of driven shells   Early type massive stars drive thin, dense shells whose edges often show
evidence of star-formation. The possibility of fragmentation of these shells,
leading to the formation of putative star-forming clumps is examined with the
aid of semi-analytic arguments. We also derive a mass-spectrum for clumps
condensing out of these shells by performing Monte-Carlo simulations of the
problem. By extending on results from our previous work on the stability of
thin, dense shells, we argue that clump-mass estimated by other authors in the
past, under a set of simplifying assumptions, are several orders of magnitude
smaller than those calculated here. Using the expression for the fastest
growing unstable mode in a shock-confined shell, we show that fragmentation of
a typical shell can produce clumps with a typical mass $\gtrsim 10^{3}$
M$_{\odot}$. It is likely that such clumps could spawn a second generation of
massive and/or intermediate-mass stars which could in turn, trigger the next
cycle of star-formation. We suggest that the ratio of shell thickness-to-radius
evolves only weakly with time. Calculations have been performed for stars of
seven spectral types, ranging from B1 to O5. We separately consider the
stability of supernova remnants.

22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom