Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SK 1: A Possible Case of Triggered Star Formation in Perseus   According to a triggered star formation scenario (e.g. Martin-Pintado &
Cernicharo 1987) outflows powered by young stellar objects shape the molecular
clouds, can dig cavities, and trigger new star formation. NGC 1333 is an active
site of low- and intermediate star formation in Perseus and is a suggested site
of self-regulated star formation Norman & Silk 1980. Therefore it is a suitable
target for a study of triggered star formation (e.g. Sandell & Knee 2001, SK
1). On the other hand, continuum sub-mm observations of star forming regions
can detect dust thermal emission of embedded sources (which drive outflows),
and further detailed structures. Within the framework of our wide-field mapping
of star formation regions in the Perseus and Orion molecular clouds using SCUBA
at 850 and 450 micrometers, we map NCG 1333 with an area of around 14' x 21'.
The maps show more structure than the previous maps of the region observed in
sub-mm. We have unveiled the known embedded SK 1 source (in the dust shell of
the SSV 13 ridge) and detailed structure of the region, among some other young
protostars. In agreement with the SK 1 observations, our map of the region
shows lumpy filaments and shells/cavities that seem to be created by outflows.
The measured mass of SK 1 (~0.07 Msun) is much less than its virial mass
(~0.2-1 Msun). Our observations support the idea of SK 1 as an event triggered
by outflow-driven shells in NGC 1333 (induced by an increase in gas pressure
and density due to radiation pressure from the stellar winds, that have
presumably created the dust shell). This kind of evidences provides a more
thorough understanding of the star formation regulation processes.

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The categories of this paper are: math
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The categories of this paper are: math-ph
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The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph