Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Completing the Massive Star Population: Striking Into the Field   As a population, field massive stars are relatively enigmatic, and this
review attempts to illuminate this sector of the high-mass stellar population,
which comprises 20 - 25% of the massive stars in star-forming galaxies. The
statistical properties of the field population are vital diagnostics of star
formation theory, cluster dynamical evolution, and stellar evolution. We
present evidence that field massive stars originate both in situ and as
runaways from clusters, based on the clustering law, IMF, rotation velocities,
and individual observed in situ candidate field stars. We compare the known
properties of field and cluster massive stars from studies in the Magellanic
Clouds and the Galaxy, including our RIOTS4 complete spectroscopic survey of
SMC OB stars. In addition to the origin of the field massive stars, we discuss
additional properties including binarity, runaway mechanisms, and some evolved
spectral types.

37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio